[Reproductive performance in Herens cows from 2003 to 2007]

Pfister, Patrizia; Kaufmann, Thomas; Fellay, E.; Hirsbrunner, Gabriela (2011). [Reproductive performance in Herens cows from 2003 to 2007]. Schweizer Archiv für Tierheilkunde, 153(1), pp. 7-13. Bern: Huber 10.1024/0036-7281/a000136

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Herens cows have been treated at the Clinic for Ruminants, University of Berne, more frequently for fertility problems than other breeds. The aim of the study was to overview the reproductive performance of the Herens breed by analyzing data sets of the Herens Breeding Book and of the Animal Traffic Database of Switzerland. In addition, a questionnaire was sent to the breeders concerning aspects of management and care to identify a possible influence on the reproductive performance of the animals. Based on 4988 lactations starting in 2003, an average interval of calving to first insemination of 86 days a calving to conception interval of 146 days and an inter calving period of 431 days could be calculated. Conception rate resulted in 39.1%, the fertility index was 1.87 and 6.5% of all cows were culled because of fertility problems. Half of the breeders owned 4 or less cows. The most important reason for keeping Herens cows was cow fighting. Traditional alpine pasturing and cow fight rules resulted in a seasonal calving with 80% of the births taking place between October and December. The calving month and seasonal calving were the most important reasons for a prolonged calving to conception interval.

Item Type:	Journal Article (Original Article)
Division/Institute:	05 Veterinary Medicine > Department of Clinical Veterinary Medicine (DKV) > Clinic for Ruminants
UniBE Contributor:	Pfister, Patrizia, Kaufmann, Thomas (A), Hirsbrunner, Gabriela
Subjects:	600 Technology > 630 Agriculture
ISSN:	0036-7281
Publisher:	Huber
Language:	German
Submitter:	Factscience Import
Date Deposited:	04 Oct 2013 14:31
Last Modified:	29 Mar 2023 23:32
Publisher DOI:	10.1024/0036-7281/a000136
Web of Science ID:	000286948200002
URI:	https://boris.unibe.ch/id/eprint/12020 (FactScience: 218292)