Comparison between the chemical and the rubber - ring processes on Iambs castration

Authors

  • Walter Dupas Instituto de Zootecnia, Divisão de Zootecnia Diversificada, Seção de Ovinos e Caprinos, Nova Odessa, SP
  • Milton Gorni Instituto de Zootecnia, Divisão de Zootecnia Diversificada, Seção de Suinocultura, Nova Odessa, SP
  • Luiz Eduardo dos Santos Instituto de Zootecnia, Divisão de Zootecnia Diversificada, Seção de Ovinos e Caprinos, Nova Odessa, SP
  • Domingos Sanchez Roda Instituto de Zootecnia, Divisão de Zootecnia Diversificada, Seção de Ovinos e Caprinos, Nova Odessa, SP
  • Maria Josefa Fernandes Sanchez Instituto de Zootecnia, Divisão de Nutrição Animal e Pastagens, Seção de Agronomia de Plantas Forrageiras, Nova Odessa, SP

Abstract

Two methods of castration of lambs were compared, by rubber ring and chemical, in 1981 and 1985, in two regions: in the Posto de Ovinos e Caprinos de Itapetininga and in the Estação Experimental Central de Nova Odessa, both from the instituto de Zootecnia, State of So Paulo, Brazil. Thirty males were utilized in Itapetininga and 27 in Nova Odessa distributed in a completely randomized design to each region. The parameters studied were the following: retal temperature, weight gain, ambiental temperature and hematological values. The statistical analyses showed that retal temperature was different among the treatments in the second day in both regions, and in the third day in Itapetininga. This increase in the temperature was higher in the animals that suffered the chemical castration. The castration treatments did not affect the mortality level of the piglets. At the end of the experimental period it was taken blood samples to quantify the erythrocytes (mm3), leucocytes (mm3) and to measure the hematocrit value. The results of statistical analyses showed no significance between any hematic characteristic. The results of chemical and rubber ring castration of lambs suggest their employment in these animals.

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Published

2014-01-29

Issue

Section

ANIMAL NUTRITION

How to Cite

Comparison between the chemical and the rubber - ring processes on Iambs castration. (2014). Bulletin of Animal Husbandry, 44(2), 289-296. http://bia.iz.sp.gov.br/index.php/bia/article/view/715

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