September 18, 2025Glavnyj zootehnik (Head of Animal Breeding)

Infl uence of some paratypical factors on the productive longevity of cows

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Authors

ANA. O. Nikiforova YKYu. A. KarmatskikhKurgan State Agricultural Academy by T S Maltsev

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Implication

Observational analysis finds effective insemination age and open days affect productive longevity in Black-and-White cows, suggesting optimal practices.

Key Points

The average longevity of cows in the herd was found to be 1815.7 days, or about 5.04 years.
Cows with a first effective insemination age of 12–13 months showed the longest productive longevity.
The main reasons for cow culling were limb diseases, mammary gland diseases, and gynecological diseases, accounting for 24.7%, 22.2%, and 21.3% respectively.
Maintaining the duration of the open days between 90 and 120 days resulted in a lifetime productivity of 17277.9 kg of milk.

Cite This Study

Nikiforova et al. (2025) studied this question.

synapsesocial.com/papers/68d433b0713b0b5dfea734d7 https://doi.org/10.33920/sel-03-2509-02

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Implication

Observational analysis finds effective insemination age and open days affect productive longevity in Black-and-White cows, suggesting optimal practices.

Infl uence of some paratypical factors on the productive longevity of cows

Discussion

Member takes

Implication

Key Points

Cite This Study

Infl uence of some paratypical factors on the productive longevity of cows

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider