论文信息 - Effects of intrauterine and cervical artificial-insemination catheters on farrowing rate and litter size

Effects of intrauterine and cervical artificial-insemination catheters on farrowing rate and litter size

Materials and methods: Three hundred eighty-nine sows were allotted into two experimental groups by parity, body condition score, and breed-of-sire influence. Sow matings were performed using a disposable foam-tipped intrauterine catheter (IU, n = 193) or a cervical catheter (IC, n = 196). Total number of piglets born per litter was recorded, and farrowing rates were calculated after all sows had farrowed or returned to estrus.

K. Stalder | R. Fitzgerald | G. Jones

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