Determination of Animals’ Individual Resistance to High Solar Activity

Golovan, V. T.; Yurin, D.A.; Kucheryavenko, A. V.

doi:10.3103/s1068367418020064

Cited by 2 publications

(3 citation statements)

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“…A new method for determination of individual resistance of animals to the thermal stimulus was developed [19]. Highly resistant cows better maintain homeostasis and show increased milk productivity as compared to the less resistant.…”

Section: Introductionmentioning

confidence: 99%

Resistance of Kalmyk cattle breed to high ambient temperatures of the highlands of the North Caucasus

Yurin,

Gneush,

Bogatyreva

et al. 2024

BIO Web Conf.

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The purpose of the research is to establish indicators of heat resistance and study the growth of Kalmyk cattle youth in different natural, climatic, organizational and technological conditions in the highlands of the Kabardino-Balkarian Republic. The investigations were carried out in LLC «Dargan» (Chereksky district, in village Gerpegezh) and LLC «Malka» (Zolsky district, in village Malka) of the Kabardino-Balkarian Republic of the Kalmyk breed bulls during the period of grazing (from 7 to 12 months). The highest values of the heat resistance index and tolerance coefficient were recorded at the beginning of the grazing period in species of both farms, when the ambient temperature during the day was within comfortable limits for the species as a whole. Subsequently, the heat resistance indicators were decreased by the middle of the analyzed period of detention, which is explained by the temperature stress for the body of the experimental animals. However, temperature conditions and resistance were restored to their original values for them by the end of the experiment. Inter-farm divergences in growth intensity in age period of 7-9 months were 31 g (P<0.95), 9-12 months - 65 g (P<0.999) and for the entire period - 52 g (P<0.99). The largest absolute increase in live weight over the analyzed period was distinguished by bulls from LLC «Malka», which were under other conditions, recorded the lowest feed costs per 1 kg of live weight gain. Thus, the differences in the cost of energy feed units in comparison with individuals from «Dargan» LLC were 0.18, digestible protein was 11 g.

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Section: Introductionmentioning

confidence: 99%

Resistance of Kalmyk cattle breed to high ambient temperatures of the highlands of the North Caucasus

Yurin,

Gneush,

Bogatyreva

et al. 2024

BIO Web Conf.

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“…The company gets the sexed seed from the best milkbreeding bulls. The seed includes at least 90% spermatozoids, which carry female sex chromosomes [3]. Using of seed, separated by sex, gives an opportunity to get 80% heifers from all the calves received, which in turn, allows to renew the herd with the first heifers much quicker and if necessary to increase the herd annually [4,7].…”

Section: Introductionmentioning

confidence: 99%

“…It connected with number of researches and their database, which shows that real advantages of this very method reduces the percentage of stockability in cows. Therefore, studying of influence the sexed seed using for reproductive qualities of cows is relevant [3].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the herd reproduction program with sexed seed in a large agricultural enterprise

et al. 2021

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For diary herding, milk production is one of the determining factors of effective actions. That is why it’s very important to get a high percentage of heifers into a processing of herd reproducing, which became possible after introduction of sexed seed – sperm, which cells are divided concerning the sex. Using of sexed seed allows us to repair the herd more quickly, and also to increase the realization volume of heifers by breed enterprises, which very good influence on their profitability. Provided of researching analyses showed us, that using the seed divided by sex into a large agricultural enterprise, the fertility rate is lower on 5-8%, than we will use the traditional seed, and female calves are much higher.

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Determination of Animals’ Individual Resistance to High Solar Activity

Cited by 2 publications

References 0 publications

Resistance of Kalmyk cattle breed to high ambient temperatures of the highlands of the North Caucasus

Resistance of Kalmyk cattle breed to high ambient temperatures of the highlands of the North Caucasus

Evaluation of the herd reproduction program with sexed seed in a large agricultural enterprise

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