Desempenho e características de carcaça de genótipos caprinos e ovinos na caatinga suplementados com blocos multinutricionais.

Abstract

The performance and carcass characteristics of different goat and sheep genotypes supplemented with multinutritional blocks in the caatinga were evaluated. Fourteen male, uncastrated male animals with a mean age of five months and with an average initial weight of 18 and 20 kg were used, being 10 ½ goats (Boer x SPRD), 10 ½ goats (Savana x SPRD), 10 ½ sheep (Santa Inês X SPRD) and 10 ½ sheep (Dorper x SPRD). The work was developed at the Emepa-PB station, Soledade-PB. The pH and muscle temperature, carcass pH, cold carcass yield, warm carcass yield, cooling weight loss, biological yield and meat color did not differ statistically among the genotypes. The final live weight, total weight gain, average daily weight gain, daily supplement intake, feed conversion, cold carcass weight, carcass composition, marbling, finishing and renal fat were significantly different, where genotype ½ (Dorper x SPRD) were higher than the other genotypes. Comparing all evaluated genotypes, it was observed that ½ animals (Dorper x ½ SPRD) had superior biological performance to the other genotypes, as well as better carcass quality in most of the qualitative characteristics, and the Dorper genotype could be indicated for the Improvement of carcass production and meat of the sheep herd of this region.