Effects of stillbirth and dystocia on subsequent reproductive performance in Japanese Black cattle

Yosuke Sasaki; Mizuho Uematsu; Go Kitahara; Takeshi Osawa; Masuo Sueyoshi

doi:10.1016/j.tvjl.2014.03.004

Effects of stillbirth and dystocia on subsequent reproductive performance in Japanese Black cattle

Vet J. 2014 Jun;200(3):462-3. doi: 10.1016/j.tvjl.2014.03.004. Epub 2014 May 3.

Authors

Yosuke Sasaki¹, Mizuho Uematsu², Go Kitahara³, Takeshi Osawa⁴, Masuo Sueyoshi⁵

Affiliations

¹ Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan. Electronic address: yskssk@cc.miyazaki-u.ac.jp.
² Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan.
³ Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan.
⁴ Department of Veterinary Sciences, Faculty of Agriculture, University of Miyazaki, Miyazaki 889-2192, Japan; Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan.
⁵ Graduate School of Medicine and Veterinary Medicine, University of Miyazaki, Miyazaki 889-1692, Japan; Centre for Animal Disease Control, University of Miyazaki, Miyazaki 889-1692, Japan.

PMID: 24797107
DOI: 10.1016/j.tvjl.2014.03.004

Abstract

The objective of this study was to determine the effects of stillbirth and dystocia on subsequent reproductive performance in Japanese Black cattle. Data were collected for 34,763 calvings from 13,186 animals on 826 farms. Stillbirth was associated with a decreased first service conception rate compared to cows with a normal calving (44.4 versus 54.0%, respectively, P < 0.001). Cows with a normal calving required fewer artificial inseminations per conception and had a lower stillbirth rate at subsequent parity than those with stillbirth and dystocia (P < 0.001). Japanese Black cows with stillbirth and dystocia had inferior subsequent reproductive performance compared with those with a normal calving.

Keywords: Conception rate; Dystocia; Japanese Black; Reproductive performance; Stillbirth.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Cattle
Cattle Diseases / etiology*
Dystocia / veterinary*
Female
Insemination, Artificial
Japan
Parity
Pregnancy
Reproduction*
Seasons
Species Specificity
Stillbirth / veterinary*