de Jong Ellen, Jourquin Jan, Kauffold Johannes, Sarrazin Steven, Dewulf Jeroen, Maes Dominiek
Department of Reproduction Obstetrics and Herd Health, Unit Porcine Health Management, Faculty of Veterinary Medicine, University of Ghent, Salisburylaan 133, B-9820 Merelbeke, Belgium.
Present address: Flemish Animal Health Service (Dierengezondheidszorg Vlaanderen), Industrielaan 29, B-8820 Torhout, Belgium.
Porcine Health Manag. 2017 Mar 15;3:6. doi: 10.1186/s40813-017-0054-5. eCollection 2017.
Maintaining optimal reproductive and litter performance is essential for meeting economic targets in commercial pig production. Treatment with exogenous gonadotropins in sows after weaning or in gilts after altrenogest treatment has been used to stimulate follicular development leading to more piglets born and eventually higher birth weights. The effect of peforelin on litter performance was investigated in 212 gilts, primi- and pluriparous sows in three herds. Animals were randomly allocated to three treatments 24 h after weaning: peforelin (P group), eCG (E group), and physiological saline solution (C group). Numbers of total, liveborn and stillborn piglets and mortality rate during lactation were recorded. Birth weights and coefficient of variation in weights within litter were assessed. All parameters were compared among treatments.
Over all parities, no difference was found among treatments in litter size nor mortality rate, but birth weights were significantly lower in the E group. Stillbirth numbers in pluriparous sows were 2.2, 0.9 and 1.4 for P, E and C groups, respectively ( = 0.04). Piglets in the P group had significantly higher live born birth weights in gilts, compared to the E group (1.36, 1.26, 1.32 kg ( < 0.02) for P, E and C group, respectively). No significant differences were found for the other investigated parameters.
Peforelin treatment showed no improvement of litter performance compared to no treatment.
维持最佳繁殖性能和窝产性能对于实现商业养猪生产的经济目标至关重要。断奶后母猪或烯丙孕素处理后的后备母猪使用外源性促性腺激素进行治疗，已被用于刺激卵泡发育，从而增加仔猪出生数量并最终提高出生体重。在三个猪群中，对212头后备母猪、初产母猪和经产母猪进行了培高利特对窝产性能影响的研究。断奶24小时后，将动物随机分为三组进行处理：培高利特组（P组）、孕马血清促性腺激素组（E组）和生理盐水组（C组）。记录总产仔数、活产仔数、死产仔数以及哺乳期死亡率。评估出生体重和窝内体重变异系数。对各处理组的所有参数进行比较。
在所有胎次中，各处理组在窝产仔数和死亡率方面均无差异，但E组的出生体重显著较低。经产母猪的死产仔数在P组、E组和C组中分别为2.2、0.9和1.4头（=0.04）。与E组相比，P组后备母猪的活产出生体重显著更高（P组、E组和C组分别为1.36、1.26、1.32千克（<0.02））。其他研究参数未发现显著差异。
与未处理相比，培高利特处理并未改善窝产性能。
