caa a22 4500 465744443 CHVBK 20180323111816.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF02240407 doi (NATIONALLICENCE)springer-10.1007/BF02240407 Reproductive performance of nili-ravi buffaloes after a single injection of GnRH early post partum [Elektronische Daten] [S. Nasir Hussain Shah, A. Willemse, D. Van de Wiel] Performances De Reproduction Du Buffle Nili-Ravi Apres Une Injection Unique Precoce Post Partum De Gonadotrophine (GnRH) Summary: Sixty dairy buffaloes (second to fourth lactation) from a large buffalo farm were used to compare the effects of single intramuscular injections of 100 µg gondadotrophin releasing hormone (GnRH), 250 µg GnRH or saline given on day 14post partum. The buffaloes had calved at the end of the breeding season (December). Milk samples for progesterone determination were taken at the time of injection and then three times a week either until first insemination or until around day 90post partum. GnRH given at 14 dayspost partum resulted in quicker completion of uterine involution, earlier resumption of ovarian activity, shorter intervals between calving and conception and a better first service conception rate in non-suckled dairy buffaloes. Differences between the results obtained by a GnRH dose level of 100 µg and 250 µg were non-significant. In the post-treatment period cases of prolonged luteal activity were common in all groups of buffaloes. Therefore the sequential administration of GnRH and prostaglandin is suggested for the management of post-partum reproductive activity in problem herds. Centre for Tropical Veterinary Medicine, 1990 Nasir Hussain Shah S. Veterinary Research Institute, Peshawar, Pakistan aut Willemse A. Department of Herd Health and Reproduction, University of Utrecht, Yalelaan 7, 3508 TD, Utrecht, The Netherlands aut Van de Wiel D. Research Institute for Animal Production "Schoonoord”, Driebergseweg 10D, 3708 JB, Zeist, The Netherlands aut Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/4(1990-12-01), 239-246 0049-4747 22:4<239 1990 22 11250 https://doi.org/10.1007/BF02240407 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02240407 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Nasir Hussain Shah S. Veterinary Research Institute, Peshawar, Pakistan aut NATIONALLICENCE 700 1- Willemse A. Department of Herd Health and Reproduction, University of Utrecht, Yalelaan 7, 3508 TD, Utrecht, The Netherlands aut NATIONALLICENCE 700 1- Van de Wiel D. Research Institute for Animal Production "Schoonoord”, Driebergseweg 10D, 3708 JB, Zeist, The Netherlands aut NATIONALLICENCE 773 0- Tropical Animal Health and Production Kluwer Academic Publishers-Human Sciences Press 22/4(1990-12-01), 239-246 0049-4747 22:4<239 1990 22 11250 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer