Fertilizing Ability of the Texel RaSires Thawed Sperm under Different Modes of Their Use
Ładowanie...
Data
2019
Tytuł czasopisma
ISSN czasopisma
Tytuł tomu
Wydawca
Wydawnictwo Uczelniane Zachodniopomorskiego Uniwersytetu Technologicznego w Szczecinie
Abstrakt
The article presents the results of experimental studies on the effect of the quality of
ram-sires’ thawed sperm during the breeding and non-breeding periods under different modes
of using the breeders. It is established that the acrosome preservation under the mode of using
the ram-sires to receive 4 ejaculates per week compared to 6 and 8 ejaculates during the nonbreeding
period was higher by 3.5 and 6.0%, respectively, and by 2.5 and 5.0 percent during
the breeding period. Kinetic parameters of sperm motion during both periods of seasonal
activity were also higher under the mode of receiving 4 ejaculates per week by 2.6–14.0 percent
on average. The fertilizing ability of thawed sperm from the first insemination of ewes under the
mode of receiving 4 ejaculates per week compared to the above mentioned modes was higher
by 3.2 and 7.2% during the non-breeding period, and by 7.3 and 10.6% during the breeding
period; while fertility at lamb birth – by 1.7 and 3.8%, and by 1.0 and 8.1 percent, respectively.
Opis
Słowa kluczowe
ram-sires, ewes, lambs, modes of use, periods of seasonal activity, thawed sperm, acrosome, kinetic parameters, fertility
Cytowanie
Hrymak K., Stakh V., Sharan M. (2019). Fertilizing Ability of the Texel RaSires Thawed Sperm under Different Modes of Their Use. Folia Pomer. Univ. Technol. Stetin., Agric., Aliment., Pisc., Zootech. 2019, 348(49)1, 87–94. doi: 10.21005/AAPZ2019.49.1.09