摘要
During the periods January to April, May to August, and September to December in two consecutive years, sows were assigned at breeding to receive semen doses supplemented with 87 µg cloprostenol (PG; n = 158), 5 IU oxytocin (OT; n = 154), 2 µg buserelin (GN; n = 93), or served as non-supplemented controls (CON; n = 605). Sows were inseminated at the detection of estrus, and again 24 h later, but only the first inseminations were supplemented. Compared to CON, only buserelin increased pregnancy and farrowing rates (p ≤ 0.05); there was no effect of a period or a treatment × period interaction. Litter size was larger (p ≤ 0.001) for all seminal additive groups during the first two periods and tended to increase in GN compared to CON (p ≤ 0.1) during the third period, resulting in a tendency (p < 0.1) for a period × treatment interaction. The addition of cloprostenol, oxytocin or buserelin to semen doses at first insemination increases litter size in multiparous sows.
摘要译文
在连续两年的期限一月至四月，五月至八月，九月至12月，在母猪配种收到补充87微克氯前列烯醇（PG精液剂量分配; n = 158），5 IU催产素（OT; n = 154），2μgbuserelin（gn; n = 93），或用作不补充的对照（CON; n = 605）。母猪在检测到雌激发，再次24小时，但只补充了第一个潜水剂。相比，仅限妊娠妊娠和盗用率（P≤0.05）;期间没有效果或治疗×周期相互作用。对于在前两个时段期间，所有精液添加剂的凋落物尺寸较大（p≤0.001），并且在第三期间与CON（p≤0.1）相比，GN增加到GN（P <0.1），导致趋势（P <0.1） ×治疗相互作用。在第一授精中加入氯吡啶酚，催产素或Buserlin至精液剂量增加了多重母猪的凋落物尺寸。
Rodrigo Manjarín[ 1]; Roy N. Kirkwood[ 2;[*]; Jose Ngula[ 3]; Felipe Martinez-Pastor[ 4;5]; Beatrix Alegre[ 3];Juan Carlos Domínguez[ 3;5]. Effect of Oxytocin, Cloprostenol or Buserelin in Semen Doses on Sow Fertility[J]. Animals, 2019,9(10): 746