Scientific Journal of KubSAU

Polythematic online scientific journal
of Kuban State Agrarian University
ISSN 1990-4665
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Name

Nimbona Constantin

Scholastic degree

Academic rank

Honorary rank

Organization, job position

Kuban State Agrarian University
   

Web site url

Email

cosnim120@yahoo.fr


Articles count: 5

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277 kb

USING MILK UREA CONCENTRATION AS STRATEGY TO IMPROVE THE EFFICIENCY OF NITROGEN USE AND REDUCING NITROGEN LOSSES IN COMMERCIAL DAIRY HERDS

abstract 1491905032 issue 149 pp. 138 – 148 31.05.2019 ru 67
This prospective study was conducted on 10 commercial dairy herds, over one year on milk urea monitoring, determination of diets characteristics effects on MU concentration and on assessment of MU concentrations as a predictor of N utilization and urinary N excretion. Milk samples were collected twice every month and analyzed for urea concentration using a colorimetric procedure. Representative feed samples were also collected on the same day of milk collection. Feed samples were characterized and their concentrations of protein digestible in the intestine and net energy for lactation were calculated according to the French system as well as PDI requirements. Average of milk urea concentrations range is 25.0 - 32.0 mg/dl. A significant positive association (p
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EMBRYO PRODUCTIONS WITH CONVENTIONAL AND SEXED SEMEN USE IN "KUBAN” AGRO COMPANY

abstract 1572003010 issue 157 pp. 127 – 135 31.03.2020 ru 9
At the Kuban Agricultural Association OJSC, Ust-Labinsky District, Krasnodar region, a research has been carried out on obtaining embryos from cows and heifers of donors using sexed and conventional frozen seed. In the first experiment, 159 doses of ordinary frozen semen from 3 different bulls were used to inseminate 57 cows and heifers - donors. In the second experiment, 63 doses of normal frozen semen from 3 different bulls were expended for insemination of 21 cows and heifers of donors after treatment with super ovulation for 9 days. On the 7th day after insemination, the embryos were collected in experimental cows and heifers of the donors, their number was counted, and the quality was evaluated. As a result of the study, it observed that the obtained embryos from each donor were different in quantity and quality. The number of embryos, using traditional sperm, was from 1 to 42, and on average per cow 13.68 ± 2.45. Among them, 8.40 ± 1.08 embryos belonged to the first class, 0.35 ± 0.45 - to the 2nd class; 4.90 ± 0.94 to the 3rd class, as well as 4.90 ± 0.94 embryos were degenerated. After donor insemination with sexed sperm, 1 to 22 embryos were obtained, an average of 9.01 ± 4.03. Including 4.92 ± 3.04 embryos belonging to the 1st class, 1.31 ± 1.02 - of the second class, 0.28 ± 0.27 - of the 3rd class and 2.48. ± 0.71 degenerated. The results showed that the average number of embryos obtained using conventional sperm is larger compared to the use of sexed semen, regardless of the donor cow or heifer. Conclusion: the use of traditional frozen semen allows us to get more and better quality embryos from cows and heifer donors
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MAINTENANCE AND USE OF BREEDING COWS OF THE HOLSTEIN BREED IN THE CONDITIONS OF INTENSIVE TECHNOLOGY

abstract 1552001014 issue 155 pp. 178 – 193 31.01.2020 ru 8
Considering the fact that in Russia the development of dairy cattle breeding is based on increasing milk production in terms of providing this product, the further increase in milk yield and quality of cow's milk remains important. Some farms in Russia, including the Krasnodar region, have reached high milk production rates in whole herds of up to 12-13 thousand kg of milk per cow. Today it is important to “propagate” such farms. To achieve this goal, it is necessary to study their livestock breeders experience, approaches to the selection of cattle (calves, heifers, cows), to form herds of animals that can get high milk yield under the conditions created for them. The farm in which we conducted our scientific research is distinguished by the fact that much attention is paid to maintaining a high level of breeding and breeding, as well as to creating optimal factors for keeping, feeding and caring for animals. Agroholding Step includes 5 farms in divisions: one in the Kuban Step, two in public company of shareholders “Rodina” and two in shareholder company “Novoplastunovskaya” Three farms are located in the village of Chelbasskaya, where the cowsheds were reconstructed and equipped with new equipment. In the village of Novoplastunovskaya, new buildings were built in the territory of the old farm, and the 4th farm was built in 2018 in the new territory. All farms contain highly productive breeding cows of the Holstein breed. The Russian information programs “Selex-Dairy Cattle” and Israeli program “AfiFarm” were introduced. We have studied zoohygienic conditions in various buildings of dairy farms in the spring, where animals are constantly kept. The results obtained indicate that the cows are kept in comfortable conditions, allowing them to eat a balanced diet in accordance with their needs and to avoid many stresses what is important for the secretion of milk. Indicators of genetic potential for milk production of cows and the effectiveness of its manifestation are also determined
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PRÉVALENCE ET IMPACT ÉCONOMIQUE DES STRONGLES GASTRO-INTESTINAUX DES CAPRINS AU NORD DU BURUNDI

abstract 1562002006 issue 156 pp. 98 – 110 28.02.2020 ru 8
Une enquête et une étude parasitaire des caprins ont été réalisées dans les trois provinces du Nord du Burundi appartenant aux régions naturelles de Bweru, Bugesera, Buyenzi et Mugamba. L’étude montre que le système extensif combinant le gardiennage et l’attachement au piquet vient en première positon (44%) par rapport au pâturage au piquet (28%). Les résultats montrent que 75,84% des éleveurs font l’élevage des caprins spécialement pour les vendre, 22,15 % pour la production du fumier et 2,01% pour l’autoconsommation. L’enquête sur 424 chèvres pendant la saison pluvieuse et sur 538 chèvres pendant la saison sèche effectuée sur 150 ménages montre une dominance des caprins de race locale (78,4%) par rapport aux races exotiques et croisées (21,6%). L’analyse coprologique a montré la présence des strongles gastro-intestinaux de genres Ostertagia, Chabertia, Haemoncus, Paramphistomum, Nematodirus, Bunostomum, Dictyocaulus, Oesophagostomum, Trichostrongulus, Cooperia, Diclocoelus et le genre Toxocola. Les genres Ostertagia et Chabertia étant dominants avec 20.10% et 18.76% respectivement. Les jeunes chèvres de moins d’une année étant significativement plus infestées par les strongles gastro-intestinaux que les chèvres adultes (p< 0.05). Ce parasitisme gastro-intestinal affecte négativement l’économie des éleveurs par des dépenses liées aux traitements. Il se traduit aussi par une réduction de leur croissance voire une mortalité lors d’infestation forte et influence négativement sur le gain du poids de l’animale et sa croissance en générale (p=0.001)
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ECONOMIC FEATURES OF BREEDING THE GEENITORS CATTLE OF HOLSTEIN BREED IN THE CONDITIONS OF THE KRASNODAR REGION

abstract 1582004006 issue 158 pp. 68 – 77 30.04.2020 ru 8
The problem of providing people with food remains relevant in connection with the growth of the world's population. According to statistics, by the 21st century, the production of all types of food increased by more than 20%, while at the same time, the consumption of food products per capita increased by only 6%. In Russia, the production of food products, including dairy products and beef, is not growing at an insufficient pace. In this regard, in order to stabilize and develop the livestock industry in our country, it is important to improve the material and technical base for transferring it to the intensive path of development - maximum production with the lowest labor and material costs. Based on the achievements of scientific and technological progress and a systematic approach to the production of high-quality products, an intensive direction in the livestock industry should be based, the use of highly efficient milk production technologies, based on the achievements of science and technology, and the management of cost-effective dairy cattle breeding. Of particular strategic importance is the effective improvement of the breeding qualities of cattle and the creation of conditions for the formation and effectiveness of the manifestation of genetic capabilities in animals. Currently, the problem in the livestock sector in Russia is the insufficient provision of the feed base and the introduction of rations in the technology that are adequate to the needs of highly productive animals. Statistics show that in the Russian Federation the manifestation of the genetic potential of livestock is only 60-70%. To solve this problem, fodder production should be improved; the existing set of measures should be effectively used in the development of progressive methods of forage preparation and feeding rationing, taking into account the physiology of animals. Livestock farmers of PJSC "Rodina" of the Kanevsky district of the Krasnodar region, having the status of a breeding plant for cattle breeding of the Holstein breed, reached rather high indicators for improving the genotype of dairy cattle and the effectiveness of its manifestation
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