冷冻精液对母猪繁殖性能的影响

Effects of Frozen Semen on Reproductive Performance of Sows

该研究旨在评估猪冷冻精液对母猪繁殖性能的影响。该试验选择体重相近(130±5)kg、健康的经产大白母猪36头,随机分为2组,精液常温保存和冷冻保存组。结果表明,与常温保存精液相比,猪冷冻精液可以显著延长精液保存时间(P<0.05),且精液长时间保存后仍可保持较高的活力(P<0.05);与常温保存精液相比,猪冷冻精液的产仔数较低(P<0.05),且降低产活仔数、健仔数和弱仔数(P<0.05);与常温保存精液相比,猪冷冻精液可提高仔猪初生重和断奶重,但死亡率和腹泻率均无显著差异。研究结果表明,冷冻精液能够显著提高精液保存时间,提高母猪活产仔数和初生重及断奶重,可显著提高母猪繁殖性能。

The aim of this study was to assess the effects of frozen semen on reproductive performance of sows.Thirty-six healthy large white sows with similar body weight(130±5)kg were randomly divided into two groups:semen storage at room temperature and cryopreservation.The results showed that compared with the storage of semen at room temperature,the storage time of frozen semen could be significantly extended(P<0.05),and the viability of semen could still be higher after long-term storage(P<0.05).Compared with that stored at room temperature,the number of piglets born in frozen semen was lower(P<0.05),and the number of piglets born alive,healthy and weak was decreased(P<0.05).Compared with stored semen at room temperature,frozen semen can increase birth weight and weaning weight of piglets,but there is no significant difference in mortality and diarrhea rates.The results of this study showed that frozen semen could significantly improve the storage time of semen,increase the live litter size,birth weight and weaning weight of sows,and significantly improve the reproductive performance of sows.