2019

Permanent URI for this collectionhttps://repository.iuls.ro/handle/20.500.12811/207

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Sensorial evaluation of meat gathered from slow growing hen hybrids
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Irimia Gavrilescu, Carmen; Druc Gafencu, Paula-Viorela; Raţu, Roxana-Nicoleta; Usturoi, Alexandru; Usturoi, Marius-Giorgi
Sensorial appreciations were carried out by a specialized team of tasters, through specific methods for those type of evaluation. Were utilised meat samples gathered from pectoral musculature from three hen hybrids (Ross-308, Hubbard and HB Color) reared in extensive system (shelters with free access to external paddocks) and slaughtered at different ages (56, 63 and 81 days). Meat of Hubbard hybrid received the highest scores for tenderness (4.68-4.75 points), aroma and savour (4.93-4.96 points) and for consistency (4.73-4.78 points), and the one from Ross-308 for succulence (4.13-4.33 points). The lowest scores were obtained by meat from HB Color in case of tenderness (3.63-3.68 points) and succulence (3.05-3.25 points) and respectively, at the one from Ross-308 for aroma and savoury (4.23-4.53 points) and consistency (3.60-3.70 points). Regarding the influence of slaughtering age on sensorial features of meat was observed that increasing of poultry growing period diminished the score given for three analysed, with the exception of aroma and savour which became more intense while chickens advanced in age. The conclusion of the current study was the rusticity of hybrids with slow growing allow to obtain a meat with superior sensorial features than the one gathered from industrial type hybrids, a special being given to Hubbard hybrid.
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Performances of some hen broilers in conditions of a slow growing application in extensive system and with slaughtering at different ages
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Irimia Gavrilescu, Carmen; Druc Gafencu, Paula-Viorela; Raţu, Roxana-Nicoleta; Usturoi, Alexandru; Usturoi, Marius-Giorgi
Research was carried out on three meat hen hybrids (one for industrial rearing: Ross-308 and two with slow growing: Hubbard and HB Color), reared in extensive system, in shelters opened to external paddocks. Speaking about growing rhythm, the best results were obtained at Ross-308 chickens (mean gain of 39.11-41.82 g/head/day), higher with 2.05-21.43% than at HB Color and with 1.62-16.14% than at Hubbard, with the mention that at growing series till 56 days Hubbard chickens overcome the Ross-308 ones with 0.5%. The final weight was 2.25-3.28 kg at Ross-308, higher with 0.44-12.19% than at Hubbard and with 2.75-21.64% face to HC Color. The best total fodder consumption was also at Ross-308 (5257-7319 g m.f./period), and the most inconvenient one was at HB Color (5439-7945 g m.f./period). Conversely, Ross-308 chickens had the highest mortality rate (9.04-12.021%), higher with 6.71-8.11% than Hubbard and with 2.69-4.29% than HB Color. Our conclusion was that only Hubbard hybrid realised production parameters close to the ones mentioned in rearing guide, and optimal slaughtering age of chickens with slow growing is 63 days
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Research regarding texture of wild boar meat (Sus scrofa ferus) from Frasin area, Suceava
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Munteanu, M.; Ciobanu, Marius-Mihai; Postolache, Alina-Narcisa; Boişteanu, Paul-Corneliu
Meat provided from hunted species represent a nourishment alternative into a continuous expansiveness due to high nutritive properties, particular taste and continuous interest of husbandry industry, as well as consumers, for diversification (exploitation) of hunting resources at industrial level. So, the present research aimed to realise an intrinsic exploration of properties of meat gathered from hunted species which are specific to Romania, aiming to create a solid scientific base at national level for effectiveness of a correct information and realization of an accurate general picture on textural profile for this meat. To achieve the proposed target, determinations were carried out on a total number of 11 adult wild boar individuals (6 males and 5 females), gathered during some hunting parties organized in N-E area of Romania (Suceava Forestry Department, Frasin hunting fund). Inter-muscular variations of Warner Bratzler forces were described by great amplitude of data, being into interval 14.88 ÷ 86.63 N/cm2. So, mean tenderness of wild boar meat show for studies muscular samples a penetration force at breaking up of meat portion which varied into an interval inferiorly defined by 34.95±1.86 N/cm2 (m. Longissimus dorsi at females) and superiorly by 50.88±2.923 N/cm2 (m. Triceps brachii at males). By statistical analysis of existent differences, inside muscular group, between males and females for Warner Bratzler forces values were observed insignificant differences 75% from the total of effectuated tests.
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The effect of grape wastes, wine industry by-products, on inflammatory and antioxidant biomarkers in post-weaning piglets
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Pistol, Gina-Cecilia; Palade, L.M.; Marin, Daniela-Eliza; Stancu, Mariana; Taranu, Ionelia
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Aspects on education and training of young people through transdisciplinary educational projects
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Brezuleanu, Carmen-Olguța; Cantea Brezuleanu, Mădălina-Maria
The educational system must guarantee access for all young people to education and training, adapted to the economic realities. In this sense, transdisciplinary approach is centred on the realities of contemporary society, regarding the relevant issues of real life and how it is affected people's life. In particular, it tries to understand and to resolve the complex problems of the challenges. Educational project in the transdisciplinary approach it is a modern method of teaching-learning used in agronomic education. It stimulates creative students involved in the project through the development of critical thinking, helping them in: decision making, self organizing and self-assessment of individual resources, adopting positive attitudes in acquiring cognitive and trans-curricular skills. Educational project in transdisciplinary for agronomic education approach is focused on active learning, a method which creates observable behaviors such as: behaviors that indicate active participation, creative thinking, applied learning, involvement in building knovledge. Active learning became more interesting, stimulating, significant and students participate during whole activity, being stimulated cooperation and creativity. Aims of more disciplines agri- food, planned in the same week are reached during daily activities which includes fragments from those disciplines into a single generic and it is facilitate a good quality knowledge acquisition, which will be remembered for a long time. Real problems from daily life could be solved much easier by pupils and students, no matter the complexity degree, due to achievement of knowledge, abilities and competences which couldn’t be separated by one or another discipline.
listelement.badge.access-status Open Access ,
Sensorial assessment of frozen broiler meatin relation with time
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Ciobanu, Marius-Mihai; Lazăr, Roxana; Munteanu, M.; Pop, Cecilia; Boişteanu, Paul-Corneliu
Meat quality evaluation as aliment is addressed exclusively to consumer and it’s finally perception is a relation between chemical composition and sensorial perception. Freezing main effect upon meat quality is represented by cells’ destruction due to ice crystals increase. Freezing provoke changes in pigments, aroma or important nutritive components, even if those could be lost during excessive storage by freezing. Study aimed to evaluate sensorial parameters’ variation of pectoral musculature from three experimental batches with different freezing periods: three months (L1), six months (L2) and nine months (L3) at a storage temperature of -18°C in thermal centre. Colour mean uniformity for analysed samples was between 7.26±0.457 (L3) and 9.46±0.299 points (L1). For colour aspect, hedonic analysis results show certain uniformity between batches, while colour uniformity show a declassing of breast aspect from L3 batch, expressed by a mean difference higher with 2 points between batches L3 and L1, respectively L3 and L2. Analysed muscular samples show that batch L1 obtained the most favourable mean scores, meat being described by an intermediary granulosity, fibrousnesses, succulence and greediness and a minimal adhesiveness. Second place was occupied by texture of muscular samples belonging to batch L2, followed by the ones from batch L3.
listelement.badge.access-status Open Access ,
Study regarding the percentage of english thoroughbred blood in the last five generations for the best dressage horses in the world
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Spulber, Malina-Carina; Gîlcă, I.
With a typical velocity constitution, the English Thoroughbred stallion is the undisputed king of the hippodrome. In many breeding areas the special role for Thoroughbred stallions was to lighten and to make more athletic traditional horses used in agriculture. For this research we examine the first 100 dressage horses from FEI&WBFSH World Ranking List for Dressage Horses year 2017, divided in 4 groups for breed variable, and 3 groups for sex, height and age variables. There still is a percentage of English Thoroughbred blood in the last five generations for the best dressage horses in the world, with decreasing trend. In conclusion we can say that the modern dressage horse breed requires Thoroughbred blood also in the future, but they will not enjoy a privileged status. They will be selected for breed improvement, only stallions who will have the skills required for international training competitions.
listelement.badge.access-status Open Access ,
The effect of dietary crude fibre level on the final body weight, carcass weight, gizzard weight and length of intestine in Sentul chicken
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Widjastuti, Tuti; Abun; Tanwiriah, Wiwin
The research was held to find out of the effects of level crude fiber in the ration on the carcass weight, gizzard weight and length of intestine at sentul chicken. The research used 100 day old Sentul chickens. Crude fiber treatments in the ration were 6% (R1), 8% (R2), 10% (R3), and 12% (R4).The method used Completely Randomized Design (CRD), with five treatments and where each treatment was repeated five times and each repeated consist of five native chicks. Variable analyses were carcass weight, gizzard weight and the length of intestine. The research showed that from 6% to 8% crude fibre in the ration give the optimal results on the carcass weight, gizzard weight and the length of intestine. At 10-12% crude fibre in the ration, carcass weight was decrease, gizzard weight and the length of intestine was increase. The conclusion that the maximum crude fiber level needed in Sentul chicken rations was 8 %.
listelement.badge.access-status Open Access ,
Applying biosecurity measures to a poultry unit
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Leonte, Doina; Leonte, Constantin; Gîlcă, Valerica
Solving welfare problems requires establishing clear lines of communication between society, farmers, researchers and animals. For the elaboration of this paper we analyzed how the principles regarding welfare of hen broilers in FermaDor Iași poultry unit are applied: adequate nutrition, adequate shelter, proper behavior, good health. The study concluded that all animal welfare principles have been applied and respected in the establishment. The amount of water consumed by chickens is between their physiological requirements, namely 1.6 - 2 times more than the consumption of fodder, a bird in the given case at the age of 35 days consuming 338 g / water compared to 214 g /fodder. The combined granulated feed administered to the chickens is balanced in all nutritional aspects. It is distributed through an automatic spiral line system, organized in 4 feed lines with 586 feeders / hall, distributing a nourishing for 66 chickens. An optimal feeding front is provided for the whole herd of birds. Lighting in the study farm has an intensity of 30 lux in the first 7days of the chickens and decreases to 5 lux in the growing and finishing period. Treatments in the FermaDor are ensured by vaccinating from day 7 and by administering of a drug or feed additive substances through feed and water. The density of the chickens in the hall is from 18.29 to 17.62 chicken/m2 or 42 kg/ m2 depopulation, taking into account mortality. Trained staff capable of working has exemplary behavior and attitude towards raised birds
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Study regarding application of the FMEA method within a food safety management system
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Pop, Cecilia; Frunză, Gabriela; Ciobanu, Marius-Mihai
The paper aims the study of application of FMEA (Failure modes and effects analysis) method in a food safety management system for the manufacturing of an assortment of raw-dried salami. The working methodology consisted in the collection and processing of information based on practical experience and provided by food industry specialists, as well as those from the literature related to similar studies. Among the steps and activities required to apply the FMEA method is distinguished, as specificity, the calculation of Risk Priority Number (RPN) depending on the probability of occurrence of a potential hazard for food safety, the severity (seriousness) of consequences of its manifestation to the consumer and the probability of its detection. RPN was determined for each category of identified potential hazards (physical, chemical and biological) at all stages of the technological flow. The highest RPN values (over 100 points) were determined for the cold smoking (288), drying-ripening (252), reception (252), shredding (189), storage of raw materials (180) and for leakage, strengthening of the meat (162). Through RPN, a quantitative assessment can be made of the potential food safety problems in a system, and respectively a prioritization of implementation of preventive and corrective actions. The results obtained led to the formulation of some conclusions and recommendations for improvement and enlargement FMEA applying within food safety management systems.
listelement.badge.access-status Open Access ,
Nutrient balance study in a piglet diet supplemented with a mixture of fruits
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Gavriş, T.; Untea, Arabela; Cornescu, Gabriela; Panaite, Tatiana; Vărzaru, Iulia; Olteanu, Margareta; Șoica, Cristina; Mihaela Sărăcilă1
The objective of this study was to evaluate the effect of a mixture of dehydrated fruits (bilberry, blackcurrant, quince,) and essential oils (Bitter fenel fruit oil, Peppermint oil) on nutrients apparent digestibility coefficients on weaned piglets. A 4-week study on 8 piglets (18.69 ± 1.25 kg), male, castrated, half brothers, TOPIGS hybrid, randomly assigned in two groups (C and E). The piglets were housed in individual digestibility cages that allowed daily recording of ingesta and excretion, placed in a controlled microclimate hall (temperature of 22.9 ± 1.00 ° C, humidity 43.9% ± 3.37%). Both groups received diets with the same basic structure (corn, soybean meal - ME 3214 kcal/kg of feed and 18.00% CP). The diet of E group was supplemented daily with 1.65g mixture of fruits. During the experimental period, in the fourth week, a balance (5 days) was carried out to determine the apparent absorption coefficients of the nutrients. The balance parameters determined for protein, fat, ash and non nitrogen extractives substances decreased for experimental group, but the differences were not significant between groups. The same tendency was for digestibility of the amino acids, the differences being not statistically supported. The absorption coefficients of E group, for Cu, Mn, Zn decreased significantly compared to the C group. In conclusion the mixture of fruits does not improve the digestibility of nutrients, other benefits remaining to be studied.
listelement.badge.access-status Open Access ,
Influence of season on productive performances at brown breed exploited in north part of Romania
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Mihalache, Roxana-Georgiana; Gîlcă, Ioan; Postolache, Alina-Narcisa; Raţu, Roxana Nicoleta; Ciobanu, Marius-Mihai
The main objective of dairy cattle’s exploitation is the one to find an efficient economical path for increasing of milk production and quality. The results presented in the current study were obtained after an ample research which aimed to complete the information regarding quality of milk gathered from Brown breed cattle exploited in the N-E area of Romania. To achieve the proposed targets, research was carried out in according with an experimental design based on considerations regarding milk production and determination of milk quality by specific physical-chemical analysis during four seasons, aiming the following parameters: fat, protein, casein and lactose. For fat percentage, the lowest mean value was 3.24% (recorded in spring season) and the highest one 3.98%, (recorded in winter season). There are very significant differences (p<0.001) for fat percentage between seasons: autumn-winter; summer-winter; autumn-spring; summer-spring and insignificant differences (p>0.05) for seasons: spring-winter; autumn-summer. For protein percentage were calculated mean values between 3.46% and 3.61%, during spring months, respectively autumn months. The mean values calculated in the current study are in according with the limits from literature. Regarding casein percentage, in our own research were calculated mean values between 2.71% (summer) and 2.83% (winter).
listelement.badge.access-status Open Access ,
The effect of microbial phytase on improving digestibility of nutrients and performance parameters of growing pigs
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Rezana, Pengu; Etleva, Delia
During the last decades various experiments have been conducted all over the world with commercially available microbial phytases. Supplementation of these enzymes into the diets of growing pigs results in improving of performance parameters and digestibility of nutrients. The aim of this study was to test the effects of the microbial phytase (NATUPHOS) on the performance parameters and digestibility of nutrients of growing pigs. The microbial phytase preparation (Aspergillus niger, NATUPHOS) was supplemented to a basal ration 750 FTU/kg feed and the effects on growth performance of growing pigs were studied for six weeks experimental period. The supplementation of microbial phytase improved slightly daily weight gain, feed conversion ratio, increases the digestibility of nutrients and bioavailability of phosphorus from phytate, reduces the amount of inorganic phosphorus needed to maximize growth and bone mineralization and markedly reduces fecal excretion of phosphorus.
listelement.badge.access-status Open Access ,
Research regarding quality of raw cow milk utilised in obtaining of medium-hard cheeses
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Raţu, Roxana-Nicoleta; Usturoi, Marius-Giorgi
Quality of cheeses is given by the ensemble of physical-chemical and microbiological features, those ones being decisive about the choice made by consumers. The aim of the paper was to study the correlation between quality of raw material (cow milk) and quality of final product (Caşcaval de Şipote) obtained in a milk processing unit from Iaşi County. For milk were effectuated determinations to establish content of non-fat dried substance (8.84±0.02%), fat (4.10±0.016%), protein (3.34±0.007%), lactose (4.83±0.011), casein (3.04±0.05%) and ash (0.69±0.009%), making, also, determinations for acidity (°T) and density (g/cm³) of raw milk. Regarding final product, were made determinations for establishing the fat content where mean was situated at a level of 24.085±0.02% minimum being 24% and maximum value reaching 24.15%. Regarding variation coefficient, those one presented a very homogenous character (0.201%). Also, were realised determinations to establish moisture content (44.964±0.02%), DM (55.036±0.02%) and FMD (43.67±0.02%). Other indicators with a real interest for defining the qualitative ensemble of analysed product were represented by salt content, which recorded a mean of 2.45±0.01% and acidity which was situated at a level of 183.97±0.07°T. The obtained results at the end of research which was at the base of the current study highlighted the fact that utilisation of a raw material with a good quality lead to obtaining of final products with a rich nutritive value.
listelement.badge.access-status Open Access ,
Study on nutritional quality of some products from fresh pork
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Frunză, Gabriela; Pop, Mircea-Ioan
The study had as purpose an analysis of the nutritional quality of two products from fresh pork (seasoned scruff and seasoned spare ribs) based on the raw chemical composition and respectively their energy value. Were analyzed 40 samples (20 samples for each type of product under study). The water, proteins, lipids and collagen content was determined using the automated analyzer Food Check (infrared spectrophotometer); mineral substances were determined by calcination, and carbohydrate content and energy value were established by calculation, using conventional formulas. Following conducted analyzes (on the scruff muscles and intercostal muscles), was observed a high variability in fat content of the two products studied: 12.55 g/100g lipids for the scruff muscles and 24.49g/100g lipids for intercostal muscles. This has resulted in a higher energy value for spare ribs (295.17 kcal/100g), this one containing with 11.94 g/100g more lipids compared to the scruff (198.67 kcal/100g). The average amount of protein varied less for the two products studied, with differences of 2.75 g/100g (19.51 g/100 g for pork scruff and 16.74 g/100 g for intercostal muscles). The data obtained were statistically processed by classical methods.
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Statistical analysis of tourism circulation and accommodation capacity in the period 2008 – 2017 in Neamţ county
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Simeanu, Cristina; Păsărin, Benone; Simeanu, Daniel; Şonea, C.G.; Roşca, C.
The evolution of the number of arrivals during the period 2008-2017 in Neamţ County shows a fluctuating evolution. The minimum value of 131 thousand tourists was recorded in 2010, with peak values being recorded towards the end of the period, 224 thousand tourists in 2016 and 239 thousand tourists respectively in 2017. The absolute and relative changes of arrivals during 2008-2017, from Neamţ County indicates an average level of arrivals (𝑦) of 170.1 thousand; the absolute mean change of arrivals (𝛥̅ ) recorded 8.77 thou sand; the average arrival dynamics index (𝐼 ̅ ) was 1,045 or 104,5%; the average pace of arrivals dynamics (𝑅) was 4.5%. The evolution of the number of overnight stays was roughly similar to the evolution of the number of arrivals during 2008-2017. The minimum overnight stays were recorded in 2011 by 274 thousand tourists. In 2016 and 2017, the highest values were registered. The absolute and relative changes of the overnight stays in the period 2008-2017 in Neamţ County indicate an average overnight stay (𝑦) of 333 thousand tourists-days; the mean change of overnight stays (𝛥̅ ) recorded 9.77 thousand tourists-days; the average overnight dynamics index (𝐼 ̅ ) was 1,025 or 102,5% and the average overnight dynamics (𝑅) was 2.5%. The evolution of the accommodation capacity in operation in Neamţ County during the analyzed period (2008-2017) shows an increase of 47% registered in 2017 compared to the reference year (2008). The average level of accommodation capacity (𝑦) was 1702.6 thousand seats/year; the average change in accommodation capacity in operation (𝛥̅ ) recorded 71.77 thousand days/year; the average dynamic of accommodation capacity in operation (𝐼 ̅ ) was 1.044 or 104.4%; the average pace of accommodation capacity in operation (𝑅) was 4.4%. In the tourist accommodation structures in Neamţ County, the net use index of the tourist accommodation capacity in operation had an average level of
listelement.badge.access-status Open Access ,
Research regarding quality of some powder milk formulas destined for infants
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Usturoi, Marius-Giorgi; Raţu, Roxana-Nicoleta; Usturoi, Alexandru; Avarvarei, Bogdan-Vlad
In the last period became more and more evident the practice of some great units from food industry to make use at the so-called “double standard” for products which are delivered on own markets and respectively on other countries markets. For these reasons we aimed to study the quality conditions of powder milk destined for infants commercialized in Romania and their concordance with European Union regulations. Investigations were carried out on three powder milk formulas (under 6 month; 6-9 months; over 9 months) imported from Holland, Germany and Poland and consisted in evaluation of physical indicators (acidity, moisture content, solubility and starch presence) as well as for microbiological ones (TNG and Escherichia coli identification), using agreed methodologies. From the obtained data resulted the fact that powder milk imported from Holland had the lowest acidity (15.58 16.09oT), lower with 1.31-6.33% than the one from Germany and with 9.30-18.33% than the one from Poland, but also the lowest moisture content (3.18-3.20%), lower with 8.39-9.68% and respectively, with 19.87-22.5% than at other producers. The best solubility (99.65-99.68%) was also at milk produced in Holland, and the lowest one was obtained for milk imported from Poland (98.17-98.20%). Milk manufactured in Poland had a positive reaction for starch at two from the studied formulas and the one from Germany only at a single formula. Microbiologically speaking, only the formula destined for infants of over 9 months produced in Poland had surpassed the admissible limit for Escherichia coli. In conclusion, we could affirm that powder milk for infants commercialized in Romania fulfil the quality conditions stipulated by EU regulations.
listelement.badge.access-status Open Access ,
Study regarding the capacity of sturgeon adaptation in fishery developments in the moldavian area
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Nașcu, E.G.; Cioran, M.C.; Păsărin, Benone
By approaching this theme, I have been looking at the way and the capability of adapting several species of sturgeons from the family Acipenseridae, Siberian sturgeon - Acipenser baerii, Acipenser gueldenstaedtii, mackerels - Acipenser stellatus and starlet - Acipenser ruthenus, to the environmental conditions of fish facilities in the area of Moldova. The biological material subjected to this study was represented by four species of sturgeon, of which three native species (sturgeon - A. Gueldenstaedtii in 200 pieces with an average weight of 10 gr./p., Mackerels - A stellatus 100 pieces with an average weight of 70 gr./p. and Starlet- A. Ruthenus, 100 pieces with an average of 38 gr / piece), and an imported species (Siberian sturgeon - A. Baers, 200 pieces with an average weight of 30 gr / p). For the study to be relevant, as regards adaptation and acclimatization, sturgeon brood was distributed in a single basin with a total area of 500 m² and a depth of 1.5 m to simulate the same growth conditions in terms of media parameters. Monthly control fishing has been carried out to determine the growth rate and the adaptability of sturgeon brood, but also to correct any possible mistakes during the growing season. The proposed research started on 10.05.2015 and took place for a period of 175 days, unti 31.10.2015, at my private fish farm, called "Valea Morii". At the beginning of May, when the water reached 14°C, after the basin was prior prepared, it was flooded, ensuring a constant flow of water of 50 l / min. The administration of extruded combined fodder was done three times a day, in the morning, at noon and in the evening, at a table marked with a pointer pillar. During the study, environmental conditions were monitored by sampling for chemical analyzes.
listelement.badge.access-status Open Access ,
The effect of peracetic acid in the treatment of Gyrodactylosis in Rainbow Trout
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Athanasopoulos, Liliana; Patriche, N.; Tenciu, Magdalena; Mocanu, Elena; Chihaia, Ira; Nistor, Veta
listelement.badge.access-status Open Access ,
Effect of phyto-additives diets on growth parameters and biochemical composition of carp species (Cyprinus carpio) in recirculating system
(“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2019) Mocanu, Elena; Athanasopoulos, Liliana; Patriche, N.; Tenciu, Magdalena; Jecu, Elena
This paper presents the study results carried out on the development of intervention products in the prevention of carp species (Cyprinus carpio) disease. The food formulations have been supplemented with phyto-additives enhanced with antiparasitic and / or bacteriostatic qualities with direct benefits on the biological material. The biological material which was the subject of the experiment was a native fish species represented by one-year old carp (Cyprinus carpio), grown in the Brates Research and Development Farm, from Galati. The carp species was subsequently introduced in the recirculating aquaculture system, while being fed with different types of fish food. Three types of diets (3 food variants) with different sources of phyto-additives were developed to carry out the experiment. The growth parameters and biochemical compositions were determined in the population initially studied (farm carp) before being introduced in the recirculating aquaculture system and when the experiment was finished after 90 days of development, feeded with three experimental diets containing garlic, seabuckthorn and combinations thereof. The results of the study clearly indicate that the use of phyto-additive dietary supplements determined improved feed conversion rates in the experimental groups compared to the control groups. This confirms the positive effect of phyto-additive supplements, as previously demonstrated by other fish species experiments such as Yambo et al. (2007) and Lyons (2007) [7, 17], with the biological materials reaching the retail market required size much quicker. The existing studies confirm that there is a clear weight gain advantage in different aquaculture species which have been fed with diets containing natural substances which do not pose a risk to fish, human and environmental health (Georgieva K., 2018) [6]. Batch T3, which was fed with a phyto-additive mix (PER = 2.14 and PPV =43.63), was the most efficient protein harvest batch and batch C, which was fed with the standard food (PER = 1.7 and PPV = 35.16) proved to be the most inefficient. Phyto-additive diets which were used in carp nutrition (Cyprinus carpio) influenced favourably the nutritional quality of the specimens involved in the experiment and the previously reported results are consistent with those reported by Gabor E. et al., 2010 [4].

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