Indicators of Productive Longevity of Black-and-Motley Breed Cows With Tethered and Unbonded Methods of Keeping

Chechenikhina, Olga Sergeevna; Лоретц, О Г

doi:10.31279/2222-9345-2018-7-31-55-59

Cited by 5 publications

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“…Numerous diseases can therefore develop during pregnancy and disrupt the development of the fetus. Some researchers believe (Avdeenko et al 2016;Chechenikhina and Loretz 2018) that the observed disturbances in reproductive function of cows with enhanced genetic potential for dairy productivity are associated mainly with significant and inadequate changes in metabolism. Consequently, the way to solve the problem of gestosis in high-producing dairy cattle at the end of pregnancy is to study the role of metabolic disorders that facilitate the development of subclinical ketosis and gestosis in pathogenesis.…”

Section: Discussionmentioning

confidence: 99%

Biochemical criteria for the development mechanisms of various reproduction disorders in dairy cows

Ventsova

Сафонов

2021

Biodiversitas

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Abstract. Ventsova I, Safonov V. 2021. Biochemical criteria for the development mechanisms of various reproduction disorders in dairy cows. Biodiversitas 22: 4997-5002. The article presents the evaluation of peroxide, antioxidant, and hormonal conditions of high-producing red-and-white dairy cows in the physiological and pathological course of pregnancy and the postpartum period. The blood concentration of malonic dialdehyde, stable nitric oxide metabolites, S-nitrosothiols, vitamins E and C, carotin, gonadal, corticosteroid, and thyroid hormones, as well as activity of GPx, GR, SOD, catalase, and ceruloplasmin, were estimated to define major disorder-provoking factors. Analysis of the data shows that ketosis-gestosis syndrome during pregnancy, postpartum metritis, and gonadal dysfunction occur mainly because of oxidative stress in the context of unbalanced peroxide responses and antioxidant protection. Levels of malonic dialdehyde compared to healthy animals increased by 42.3%, 75%, 56.6%, respectively, as also enzyme activities of GR by 26%, 68.1%, 30.1% and catalase by 17.3%, 45.1%, and 23.9%, correspondingly. The endocrine status indicators in the animals with ketosis-gestosis syndrome changed as follows: progesterone levels were 29.5% lower in cows, 17?-estradiol and cortisol were 20.8% and 14.7% lower, respectively. In animals with inflammatory uterine diseases and depressing reproductive glands, progesterone level was 2 and 3 times lower than in healthy animals, the content of cortisol was 17.6% and 25.1% lower, and testosterone decreased by 21.4% and 75.1%, respectively.

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Section: Discussionmentioning

confidence: 99%

Biochemical criteria for the development mechanisms of various reproduction disorders in dairy cows

Ventsova

Сафонов

2021

Biodiversitas

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Productive Longevity of Black-and-White Cows in Different Ecological Areas of the Ural Zone

Chechenikhina

Kazantseva

Stepanova

et al. 2019

Vestn. Novosib. gos. agrar. univ.

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The ecological situation in a particular area has a huge impact on the growth and development of all living organisms. The paper demonstrates a comparative analysis of the productive longevity of Black-and-White cows in the Kurgan and Sverdlovsk regions. It has been established that the yield of cows aged 1-2 lactations at the enterprises of the Kurgan region is 14.8%, and in the Sverdlovsk region - by 20.3% more. The share of cows died within the period from the fifth to the sixth lactation in the Kurgan region exceeds that parameter of the Sverdlovsk region by 18.1%. The most common causes of cow death in the ecological zones are leg diseases (13.9-17.6% of cases). Among the most common reasons for animals death in the Kurgan region are metabolic diseases, low milk productivity, difficult births and complications, osteoarthritis; in the Sverdlovsk region these reasons are seen as diseases of the breast, digestive organs, deficiencies of the exterior. As a result of infectious diseases, the animals in the Kurgan region were eliminated in the amount of 3.0%, and in the Sverdlovsk region they were not eliminated. Cows grown in the Kurgan region with lifelong milk yield of up to 5 thousand kg of milk had an annual milk yield of 2205.0 kg, which is 9.8% higher than in the same group of animals in the Sverdlovsk region. The difference in this case varied from 172.0 to 2821.0 kg of milk per lactation on average.

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The productive longevity of cows depends on the livestock-keeping method

Belova

Pleshkov

2023

Vestn. Novosib. gos. agrar. univ.

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In the article, the authors presented an analysis of the influence of the methods of keeping the breeding stock of Kuzbass cattle on the period of its productive use and life expectancy. The object of the study was the breeding stock of cattle breeding and commercial enterprises. With a tethered method of keeping, the economical use of cows in the breeding enterprises of the region amounted to 2.75 ± 0.27 lactation, or 1002.70 ± 45.19 days, with an average life expectancy of 1835.60 ± 95.42 days. In commodity farms, the economical use of cows is an average of 2.35±0.20 lactations, or 860.70±41.80 days, with an average life expectancy of 1563.67±85.30 days. An analysis of the loose keeping of the cattle breeding stock showed that the period of economic use in breeding organizations is 2.45 ± 0.19 lactations (896.50 ± 39.43 days), and the average life expectancy is 1693.0 ± 83.34 days. The period of economic use of cows in the commercial farms of the region using loose housing averaged 2.16±0.20 lactations (794.50±38.53 days), and the average life expectancy was 1688.93±91.50 days. In the winter, the broodstock on tie-down housing has an advantage over the region’s farms in terms of economic use over yearround loose housing by 0.24 lactations (86.20 days).

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Indicators of Productive Longevity of Black-and-Motley Breed Cows With Tethered and Unbonded Methods of Keeping

Cited by 5 publications

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Biochemical criteria for the development mechanisms of various reproduction disorders in dairy cows

Biochemical criteria for the development mechanisms of various reproduction disorders in dairy cows

Productive Longevity of Black-and-White Cows in Different Ecological Areas of the Ural Zone

The productive longevity of cows depends on the livestock-keeping method

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