Beef Productivity of Limousine Cattle at Stable Keeping

Vlasova, I.A.; Ventsova, Inna; Vostroilov, Alexander; Сафонов, В. А.; Golubtsov, Andrey

doi:10.3844/ajavsp.2020.266.274

Cited by 10 publications

(8 citation statements)

References 11 publications

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“…In our opinion, by selecting the optimal concentration of Montanide Gel 01, it is possible to achieve maximum stimulation of the body’s immune system without increasing the reactogenicity of the vaccine. The data obtained are to some degree consistent with the results on the production of vaccines reported elsewhere, describing particularly high adjuvant activity of Montanide Gel 01 in antiviral vaccines [ 15 - 17 ]. However, no protection is absolute and immune responses vary between different individuals of the same vaccinated population [ 18 ].…”

Section: Resultssupporting

confidence: 91%

“…The data obtained are to some degree consistent with the results on the production of vaccines reported elsewhere, describing particularly high adjuvant activity of Montanide Gel 01 in antiviral vaccines [15][16][17]. However, no protection is absolute and immune responses vary between different individuals of the same vaccinated population [18].…”

Section: Imd 50 Doses Of Vaccine For Animals Diagnosed With Aujeszky's Diseasesupporting

confidence: 90%

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Inactivated vaccine against Aujeszky's disease

Kondibaeva¹,

Yespembetov²,

Abeuov³

et al. 2021

Vet World

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Background and Aim: The Aujeszky's disease, also known as Pseudorabies, remains one of the most problematic fulminant diseases in domestic animals, affecting the central nervous system. The study aimed to investigate the effect of an inactivated vaccine against Aujeszky's disease based on "Kordai" virus strain. Materials and Methods: To test the inactivation of the "Kordai" strain (grown by the roller method in VNK-21/13 cell culture with an infectious titer of at least 7.5 lg TCD50/ml) which is causative of Aujeszky's disease, next-generation teotropin and propolis preparations were used in concentrations of 0.1%, 0.08%, and 0.04%. Results: As a result of comparative studies on the optimization of parameters for inactivating the "Kordai" virus strain, it was established that teotropin is a more effective inactivant than propolis. At the same time, the optimal final concentration of teotropin for inactivation was 0.1%, along with a reaction medium temperature of 37°C, pH of 7.4-7.6, and duration of inactivation of 14 h. The titer of virus-neutralizing activity (VNA) of antibodies at the pH (neutralization reactions) in vaccinated sheep of 10-12 months of age was 7.5±0.3, Ig TCID50/ml (tissue culture infectious dose 50%), and 3.5±0.3 in the cell culture VNK-21/13 (culture of Syrian hamster kidney cells). Conclusion: To determine colostral immunity in newborn lambs, the method of metabolic status correction was used to vaccinate lambs obtained from immune sheep 4 months after birth. The results showed that lambs obtained from immune sheep had high VNA titers. A sustained immune response in vaccinated animals was obtained after double vaccination.

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Section: Resultssupporting

confidence: 91%

Section: Imd 50 Doses Of Vaccine For Animals Diagnosed With Aujeszky's Diseasesupporting

confidence: 90%

Inactivated vaccine against Aujeszky's disease

Kondibaeva¹,

Yespembetov²,

Abeuov³

et al. 2021

Vet World

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“…This breed is well adapted to Russian conditions. The animals of this breed have excellent meat qualities confirmed by high growth rate, ability to build up muscle tissue for a long period without intensive fat deposition and therefore are characterized by low fat content in carcass and higher yield of muscle tissue [15].…”

Section: Related Workmentioning

confidence: 99%

Evaluation of meat productivity of Limousin breed cattle in biogeochemical conditions of Voronezh region

Vlasova

Востроилов

Сафонов

2022

IOP Conf. Ser.: Earth Environ. Sci.

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The main and economically priority vector of development of agroindustrial complex of the Russian Federation in the current realities is sustainable production of agricultural products in volumes that not only meet the needs of the population, but also create a certain reserve, able to offset the negative effects of forced production downturns and crises. Beef is a high-quality source of protein in human nutrition. In the conditions of protein diet deficiency the question of increasing the volumes of animal production and, in particular, beef as one of the main traditional components of human diet acquires the special urgency. In this connection, we have set the task to study the indicators of beef productivity of Limousin cattle under the conditions of stabling system in a farm located in the biogeochemical conditions of Voronezh region of the Russian Federation. The researches made show that the meat productivity of cattle of Limousin breed differs significantly in pre-slaughter weight of bulls and heifers amounted 621.33 kg and 449.67 kg, and the slaughter weight of steers and heifers was 385.37 kg and 272.30 kg. The slaughter yield of steers was quite high and was 61.98±1.06%, while that of heifers was slightly lower and was 59.90±0.58%. The most interesting is the comparative evaluation of meat quality in interbreed and age aspects according to its dry matter and water content, protein and fat content, as well as other indicators characterizing the product quality, so the ratio between protein and fat in meat, the water-holding capacity of meat proteins were studied to determine the manufacturability and meat quality. Also, indicators characterizing the chemical composition of the longest muscle of the back were determined.

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“…Many researchers [7,[14][15][16][17] described probiotics as an effective natural strategy for improving animal health and productivity. In animals, probiotics can perform immunomodulatory functions even in low doses, proving a close relationship between the immune status of the body and the microflora population in the gastrointestinal tract.…”

Section: Introductionmentioning

confidence: 99%

Immunomodulatory effect of the combined use of Vetosporin Zh probiotic and Gumi-malysh biologically active additive

et al. 2021

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Background and Aim: Various means and methods, including probiotics and biologically active additives, have been developed and proposed for production to increase the immunobiological reactivity of the body, regardless of the etiology of its decrease. This study aimed to find out the immune status of calves during the preweaning period in association with Vetosporin Zh, Normosil, and Gumi-malysh. Materials and Methods: The research object was 30-day-old calves of black-and-white Holstein breed. The calves were divided into four groups of 20 heads each. The calves of the first, second, and third experimental groups were treated with Normosil probiotic, Vetosporin Zh probiotic, and Vetosporin Zh probiotic in combination with Gumi-malysh, respectively. The calves in the first, second, and third experimental groups were treated with Normosil probiotic, Vetosporin Zh probiotic, and Vetosporin Zh probiotic in combination with Gumi-malysh, respectively. Results: On days 10 and 21 of the experiment, animal blood was collected to determine the content of total protein, protein fractions, immunoglobulins, T and B lymphocytes, phagocytic activity and a phagocytic number of neutrophils, and circulating immune complexes (CIC). The combined use of Vetosporin Zh probiotic (dose, 20 mL) with Gumi-malysh (dose, 30 mL) per animal for 30 days in 1-month-old calves contributes to the increase in the number of T lymphocytes, B lymphocytes, and immunoglobulin A (IgA) and immunoglobulin G (IgG) levels by 2.9%, 3.8%, and 0.96 and 2 g/L, respectively, while reducing the immunoglobulin M (IgM) level; an increase in the phagocytic activity of blood neutrophils and the phagocytic number by 7% and 1.8%, respectively, as well as a decrease in the CIC level with similar indicators in calves that were not treated with the agents. Conclusion: The method used in the current study helps increase the number of T and B lymphocytes, increase IgA and IgG levels while reducing IgM levels, and increase the phagocytic activity and a phagocytic number of blood neutrophils, as well as decrease the CIC level.

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Beef Productivity of Limousine Cattle at Stable Keeping

Cited by 10 publications

References 11 publications

Inactivated vaccine against Aujeszky's disease

Inactivated vaccine against Aujeszky's disease

Evaluation of meat productivity of Limousin breed cattle in biogeochemical conditions of Voronezh region

Immunomodulatory effect of the combined use of Vetosporin Zh probiotic and Gumi-malysh biologically active additive

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