Conception Rate and Litter Size in Multiparous Sows after IntrauterineInsemination Using Frozen-Thawed Boar Semen in a Commercial Swine Herd inThailand

Journal of Veterinary Medical Science

Em-On OLANRATMANEE¹  Kampon KAEOKET²  Panida CHANAPIWAT²  Padet TUMMARUK³ 

[1] Faculty of Veterinary Medicine, Rajamangala University of Technology Tawan-ok, Chonburi 20110, Thailand;Semen Laboratory, Department of Clinical Sciences and Public Health, Faculty of Veterinary Science, Mahidol University, Salaya, Nakorn-pathom 73170, Thailand;Department of Obstetrics, Gynaecology and Reproduction, Faculty of Veterinary Science, Chulalongkorn University, Bangkok 10330, Thailand

关键词: conception;    frozen semen;    litter size;    reproduction;    swine;   

DOI  :  10.1292/jvms.14-0069

学科分类：兽医学

来源: Japanese Society of Veterinary Science

【 摘 要 】

References(22)Cited-By(2)The aim of the present studywas to determine the conception rate and litter size in sows after fixed timeintra-uterine insemination using frozen-thawed boar semen in a commercial swine herd inThailand. Sixty-nine Landrace multiparous sows were randomly allocated into two groups,including control (n=36) and treatment (n=33). The control sows were inseminated withextended fresh semen (3 × 109 motile sperm/dose, 100 ml) at24, 36 and 48 hr after the onset of estrus. The treatment sows were inseminated withfrozen-thawed semen (2 × 109 motile sperm/dose, 20 ml) at 24and 36 hr after induction of ovulation by human chorionic gonadotropin. All inseminationswere carried out by using an intra-uterine insemination technique. The time of ovulationwas determined by using transrectal real-time B-mode ultrasonography. The conception rate,farrowing rate, total number of piglets born/litter (TB) and number of piglets bornalive/litter (BA) were evaluated. The sows inseminated with extended fresh semen yield ahigher TB (10.8 versus 9.0 piglets/l, P=0.015) andtended to have a higher conception rate (88.9% versus 75.8%, P=0.150)than sows inseminated with frozen-thawed semen. In conclusion, insemination usingfrozen-thawed boar semen can be practiced with convinced fertility under field conditionsby fixed-time intrauterine insemination with 2 × 109 sperm/ dose of 20ml at 24 and 36 hr after the onset of estrus.

【 授权许可】

Unknown