REPRODUCTIVE AND METABOLIC RESPONSES IN EWES TO DIETARY PROTEIN SUPPLEMENT DURING MATING PERIOD IN DRY SEASON OF NORTHEAST BRAZIL

Magda Rodrigues; Liliane Moreira Silva; Cleidson Manuel Gomes da Silva; Airton Alencar Araújo; Diana Célia Sousa Nunes-Pinheiro; Davide Rondina

doi:10.1590/1089-6891v16i124613

REPRODUCTIVE AND METABOLIC RESPONSES IN EWES TO DIETARY PROTEIN SUPPLEMENT DURING MATING PERIOD IN DRY SEASON OF NORTHEAST BRAZIL

Authors

Magda Rodrigues Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil
Liliane Moreira Silva Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil
Cleidson Manuel Gomes da Silva Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil
Airton Alencar Araújo Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil
Diana Célia Sousa Nunes-Pinheiro Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil
Davide Rondina Universidade Federal do Ceará (UFC), Fortaleza, Ceará, Brasil

DOI:

https://doi.org/10.1590/1089-6891v16i124613

Keywords:

Animal Reproduction

Abstract

This study evaluated the effect of food supplements with different levels of protein on reproductive and metabolic response of ewes during the mating period. Forty-one ewes were supplemented during 43 days with amount protein to meet 1.0 (diet I; n = 14), 1.7 (diet II; n = 13) and 2.1 (diet III; n = 14) times the maintenance requirements. Dry matter (DM) intake was higher (P < 0.01) in diet III when compared to diets I and II. Orts were lesser in diets II and III (P < 0.05) when compared to diet I. Intake of organic matter (OM), crude protein (CP) and ether extract (EE) was higher in diet III (P < 0.05), but NDF and ADF intake was superior in diet I (P < 0.05). In diet III, a higher frequency of female mated was observed (P < 0.05). The prolificity and twinning rate was higher in ewes of diet II (P < 0.05). Greater birth weight of lambs (P < 0.05) was verified in diet III. The progesterone levels were affected by diets II and III (P < 0.05). In conclusion, the supplementation of ewes with intermediate level of protein improves their reproductive response.

Keywords: estrus synchronization; mating; protein; sheep.

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Published

2015-01-31

How to Cite

RODRIGUES, Magda; SILVA, Liliane Moreira; SILVA, Cleidson Manuel Gomes da; ARAÚJO, Airton Alencar; NUNES-PINHEIRO, Diana Célia Sousa; RONDINA, Davide. REPRODUCTIVE AND METABOLIC RESPONSES IN EWES TO DIETARY PROTEIN SUPPLEMENT DURING MATING PERIOD IN DRY SEASON OF NORTHEAST BRAZIL. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 16, n. 1, p. 24–36, 2015. DOI: 10.1590/1089-6891v16i124613. Disponível em: https://revistas.ufg.br/vet/article/view/24613. Acesso em: 6 dec. 2025.

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Issue

Vol. 16 No. 1 (2015)

Section

Animal Production

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