Efeito do flushing alimentar sobre a eficiência produtiva e reprodutiva em ovelhas

Gabriela Rodrigues de Paula; Edson Luis de Azambuja Ribeiro; Sandra Maria Simonelli; Fernando Augusto Grandis; Bruna Silva Marestone; Fernado Luiz Massaro Junior; Thaís Campos de Freitas; Valter Harry Bumbieris Junior; Maria Teresa Rodrigues de Souza

doi:10.1590/1809-6891v26e-80913E

Authors

Gabriela Rodrigues de Paula Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0002-0482-3309
Edson Luis de Azambuja Ribeiro Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0001-8450-1344
Sandra Maria Simonelli Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0001-8285-5296
Fernando Augusto Grandis Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0002-1039-7465
Bruna Silva Marestone Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0002-8010-0997
Fernado Luiz Massaro Junior Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0002-8510-4743
Thaís Campos de Freitas Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0003-3942-599X
Valter Harry Bumbieris Junior Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0000-0001-7255-4887
Maria Teresa Rodrigues de Souza Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil https://orcid.org/0009-0001-1338-1397

DOI:

https://doi.org/10.1590/1809-6891v26e-80913E

Abstract

The study evaluated dietary flushing on reproductive efficiency in 60 Santa Ines ewes, divided into three groups: (1) no supplementation, (2) 0.50% and (3) 1.00% supplementation of body weight. The supplement contained corn, soybean meal, oats, lime, bicalcium phosphate, mineral mixture, urea and yeast, administered three weeks before and during mating, which lasted for 46 days. Weight, body condition and weight gain were measured at the beginning and end of the feeding period. Milk production, lamb weight and biometric measurements were recorded until weaning. Supplementation did not significantly affect the ewes' weight, body condition indices or milk production. The percentages of twin births were: 19%, 52.9% and 44.4% (P=0.08), respectively for the ewes in the control group and for those that received supplements (0.50% and 1.00%). Lamb weight and biometric measurements were not significantly affected by maternal treatment or the sex of the lamb. Lambs born from single births were heavier than those from twin births (P<0.05), but the combined weights of twins at weaning were higher. Ewes with twins tended (P<0.09) to be more efficient than those with single birth lambs, weaning 41 kg of lambs per 100 kg of ewe weight, compared to 36 kg for single birth ewes. Flushing did not affect ewe weight or milk production, but it did increase the rate of twin births, improving reproductive efficiency.

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Author Biography

Thaís Campos de Freitas, Universidade Estadual de Londrina (UEL), Londrina, Paraná, Brazil

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