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Optimal voluntary waiting period for highly productive cows in herds of more than 3000 milking heads
Autor:
Garanin Maksim, Pereryadkina Svetlana, Lisichenko Galina, Kocharyan Valentina, Bukaeva Yuliya
Publikováno v:
E3S Web of Conferences, Vol 463, p 01042 (2023)
The study showed that fertility at the first artificial insemination (AI) is 9% higher if the voluntary waiting period (VWP) is 80 days compared to 60 days. However, in the second IO, the level of fertilization in both cases remains the same and is 4
Externí odkaz:
https://doaj.org/article/c878ba3a77ab40c183c1c5a21965f093