2021

Permanent URI for this collectionhttps://repository.iuls.ro/handle/20.500.12811/6116

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listelement.badge.access-status Open Access ,
The phenomenon of sexual dimorphism in the context of rearing pigs of modern commercial breeds under conditions of the south of Ukraine
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Susol, Ruslan; Garmatyuk, Katerina; Tatsiy, Oleksandr
Our research aimed to study the effect of sexual dimorphism as a biological phenomenon on growth rates of young stock of different origin under conditions of breeding and commercial herds at the current stage of pig production development in the South of Ukraine. Sexual dimorphism (fm) in pigs of different genetic origin is defined as a ratio of the male to female body weight at a certain age, expressed as a percentage, with fm > 100% for a population with normal sexual dimorphism in body weight and fm < 100% for a population with reverse sexual body weight dimorphism. The following has been observed in young pigs of different origin during early ontogenic stages: boars tend to be heavier than gilts at birth, and such a pattern is maintained during the suckling period; however, this difference is levelled by 60 days of age; it results in trend changes in favour of gilts that outpace boars in terms of body weight at 90 and 120 days of age, which is indicative of their better adaptation to weaning. The difference between sexes at 150 days of age is levelled again, but by 180 days of age there is already a clear trend for greater body weight observed in boars as compared to gilts. Once representatives of the Large White and Pietrain breeds of both sexes reach a year or two years of age amid common pattern of normal sexual dimorphism in body weight, such outperforming of males over females is slightly more prominent for Large White animals as opposed to Pietrain pigs.
listelement.badge.access-status Open Access ,
Understanding the professional development of teachers in digital age
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Brezuleanu, Carmen-Olguța; Sîrghea, Alina
The present paper analyzes the importance of quality education and focuses on preparing teachers to delivery it. Today's society is characterized by its constant technological change. Today's students are increasingly aware of the world of technologies; That is why educators see the need to take advantage of this new source of intrinsic motivation using tools of this type and incorporate them in the development of activities that encourage students to take an active part in their learning processes. The use of these teaching mechanisms allows increasing the possibility of promoting new forms of learning oriented to the development of thinking strategies and interaction with other individuals while stimulating their level of personal activity. The use of technologies allows information to be acquired, processed, stored and disseminated, which contributes to the training of people so that they can adapt to new social challenges. In this sense, it is considered that educator training should be aimed at generating reflections on processes aimed at promoting the pedagogical use of tools, resources, programs, services and environments characterized by the use of technology. The 21st century teacher needs much more than a superficial or mechanical understanding of the fundamental ideas of a discipline. It must also penetrate the deep structures of knowledge and their relationships, as well as the methods of testing, evaluating and expanding them. They need pedagogical skills to make flexible use of knowledge, as this is how they can pay attention to the ideas that arise in the course of the learning process.
listelement.badge.access-status Open Access ,
The impact of COVID 19 pandemic on the GFSI food safety standards schemes audits
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Postolache, Alin-Narcisa; Pop, Cecilia; Ariton, Adina-Mirela; Ciorpac, M.; Crivei, Ioana-Cristina; Sănduleanu, Cătălina; Creangă, Şteofil
The global COVID-19 outbreak has a major effect on food safety management and assurance of food safety in all retailers and manufacturers. The industry understood that COVID-19 outbreak has created and continues to create audit restrictions, which already have severe impact on the certification status of certain sites. As a result, Global Food Safety Initiative (GFSI) released numerous statements focusing on business continuity, while Certification Programme Owner (CPO) and Certification Body’s (CB) would have to comply with requirements of the national regulations applicable to the management of the COVID-19 pandemic. Furthermore, as part of the ongoing support for food businesses facing certification obstacles / inconvenients, GFSI made available the harmonized risk assessment, although till now there are no scientific evidence that the virus is transmitted by food in the context of last months.
listelement.badge.access-status Open Access ,
The assessment of tourist flow in Suceava county’s touristy and agro-touristy boarding houses
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Simeanu, Cristina; Avarvarei, Bogdan-Vlad; Simeanu, Daniel; Usturoi, Alexandru; Păsărin, Benone
The indicators regarding the quantification of the tourist circulation such as the average number of tourists (Nt) in the touristy and agro-touristy boarding houses from Suceava County by types of tourists had average values for the 10 years analyzed (2010-2019), of 117.37 Romanian tourists and 6.64 foreign tourists in the touristy pensions and 143.50 Romanian tourists respectively 9.86 foreign tourists in the agro-touristy pensions. The average length of stay (Ds) in tourist pensions and agro-tourist pensions in Suceava County by types of tourists in the same period analyzed (2010-2019) indicates average values of 2.15 days for Romanian tourists and 2.24 days for foreign tourists in tourist pensions respectively 2.24 days for Romanian tourists and 2.31 days for foreign tourists in agro-tourist pensions. The density of tourist traffic (D) in tourist pensions and agro-tourist pensions by localities in Suceava County in the analyzed period (2010-2019) indicates average values of 0.25 tourists in tourist pensions and 0.47 tourists in agro-tourist pensions.
listelement.badge.access-status Open Access ,
Research on the history of manufacturing pressed cheese in Romania
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Hoha, Gabriel; Usturoi, Marius-Giorgi; Păsărin, Benone; Nistor, Cătălin-Emilian
Pressed cheese is a superior way of valorification on milk and it is one of the most widespread and consumed types of cheese, especially in Europe. The production of this type of cheese has been done since ancient times, in the most varied areas of the world. In our country, the historical documents mentioned that, since 1374, pressed cheese has been produced in the mountain area of Wallachia. If in the past pressed cheese was made from sheep's milk, now it is made from cow's milk. The aim of the paper is to emphasize the old cheese producers in Romania being an important document, especially for processors who want to apply on the quality scheme at European level (PDO, PGI or TSG).
listelement.badge.access-status Open Access ,
Researches on the growth rate of carp brood (Cyprinus carpio, Linne, 1758) variety without scales Moldova-Podu Iloaie grown up in the N-E part of Romania
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Bădilaș, I.N.; Păsărin, Benone
The present research was carried out on brood of carp species (Cyprinus carpio, linne, 1758) variety without scales Moldova - Podu Iloaie grown in the NE of the country. In order to achieve the objectives of this work, four lots of carp brood were formed, which were raised in two farms in Iași County. The differences between the 4 groups consisted in the age of the breeders, in the food administered to them, as well as in the larvae, fry and the resulting brood. The present study was conducted over a period of 180 days with the aim of monitoring the growth performance of carp juveniles, by performing periodic weighing and biometric measurements (three times a month), determining the survival rate and the amount of feed needed for growth of carp brood throughout the analyzed period. All four experimental batches consisted of a similar number of specimens in order to obtain conclusive results.
listelement.badge.access-status Open Access ,
Morphologic characterization of tench (Tinca tinca Linnaeus, 1758) through the classical and modern methodology
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Athanasopoulos, Liliana; Tenciu, Magdalena; Nistor, Veta; Coșarcă, H.M.; Chioveanu, Cristina M.
The results of a profitable fish farming are based in the first place, on the genetic quality of fish (growth rate, prolificity, disease resistance, etc.) The genetic improvement of the fish is a continuous preoccupation at the global and national level, intending to create new, highly productive races and hybrids. The morphologic characterization used as an instrument of work in the evaluation of the morphometric changes of fish, is based on biometry. The study presented achieves a morphometric characterization of the tench through the classic biometric method and tests the possibilities of using 3D photographic method for fish measureing. The results show that the classic biometrics method with a high degree of aggression on fish, can be replaced with the 3D photometric method, used through an application on the mobile phone, that achieves better accuracy, saves time and completely avoids the stress and fish losses.
listelement.badge.access-status Open Access ,
Population structure and growth parameters of Alosa immaculata species, Bennett, 1835 (Pontic Shad) on the Danube sector km 169 - km 197 in 2020
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Stroe, Maria-Desimira; Crețu, Mirela; Ion, G.; Mirea, D.; Savin, Viorica; Tenciu, Magdalena; Patriche, N.
Pontic shad is one of the most important species for industrial fishing and one of the most appreciated fish given its organoleptic qualities, having a particularly fine meat taste and a high percentage of fat. The purpose of this paper is to assess the condition of Pontic shad flocks that arrived in the breeding areas in 2020. The morphometric characteristics, the sex ratio, the age and the growth parameters for the Pontic shad from the Smârdan - Gropeni area, Brăila county were studied. A number of 50 specimens of Pontic shad were examined during April-May 2020. The sex ratio in the analysed group was 56% females and 44% males. The smallest males were 2 years old, measured 26 cm and weighed 150 g, while the largest specimens were 3 years old with a total length of 33 cm and a weight of 275 g. The average length of the males was 30.214 ± 1.608 cm and the average weight was 215.952 ± 35.410 g. The smallest females measured 30 cm, weighed 220 g and were 2 years old and the largest specimens were 5 years old, they had 37 cm and 450 g. The average length of the female specimens was 33.357 ± 1.870 cm and the average mass was 328.571 ± 64.792 g. Analysing the population structure and the Fulton coefficient, we appreciate that in 2020, in the studied breeding areas, the Pontic shad flocks, in which females over 3 years of age predominated, had a good state of maintenance.
listelement.badge.access-status Open Access ,
Study of sensory and microbiological indices of rabbit carcasses
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Mardari, Tatiana; Holban, Rita
The paper presents the results obtained from the assessment of sensory and microbiological indices of rabbit carcasses of different origins. The studied carcasses were purchased from a specialized store, from the market and from a farm. The obtained data indicate an increased bacterial load in the carcass from the market both on the surface and in depth, and the carcass from the specialized store fell into the category of fresh meat according to sensory and microbiological indices.
listelement.badge.access-status Open Access ,
The effects of Mangosteen Pell Extract (Garcinia mangostana l) and minerals as feed suplements usage on performance and gut histology of Sentul chicken
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Widjastuti, Tuti; Abun; Lovita Adriani1
Mangosteen peel extract supplemented with Zn and Cu (MPEm) minerals can be used as a feed for herbal supplements to replace antibiotics for poultry because it contains xanthone, which functions as an antioxidant, anti-inflammatory and antibacterial. The aim of this study was to determine the effect of adding mineralized mangosteen peel extract in the ration on the performance and histological impact of sentul chicken intestines. This study used 100 DOC Sentul chickens, with a completely randomized design of five treatments and four replications. The ration treatments used were P0 (control without MPEm), P1 (control + 60 MPEm / kg ration), P2 (control + 120 mg MPEm / kg ration), P3 (control +180 mg MPEm / kg ration), and P4 ( control +240 mg MPEm / kg ration), given to Sentul chickens up to 12 weeks of age adlibitum. The variables observed were growth performance (feed consumption, final weight, ration conversion) and the impact on chicken intestinal histology. The results of statistical analysis showed the effect of treatment had a significant effect on body weight and ration coversion and histological condition of Sentul chicken intestines. Conclusion This study shows the addition of MPEm until 180 mg MPEm / kg ration has a positive impact on the performance of Sentul chickens and can be used as an alternative to antibiotics in the poultry sector.
listelement.badge.access-status Open Access ,
A role of meal combination of black soldier fly and curcuma on organic chicken production
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Rumokoy, Laurentius J.M.; Tulung, Yohannis R.L.; Toar, Wisje L.
The role of Hermetia illucence or black-soldier-fly (BSF) is known not only to degrade waste material, but also as a source of nutrients for other animals. This article aims to present a part of our research works concerning the role of these insects in producing organic chickens. In this study we combined 1.5% H. illucens larvae (HIL) flour with 3.5% curcuma (Curcuma zanthorrhiza) flour mixed into the ration and supplied to native chickens aged 4 to 8 weeks. The animals were divided in two groups: 28 chickens were placed in a control group and 28 others were placed in a treatment group. The parameters were abdominal fat deposition and carcass weight. The mean value of comparisons of two groups was analyzed by paired t-test. The results showed that both of abdominal fat deposition and carcass weight of the chicken in treatment group was significantly higher than in control group (P <0.01). This condition could be linked to the content of organic molecules; especially to the essential amino acids found in the body of H. illucens larvae which supported the growth process of the animal's body that consumes these feed-additives. In addition, the curcuma bioactive substances play a role in the immune system, palatability of the ration that lead to improve the carcass weight.
listelement.badge.access-status Open Access ,
A comprehensive review on the role of natural antioxidants in meat and meat products
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Kenawi, Mohamed A.
Oxidation reactions during manufacturing, distribution, and storage of meat and meat products result in undesirable physicochemical changes and aromas, which lead to detrimental effects on the product quality. This could be translated into the consumer dissatisfaction and economic loss. One of the most common practices to overcome this issue is the incorporation of synthetic antioxidants. However, the increasing health-consciousness of consumers and their preference for natural additives leads to the search of natural alternatives to synthetic antioxidants. A number of spices and Moringa oleifera leaves extracts have strong antioxidant properties and are explored as potential alternatives to chemical antioxidants in the meat industry. These compounds are classified as Generally Recognized as Safe (GRAS), and their application single or combined with other ingredients have beneficial effects on meat products. This paper provides an overview of the role of natural antioxidants in meat and meat products.
listelement.badge.access-status Open Access ,
Estimation of some quality parameters of honey
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Albu, Aida; Frunză, Gabriela; Zaharia, Roxana; Pop, Mircea-Ioan
Twenty-four samples of honey, from eight Romanian producers from three types (acacia, linden and polyflora-for each producer) were physico-chemical analyzed. The results obtained were variable: 0.2-72.1 mm Pfund for color, 0.038-0.050% for water insoluble matter, 1.4876-1.4980 for refractive index, 15.48-19.52% for moisture, 80.48-84.52% for solids substances, 79.00-83.00 °Brix for total soluble substances and 1.420-1.448 g/cm3 for specific gravity. The values for pH and free acidity were in the range of 3.77-5.32 pH units, respectively 6.13-26.63 meq kg-1; the ash content varied between 0.027% and 0.344% and the electrical conductivity recorded values between 129 μS cm-1 and 775 μS cm-1. The analysis were performed in accordance with Romanian/EU standards. For all honey samples, the Pearson coefficient results indicated strong positive correlation between specific gravity and total soluble substances, between ash and electrical conductivity, respectively a strong negative correlation between moisture and refractive index, between moisture and total soluble substances and between moisture and specific gravity. As a conclusion, the studied honey bee samples correspond qualitatively to the legislation requirements.
listelement.badge.access-status Open Access ,
Nonparametric methodology for the rating evaluation of sustainable rural development in the Republic of Moldova
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Danilov. I.; Stici, Valentina; Racul, A.
The main objective of the paper is to develop the nonparametric methodology for the evaluation of the rural localities development level. To accomplish this task, it is necessary elucidating the weaknesses and threats of sustainable rural development and reflecting them in the Strategy for the Development of Agriculture and Rural Area of the Republic of Moldova for the years 2014-2020. For the realization of this tasks in the research methodology we had done the theoretical foundation of the sustainable rural development by elaborating the survey of households and defining the economic indicators based on the principal component analysis. The elaboration of the nonparametric methodology for evaluating the sustainable rural localities development level is done by identifying theirs rating based on the IPAR_TFP software. It is done a comparative analysis of the districts of the Republic of Moldova according to the sustainable development level in order to identify the economic-social factors share within the basic compartments of the rural area.
listelement.badge.access-status Open Access ,
Asessment of sodium benzoate (E 211) inclusion rate as antiseptic food additive in sauces, fish roe and marinated products
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Radu-Rusu, Cristina-Gabriela; Pop, Mircea-Ioan; Frunză, Gabriela
Six products belonging in two food categories (sauces and fish roe and marinated products) have been investigated in laboratory via spectrophotocolorimetry to identify and quantify the usage of sodium benzoate as food additive with antiseptic-preservative purpose. The inclusion level of E 211 in the first group (mayonnaise) was 68.2-72.7% less than the maximum admitted inclusion level (AIL) (100 mg additive/100g product, while the calculated daily intake through eating a portion (20g) reached 3.6-4.2% out of the maximal admitted daily intake (MADI) for children and 0.9 1.59% of the MADI for adults. The concentration detected in the fish roe and marinated products was 38.67-40.93% lower than the AIL for this food category (150 mg/100 g). Calculus of the daily intake for a serving portion of fish roe (env. 60 g) reached 35.44-39.36% of the MADI for children and 13.28-18.96% for adult consumers. Although the inclusion rates were below the maximal admitted limits, if we cumulate the potential intake of the sodium benzoate from this two food sources with other food preferred by children (sweet treats and sodas), the daily intake dose for this additive present becomes alarming and could endanger the health of young age consumers.
listelement.badge.access-status Open Access ,
Study on waterfowl meat texture – a comparison between the histological and rheological methods
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Radu-Rusu, Răzvan-Mihail; Usturoi, Marius-Giorgi; Pânzaru, Claudia
Among the most used methods in investigating meat structure and texture and its estimated incidence on the sensorial ultimate quality felt by the consumer there is the shear force instrumental measurement using a device with adjustable force and a measurement chamber endorsed with a V gap blade, also known as Warner Bratzler tool. This instrument picks data during sample shearing, in terms of forces necessary to cut the myofibrilar (M force) compound and also the connective compound (C force) of the meat, reported to the elapsed time or distance till total shearing of the sample by the blade. We found out it would be great to compare this instrumental method of muscle toughness estimation with a method belonging to fundamental sciences, using histological and histometrical techniques on the same muscles. The biological material consisted in 20 pieces of breast meat, commercially available as refrigerated duck and goose meat in supermarket (10 samples of duck breast and 10 pieces of goose breast). Out of these material, there were shaped 10 rectangular samples from each breast (10 x 10 = 100 samples per waterfowl species, sized 4 cm length x 1 cm width x 1 cm depth) which were submitted to shear force testing using an Instron type texture analyzer. From the same breast pieces, there were cut 0.5 cm x 0.5 cm x 1 cm samples (5 samples per breast), using the same pattern of muscle fibers orientation like in the previously harvested samples, in order to submit them to paraffin inclusion, microtome cross-section and HEMB coloring, in order to prepare and examine smears using a Motic M230 microscope. Myocytes diameters, cross-section areas were measured and calculated, then reporting to the amount of muscle cell within a 1st order muscle fascicle and to its outer circumference and overall surface, the proportion of pure muscle and connective tissues were derived. The proportions found were compared to those derived from shear forces values readings, knowing the C force instrumentally measured is approx. 0.75-0.9 positively correlated with the connective tissue in muscle. The differences between the instrumental shear force detection of connective tissue and the histological method were quite low and not significantly different. Therefore, it could be stated that the quick instrumental rheological method depicts with accuracy the tissual structure of the muscles, at least at the experimental level we approached.
listelement.badge.access-status Open Access ,
Research on the qualitative analysis of some sources of soft paste cheese
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Rațu, Roxana-Nicoleta; Ivancia, Mihaela; Usturoi, Marius-Giorgi
Through this paper it was proposed to perform the qualitative analysis of two varieties of cheese with soft paste and mold on the outside, from the same producer, namely President and Delaco, Camembert Cheese and Brie Cheese. The qualitative analysis of the Romanian cheese with soft paste and mold on the outside, Năsal Cheese, produced by Napolact, was also performed. The qualitative parameters were established in terms of quality sensory indices, as well as physico-chemical ones. Sensory analysis involved assessing the appearance, color, appearance in section, consistency, taste and smell. The characteristics were in line with the norms imposed by the quality standard, obtaining for all assortments the rating "very good", the lowest score being for Brie cheese from the President - 18.51 points, and the highest score being recorded to the Romanian Năsal cheese assortment - 19.38 points. From a physico-chemical point of view, determinations were made to determine the water content (%), dry matter (%), fat / SU content (%), protein content (%), salt level in the product (% ) and acidity (° T). Following the determinations performed, it was found that all analyzed indices were within the limits of variation recommended by the standard, therefore, the final conclusion of this study is that all products analyzed are of superior quality.
listelement.badge.access-status Open Access ,
Fortification of ecological security of beekeeping in the Republic of Moldova
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Cebotari, Valentina; Buzu, I.
The purpose of this paper was to develop measures to adjust conventional to organic beekeeping, to increase the productivity of bee families and the harvest of entomophilous agricultural crops, for the production of organic beekeeping and agricultural products in the Republic of Moldova, according to EU rules. The scientific researches were carried out during 2011-2019 in the Beekeeping Laboratory of the Institute of Zoology of the Academy of Sciences of Moldova. Scientific research has shown that, in order to ensure the compliance of the environment with the requirements of organic beekeeping, it is necessary to test honey flowers, or pollen collected by bees, on the content of the most common and most dangerous pollutants, such as heavy metals (Pb, Cd) and pesticides (Organochlorine insecticides - Fipronil, Spirodiclofen; Organophosphorus insecticides - Azoxystrobin, Carbendazim, Dimethoate, Chlorpyrifos; Neonicotinoid insecticides - Imidacloprid, Thiacloprid, Thiamethoxam, Clotianidin; Pyrethroid insecticides - Tau-fluvalinate, Deltamethrin, Cypermethrin, Pyrethrin; Triazole fungicides - Bitertanol, Fenhexamide, Diphenoconazole, Mepanipyrim, Cyproconazol; Dicarbosimide fungicides - Cyprodininyl; Acaricides - Amitraza; Herbicides - Glyphosate, Sulfosulfurol, Amidosulfuron, Amitrol, Petoxamide, Pendimetalin). The fortification of the power of bee families and their productive capacity for organic beekeeping is ensured by innovative methods of organic feeding in the periods of poor harvesting in nature with nutritional supplements of organic origin. The conversion of traditional beekeeping into organic beekeeping requires the adjustment of the apiary's logistical infrastructure to the requirements of EU rules, according to EC regulations and directives: no. 1881/2006, no. 834/2007, no. 889/2008, no. 834/2009, nr. 271/2010 and no. 392/2013, as well as the Law of the Republic of Moldova no. 115 of 2005 on organic agri-food production and the Technical Regulation “Organic agri-food production and labeling of organic agri-food products”, approved by Government Decision no. 1078 of 2008. Bee families in organic apiaries are complemented by healthy and vigorous queens, raised directly by organic selection methods, based on strengthening immunity and disease resistance, increasing queen prolificacy and the colony's ability to accumulate bee production in the nest. Organic beekeeping has a positive impact not only on obtaining organic bee products, but also on significantly increasing the harvest of entomophilous agricultural crops, as well as the production of organic agricultural products.
listelement.badge.access-status Open Access ,
Researches concerning the comparison of milk production between cattle of Austrian Brown Cattle (Österreichisches Braunvieh) and Bruna of Maramures breeds
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Gîlcă, Ioan; Gîlcă, Valerica; Pascal, Constantin; Zus, T.; Avram, P.; Gînga, C.
The main aim of this study was to compare the milk performance realized by cattle of Österreichisches Braunvieh breed imported from Austria and the indigenous breed Bruna of Maramures. The analysis was performed into a farm at the first and second lactations. The imported dairy cattle (Österreichisches Braunvieh breed) were compared with contemporaries indigenous breed (Bruna of Maramures) calved in the same period. Both breeds were kept in the same conditions and with the same feeding. The first lactation records were analyzed according to the following linear model: Yij =µ + Hi + Cj + eij. The second lactation records were analyzed according to the following linear model: Yijk =µ + Hi + Cj + Jk + eijk. The difference in milk production between Österreichisches Braunvieh and Bruna of Maramures breeds, at first and second lactations, were not statistically significant. The cattle Österreichisches Braunvieh compared Bruna of Maramures breeds achieved higher fat, protein and lactose percentage at the first lactation (4.25% and 3.99%, 3.32% and 3.26%, respectively 4.74% and 4.62%) and at the second lactation (4.16% and 4.03%, 3.40% and 3.26%, respectively 4.99% and 4.82%). These differences were statistically highly significant (P<0.01).
listelement.badge.access-status Open Access ,
Studies on the productive performance of Transylvanian Naked Neck roosters in the post-caponisation period
(“Ion Ionescu de la Brad” University of Life Sciences, Iaşi, 2021) Cuciureanu, Cipriana-Maria; Usturoi, Marius-Giorgi; Radu-Rusu, Răzvan-Mihail; Burtan, Liviu-Cătălin; Fântânaru, Mircea
The research followed the productive performances of the Transylvanian Naked Neck roosters in the post-caponisation period (from the 6th week of life until the 12th week inclusive). In this sense, two groups of birds were established, of which one experimental LE consisting of 20 roosters and a control lot (LM) with 10 heads. At the age of 6 weeks, the birds from LE underwent the operation of removing the testicles (caponisation) by the method of bilateral laparatomy in the last intercostal space. When the research ends (12 weeks of age of the birds, the roosters in the experimental group recorded a mortality of 70%, a total increase in weight gain of 1124.17 g / head / period, in terms of an average daily consumption of 127, 32 g / head / day and a feed conversion index of 3.81 kg nc / kg increase. The roosters in the control group (uncastrated) registred a mortality rate of 50%, a total increase in weight of 1341.5 g / head / period, an average daily food consumption of 127.08 g nc / head / day and a feed conversion index of 3.23 kg nc / kg increase.

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