Receita Dos Cortes Secundários Da Carcaça De Machos Nelore Não Castrados Abatidos Com Diferentes Pesos E Dentições

Abstract

The objective of this work was to assess the income of deboning secondary cuts from non-castrated Nellore carcasses, slaughtered with different weights and dentition. Fourty animals with average initial weight at feedlot of 350 kg were used. The animals were divided into four groups: animals with 0 and two teeth, with carcass weight up to 238,0 kg (young and light carcass); 2-teeth animals with carcass weight ranging from 238,1 to 258,0 kg (young and medium carcass); 2-teeth animals with carcass weight above 258 kg (young and heavy carcass) and animals with four or six teeth, regardless of carcass weight (adults). The animals were confined and fed a diet calculated to achieve a weight gain of 1.2 kg/day. The study showed that carcasses of young animals show similarity in yields of most deboned cuts among weight classes and the four or six-teeth (adults) males were similar to young and medium animals and lower to young with heavy carcasses in some boneless cuts. We concluded that deboning primary cuts into secondary cuts represent considerable aggregation value to industry, emphasizing the efficiency of flank deboning process

Carcass characteristics of feedlot-finished Nellore heifers slaughtered at different weights

“…Kuss et al (2005) studied carcass characteristics of cull cows of different genetic groups slaughtered at different weights and observed that increasing slaughter weights (465, 507, and 566 kg) did not change the percentage of hindquarter (51.2, 50.6, and 50.6%), but reduced the forequarter (36.9,37.3,and 35.2%) and increased SR (11.9,12.1,and 14.1%). Vaz et al (2013) examined the deboning revenue of secondary cuts from the carcass of bulls Nellore males slaughtered at different weights and different dentitions and found no effect of slaughter weight on the percentages of forequarter, hindquarter, or SR. Those authors concluded that irrespective of weight, the carcasses of young animals are similar regarding the yield of most deboned cuts.…”

“…The 'cull female' category includes cows and heifers, which are destined for slaughter due to reproductive failures, physical defects, inferior livestock potential, or low yield (Andreotti et al, 2015). According to Pacheco et al (2013), the slaughter of cull cows represents an important source of income for producers and stands out as a relevant share of the slaughter of beef cattle in Brazil.…”

“…At present, the carcass weight constitutes the main criterion in establishing the price paid for cattle by slaughterhouses in Brazil, which seek and pay more for animals with heavier carcasses. In general, slaughterhouses prefer heavier animals because they allow for a more efficient operation of the industry, since lighter carcasses require the same labor and processing time (Vaz, Restle, Pádua, Fonseca, & Pacheco, 2013).…”

<b>Cuts of dairy-origin cattle fed mesquite pod meal in replacement of corn

“…Table 4 show the potential not only of mesquite pod meal but also of dairy-origin cattle for commercial cut yields, since they showed yields of noble cuts such as eye round, similar or, in other cases, superior, such as rump tail, compared to those obtained by Vaz et al (2013), who worked with Nelore animals.…”