Prediction of carcase characteristics using neck traits from hair-sheep ewes

Indirect methods for predicting the body composition of sheep of different sex classes

“…The good relationships between the tissue composition of the carcass and the neck of non-descript breed sheep native to the Brazilian semiarid region suggest that the neck can be used to predict the tissue composition of the carcass, as also observed by Rivera-Alegria et al (2022). On the other hand, Argüello, Capote, Ginés, and López (2001) and Gomes et al (2022) reported that neck tissue composition was not a good parameter for predicting carcass tissue composition in kids.…”

“…The use of tissue and chemical composition of the neck seems to be a viable alternative for estimating the body composition of non-descript breed sheep native to the Brazilian semiarid region, mainly because the neck represents a cut of low commercial value (Rivera-Alegria et al, 2022) and obtaining it for predictive analysis result in lower losses compared to the use of the section from the 9th to 11st ribs. In this sense, for castrated males, the neck presented a strong positive correlation (p < 0.01) with EBW (r=0.88), meat (r=0.90), bone (r=0.83), CP (r=0.86), EE (r=0.90), ash (r=0.82), water (r=0.86) and energy (r=0.87) (Table 5).…”

Composición tisular de la canal en diferentes razas ovinas de pelo criadas en el sureste de México

“…Results from the present study are specific to a hair sheep breed and predictive equations may not be extrapolated to other breeds, but this builds a starting point for studying other sheep breeds from tropical production systems. Also, Rivera-Alegria et al [14] evaluated the neck traits to predict of carcass characteristics in hairsheep ewes, these authors found that the use of neck traits showed a positive relationship, being stronger for the hot and cold carcass weights with the neck traits, which turned out to be adequate predictor variables for the carcass muscle weight and fat. In this sense, the weight of the neck and its content of muscle and fat could be used to predict the composition of the carcass tissue in nonpregnant and non-lactating multiparous Pelibuey ewes.…”

“…In this sense, the weight of the neck and its content of muscle and fat could be used to predict the composition of the carcass tissue in nonpregnant and non-lactating multiparous Pelibuey ewes. Recently, Gastelum-Delgado et al [14] in a study designed to develop predictive equations estimating carcass tissue composition in growing Blackbelly male lambs using as predictor variables for tissue composition of wholesale cuts of low economic value (i.e., neck and shoulder). These authors found that the obtained models explained (p < 0.01) 94, 92 and 88% of the variation observed for carcass muscle, fat and bone, respectively.…”