PRODUCTIVE EFFICIENCY OF SHEEP WITH DIFFERENT CONFORMATION TRAITS UNDER GRAZING

Authors

  • Verônica Gindri Manzoni Programa de Pós-Graduação em Zootecnia/Universidade Federal de Santa Maria - Estudante de Doutorado
  • Ricardo Zambarda Vaz Departamento de Zootecnia/Faculdade de Agronomia Eliseu Maciel/ Universidade Federal de Pelotas
  • Otoniel Geter Lauz Ferreira Departamento de Zootecnia/Faculdade de Agronomia Eliseu Maciel/ Universidade Federal de Pelotas
  • Olmar Antônio Denardin Costa Programa de Pós Graduação em Zootecnia - Faculdade de Agronomia Eliseu Maciel - Universidade Federal de Pelotas - Estudante de Doutorado
  • Fernando Amarilho Silveira Programa de Pós Graduação em Zootecnia - Faculdade de Agronomia Eliseu Maciel - Universidade Federal de Pelotas - Estudante de Mestrado

DOI:

https://doi.org/10.1590/cab18041123

Keywords:

Animal Nutrition

Abstract

This study was carried out to evaluate the productive efficiency of Corriedale sheep of different conformation traits, reared on natural and/or cultivated winter pastures. At calving, the females were classified as medium (frame = 50 to 57.5 kg) and large (frame = 57.6 to 62 kg) regarding the size and as average (2 to 3 points) or high (3.5 to 4.5 points) regarding the body condition score. The experimental design was entirely randomized in a 2 x 2 factorial arrangement (two groups of body weights x two classes of body condition at calving). Sheep with medium body structure were lighter compared to large ones at calving (39.97 vs 48.16 kg, respectively) and at weaning (43.10 vs 50.22 kg, respectively). The production efficiency at calving and at weaning did not differ between medium (46.91 and 44.24 kg) and large sheep (47.83 and 45.69 kg), respectively. Sheep with average body condition at calving compared with sheep with high body condition showed no significant differences for productive efficiency at calving (46.89 vs. 47.82) and at weaning (44.10 vs. 45.83). The animal size and the body condition score at calving did not influence the production efficiency of sheep herds on grazing. 
Keywords: Body condition; calving; corriedale; frame; weaning.

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Published

2017-03-31

How to Cite

MANZONI, V. G.; VAZ, R. Z.; FERREIRA, O. G. L.; COSTA, O. A. D.; SILVEIRA, F. A. PRODUCTIVE EFFICIENCY OF SHEEP WITH DIFFERENT CONFORMATION TRAITS UNDER GRAZING. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 18, 2017. DOI: 10.1590/cab18041123. Disponível em: https://revistas.ufg.br/vet/article/view/e-41123. Acesso em: 27 nov. 2024.

Issue

Vol. 18 (2017): Continuous publication

Section

ZOOTECNIA

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