Effect of a GnRH Analogue (peforelin) on the Litter Performance of Gilts and Sows

Overview

Journal Porcine Health Manag

Publisher Biomed Central

Date 2017 Apr 14

PMID 28405462

Citations 1

Authors

Ellen de Jong

Jan Jourquin

Johannes Kauffold

Steven Sarrazin

Jeroen Dewulf

Dominiek Maes

Affiliations

Soon will be listed here.

Abstract

Background: 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.

Results: 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.

Conclusions: Peforelin treatment showed no improvement of litter performance compared to no treatment.

Citing Articles

Research Progress on the Impact of Human Chorionic Gonadotropin on Reproductive Performance in Sows.

Li J, Zhu X, Zhu W, Li L, Wei H, Zhang S Animals (Basel). 2024; 14(22).

PMID: 39595318 PMC: 11591456. DOI: 10.3390/ani14223266.

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