Efeito do benzoato de estradiol sobre a taxa de mortalidade e sobre o desenvolvimento de leitões nascidos com peso inferior a 1.200g

Caio Abércio da Silva; Luis Watanabe; Nilva Aparecida Nicolao Fonseca

doi:10.4025/actascianimsci.v20i0.4408

The effect of oestradiol benzoate on mortality rate and performance of newborn light-weight (less than 1.200g) piglets

Caio Abércio da Silva UEL
Luis Watanabe Não possui
Nilva Aparecida Nicolao Fonseca UEL

DOI: https://doi.org/10.4025/actascianimsci.v20i0.4408

Abstract

The effect of oestradiol benzoate (OB) on mortality rate and performance of a sample of 706 newborn Large White x Landrace piglets from 62 litters. After being individually weighed, they were divided into 3 treatments: T0, T1 and T2. T0 piglets weighing less than 1.200g were administered commercial drug (0.1mg OB, 0.1ml ethanol, 2.5mg chlorobuthanol diluted 0.9ml vegetal oil). T1 piglets weighing less than 1.200g also received similar commercial drug, with the exclusion of OB. T2 group weighing over, 1.200g received no treatment. Each litter was considered a replicate. Mortality rates for T0 and T1 were respectively 25.82% and 25.45%, while 5.62% for T2 showed to be significantly different (P≤0.05). Mortality rate was not influenced by OB administration, but only by the weight at birth. The weight gain from birth to 21-day age was different (P≤0.05) between T0 (4,199.6g), T1 (4,045.1g) and T2 (3,958.9g), but showed no significant difference between the treatments for weight at 21-day age.

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Author Biography

Caio Abércio da Silva, UEL

Possui graduação em Medicina Veterinária pela Universidade Estadual de Londrina (1986), mestrado em Ciências de Alimentos pela Universidade Estadual de Londrina (1993), doutorado em Zootecnia pela Universidade Estadual Paulista Júlio de Mesquita Filho (2000) e Pós-doutorado pela Universidade Autônoma de Barcelona (2007). Atualmente é professor adjunto da Universidade Estadual de Londrina. Tem experiência na área de Zootecnia, com ênfase em Avaliação de Alimentos para Animais, Aditivos e Manipulação do Desempenho Muscular Fetal, atuando principalmente nos seguintes temas: suínos, suinocultura, manejo, girassol, carcaça e carne Currículo Lattes

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Published

2008-07-16

How to Cite

Silva, C. A. da, Watanabe, L., & Fonseca, N. A. N. (2008). The effect of oestradiol benzoate on mortality rate and performance of newborn light-weight (less than 1.200g) piglets. Acta Scientiarum. Animal Sciences, 20, 401-405. https://doi.org/10.4025/actascianimsci.v20i0.4408

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Issue

Vol 20 (1998)

Section

Zootecny

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