cattle; PGF; estrus induction; vache; induction de l'oestrus
Abstract :
[en] Hormonal management of reproduction uses treatments that regulate both luteal activity and follicular growth to achieve expulsion in the shortest period of an oocyte capable of being fertilised. Therefore, PgF2alpha has been the object of numerous trials either as sin e or repeated injections, alone or in association with other hormones such as gonadorelin. Systematic insemination is more difficult after a single injection because return to ea is variable. A single injection is better for the physiology of follicular growth than the corpus luteum. Use of a double injection of PgF2alpha improves the degree of synchronisation but doesn't affect the ovulation rate.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Hanzen, Christian ; Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Obstétr. et path. de la reprod. des équidés, rumin. et porcs
Boudry, B.
Drion, Pierre ; Université de Liège - ULiège > Faculté de médecine vétérinaire > Service de Physiologie de la Reproduction
Language :
French
Title :
Induction et synchronisation de l'oestrus par la PGF2alpha
Alternative titles :
[en] Induction and synchronisation of oestrus using PgF2 alpha
Publication date :
2003
Journal title :
Point Vétérinaire
ISSN :
0335-4997
Publisher :
Point Veterinaire S A, Maisons-Alfort Cedex, France