Birth interval in sheep Santa Inês

Authors

  • Aurino de Araujo Rego Neto

DOI:

https://doi.org/10.22256/pubvet.v6n24.1408

Keywords:

environmental effects, fixed effects, hair sheep, season of birth

Abstract

Objective was to study some environmental effects on the calving interval in Santa Ines sheep. Data were used experimental sheep flock of Santa Ines, Federal University of Piauí, Campus Profª Cinobelina Elvas, in Bom Jesus-PI. Environmental effects on the studied range of delivery were prenatal: birth year, birth type, age of mother at birth and weight of dam. The study of environmental effects on the calving interval was analyzed and the means were tested by the Students Newman Keuls test at 5% probability. It was observed range of calving interval medium 281.10 ± 64.76 days. The effects of year and season of calving were significant on the calving interval (P <0.05). The weight of dam, age of dam and type of birth of the offspring showed no significant effect (P> 0, 05), calving interval. The effects of year of birth and season of calving were important sources of variation on the calving interval, which reflects the need to consider these effects in models of genetic and phenotypic evaluation.

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Published

2016-09-21

Issue

Vol. 6 No. 24 (2012): Ago. 1

Section

Reprodução animal

License

Copyright (c) 2012 Aurino de Araujo Rego Neto, José Lindenberg Rocha Sarmento, Natanael Pereira da Silva Santos, Alan Oliveira do Ò, Daniel Biagiotti, Fabrício Fernandes Guimarães, Lamarck Martins de Castro Rocha, Gleyson Vieira dos Santos

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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How to Cite

Birth interval in sheep Santa Inês. (2016). Pubvet, 6(24). https://doi.org/10.22256/pubvet.v6n24.1408