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Ciência Animal Brasileira

Print version ISSN 1518-2797On-line version ISSN 1809-6891

Abstract

COSTA, Pablo Tavares et al. Non-constituents of the carcass of lambs on different sexual conditions. Ciênc. anim. bras. [online]. 2020, vol.21, e-48641.  Epub June 01, 2020. ISSN 1809-6891.  http://dx.doi.org/10.1590/1809-6891v21e-48641.

The study was carried out with objective to evaluate the effects of sexual condition on the weights and yields of nonconstituents of the carcass of Texel x Corriedale lambs. Forty-six males were used divided in three groups: uncastrated (n = 15), castrated (n = 17) and induced to cryptorchidism (n = 14). A completely randomized design with three treatments and variable number of repetitions was adopted, an analysis of variance was performed to evaluate the effect of sexual condition on the characteristics studied. Castrated lambs have reached the stipulated conditions for slaughter earlier. Uncastrated and induced to cryptorchidism presented higher weights of head (kg), skin (kg), penis (kg) and liver with gall bladder (kg). Uncastrated lambs presented higher values for lungs with trachea (kg) compared to castrated animals. It is concluded that uncastrated and induced to cryptorchidism lambs present higher weights of some body components when finished in native field receiving supplementation of 1% of body weight. Proportionally, the sexual condition does not interfere in the yields of the body components of Texel x Corriedale lambs.

Keywords : Castration; body parts; induction to cryptorchidism; Ovis aries.

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