RIULS

Repository of Iasi University of Life Sciences, ROMANIA

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The mission of the University’s institutional repository is to manage, preserve and disseminate, in open access, the academic and institutional output of the university’s academic community. It also aims to promote values and personalities belonging to Romanian agricultural science, by storing digitized versions of rare books and manuscripts from its collections.

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Recent Submissions

  • listelement.badge.dso-type Item , listelement.badge.access-status Open Access ,
    Chemical composition of milk at carpathian goats under semi-intensive farming conditions
    (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020) Anghel, Andreea; Nadolu, Dorina; Busuricu, Florica
    The studies were performed on milk samples collected from 178 Carpathian females belonging to a farm from southeastern Romania. The females were grazed daily, benefiting from natural pasture, specific to the Dobrogea area. Before each milking, 100 g of special granules for goat's milk were administered. After weaning (April), the goats were milked twice a day for 5 months. Milk production control was carried out monthly, after the weaning of the kids, for three consecutive months, starting with May. For this, the amount of milk milked in the morning and in the evening was weighed individually. The computation of the total individual production was calculated by applying the Fleischmann formula in the case of milking the goat after a period of lactation, when the first milking is done after the flat-rate date of the end of lactation. For primiparous, the total individual milk production was between 124.35 kg and 199.76 kg with an average of 164.93 kg/head/day. At multiparous, the average total individual milk production was 168.32Kg. Biochemical parameters (fat, protein, lactose) were analyzed by ultrasonic method in a standardized analyzer for goat's milk. At primiparous, the fat concentration reaches a maximum of 3.12 g% in July, and at multiparous 3.36g% in June. The protein concentration had values between 2.87g and 3.08g% at primiparous and between 2.90g% and 3.22g% at multiparous. The results of our analyzes recorded a maximum of 4.36% for lactose in June for primiparous and 4.58g% for multiparous. The percentage of mineral substances varies between 0.65 g% and 0.67 g% at primiparous and between 0.64 and 0.65 g% at multiparous.
  • listelement.badge.dso-type Item , listelement.badge.access-status Open Access ,
    Evaluation of potential yeast and fungi to improve quality of coffee pulp as feed sources for animal
    (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020) Mayasari, Novi
    This study evaluated the potential yeast and fungi to enhance quality of fermentation coffee pulp as a fiber source in diet of livestock. There were different yeast and fungi has been used on fermentation coffee pulp such as Aspergillus niger, Trichoderma viride, Rhizopusoryzae, Pleoratusostreatus, and Saccaromyces cerevisiae. It is known from several existing data that the treatment of the fermentation will influence the quality of fermentation. Different doses, single or multi culture of fungi and duration of fermentations affected the quality of coffee pulp fermentation. Type of coffee such as Arabica and Robusta coffee also affected fiber fraction of fermentation coffee pulp. The results showed that there were variations on fiber fraction such as lignin, cellulose, hemicellulose and tannin with different treatment of yeast or fungi fermentation. However, the variance of those fiber fraction seems similar after fermentation processes. Lignin and tannin were decreased by the fermentation. Meanwhile, hemicellulose and cellulose were increased after fermentation. Other benefits of fungi or yeast fermentation of coffee pulp increased protein content and reduced caffeine levels. Moreover, the supplementation of fermentation of coffee pulp did not give any negative effect on rumen pH, volatile fatty acid, NH3, and digestibility. In conclusion, the yeast and fungi had big advantages to improve the quality of coffee pulp waste especially on fiber and protein content in the diet of animals.
  • listelement.badge.dso-type Item , listelement.badge.access-status Open Access ,
    Research regarding the quantitative production of meat in Ross-308 chickens under the use of natural biostimulators
    (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020) Atudosiei, Gabriela; Teodorescu, Alina; Roşca, D.C.; Radu-Rusu, Răzvan-Mihail; Usturoi, Marius-Giorgi
    Meat processing involves several successive transformations, the first consisting in obtaining the carcass, and the second ensures the separation of the carcass from by-products (bones, skin, feathers), the meat being used in the manufacture of the products. In this paper we aim to analyze the quantitative meat production obtained from the chicken broiler Ross-308 The biological material was 100 commercial hybrids of ROSS-308 chicken. The birds were reared according to the species-specific technology, and the actual determinations were performed on 20 individuals (10 males and 10 females) who were slaughtered at the age of 42 days. During the research, one of the indicators followed was the live weight, by weighing the flock of birds, using an electronic scale. After slaughter, the poultry carcasses were weighed fresht, but also after refrigeration (24h at 4°C). With the data provided, the slaughter yield and the share of participation in the carcass composition of the cut portions were calculated. The data were statistically processed using the Anova (Analysis of variance) program. After weighing the studied males, an average weight of 2622.98 g was found, and in females, the average recorded weight was 2480.04 g. and 76.67% on refrigerated carcasses). In the case of females, slightly lower values were obtained, of 74.28% for the cold yield and 75.68% for the hot yield; recorded the best performance in the thighs (21%) and in the chest (24%). Females had higher values in the case of back, which occupied about 49% of the total carcass. In both sexes, the wings had a participation rate of about 9%. Due to the qualities that poultry broiler meat presents, there is a growing demand for this type of meat on the world market, therefore, such research is of continuous interest. The rearing of the Ross-308 broiler in an intensive system has wide development perspectives, if an optimal technology is used, but also a good quality biological material.
  • listelement.badge.dso-type Item , listelement.badge.access-status Open Access ,
    Studies on improving the performance in rearing the Ross-308 broiler by using natural biostimulators
    (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020) Atudosiei, Gabriela; Teodorescu, Alina; Roşca, C.; Radu-Rusu, Răzvan-Mihail; Usturoi, Marius-Giorgi
    In recent decades, more and more research has been done worldwide on the use of biostimulating products as dietary factors to increase weight gain and improve feed conversion to broiler chickens, as well as to preserve their condition. health and obtaining high quality carcasses. In this paper we aim to analyze the productive performance of the Ross-308 hybrid. The biological material was represented by 100 commercial hybrids of ROSS-308 hens. The birds were divided into 2 batches of 50 individuals each (LM-control batch and LA-batch where the "Esstence" biostimulator was administered) and reared according to the specific technology. species, from the age of one day and up to 42 days. During the research, one of the morphological indicators followed was body weight, and at the end of the week, the daily feed gain was calculated. Other indicators followed were the average daily consumption and the food conversion ratio. Finally, the data were statistically processed using the Anova (Analysis of variance) program. At the middle of the experiment (end of the 3rd week) the first batch (LM) had an average weight of 975.2g and the 2nd batch analyzed (LA), at this point in life exceeded the threshold of 1 kg, having an average body weight of 1119.3 g. After the first week of life, the chicks in the control batch (LM) achieved an average daily gain of 21.73 g / head / day. The birds in this series had a total increase (42 days), an increase of 54.91 g / head / day. For the second batch (LA), the results were slightly better. Thus, the weight gain started from a value of 23.87 g / head / day (after the first 7 days), the average for this parameter being 63.60 g / head / day. At the end of the experiment, the average of the first batch was higher compared to that obtained in the second batch (LM> LA) 1.66 kg c.f./kg increase> 1.22 kg c.f./kg increase. The final conclusion of our study is that the use of a good quality biological material, ensuring optimal microclimate conditions and good quality food, but also the administration of biostimulators helps to achieve good performance in growing Ross-308 hybrids for the production of meat.
  • listelement.badge.dso-type Item , listelement.badge.access-status Open Access ,
    Studies regarding the chemical composition of eggs provided by the gray Guinea fowl Numida meleagris
    (“Ion Ionescu de la Brad” University of Agricultural Sciences and Veterinary Medicine, Iaşi, 2020) Teodorescu, Alina; Atudosiei, Gabriela; Roşca, D.C.; Radu-Rusu, Răzvan-Mihail; Usturoi, Marius-Giorgi
    Consumption of eggs and poultry is very important for the proper functioning of the body. Guinea fowl eggs are seen as a dietary product due to the high digestibility of all nutrients. Today, in order to prevent the appearance of diseases or illnesses, for the educated consumer, healthy eating appears as a problem of significant interest, both socially and economically. Therefore, the objective of the research was to evaluate the chemical composition of the guinea fowl eggs from both the extensive and intensive system. The indicators followed were represented by the water and dry matter content, the amount of protein, the lipid content, the amount of microelements and macroelements and the amount of mineral substances. Guinea fowl eggs are a complete food with high biological value, so the intensive breeding of these birds can become a significant sector in poultry practice.