Características da carcaça de vacas de descarte de diferentes grupos genéticos terminadas em confinamento com distintos pesos

Kuss, Fernando; Restle, João; Brondani, Ivan Luiz; Pascoal, Leonir Luiz; Menezes, Luís Fernando Glasenapp de; Pazdiora, Raul Dirceu; Freitas, Leandro da Silva

doi:10.1590/s1516-35982005000300025

Cited by 31 publications

(55 citation statements)

References 19 publications

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“…Backfat thickness (BFT) and fat cover degree increased linearly along with the body weight of animals (Table 6), which is in line with the reports found in the literature (Galvão et al, 1991;Restle et al, 1997;Leme et al, 2000;Kuss et al, 2005), wherein we observe an increase of 0.028 mm BFT for each increase in body weight. The fat cover in the carcass is important, because it reduces the losses by dehydration during cooling.…”

Section: Resultssupporting

confidence: 92%

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Pazdiora

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et al. 2013

R. Bras. Zootec.

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-The objective of this study was to evaluate animal performance and carcass characteristics of 64 Nellore young bulls at 22 months of age finished in a feedlot and slaughtered at five body weights (350; 455; 485; 555 and 580 kg) fed diets containing coated or uncoated urea. The experimental design adopted was completely randomized, set in a 4 × 2 factorial arrangement, and for the variables assessed in the control animals, it was 5 × 2. No effect of interaction between slaughter weights and diets were observed, so the variables were analyzed separately, compared by polynomial contrasts and by the F test, respectively. The time animals remained in the feedlot to reach slaughter weights was 66, 88, 145 and 194 days. Average daily gain (ADG) showed quadratic behavior, with a maximum of 1.44 kg/day with animals of 491.7 kg. Dry matter intake (DMI) (kg/day) was similar in all the treatments, but it decreased linearly as body weight increased. The bionutritional efficiency worsened linearly as body weight rose. The elevation in slaughter weight resulted in linear decrease in the percentage of beef round and increase in forequarter. Backfat thickness and rib eye area of the longissimus increased linearly and the percentages of muscle and protein in the carcass reduced and those of fat and ether extract increased linearly as body weight increased. Average daily gain, DMI, feed efficiency and carcass characteristics were not affected by diets containing coated or uncoated urea. However, animals fed coated urea presenter better crude fiber and neutral detergent fiber intake.

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Section: Resultssupporting

confidence: 92%

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Pazdiora

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Faria³

et al. 2013

R. Bras. Zootec.

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“…In the present study, total average bone yield was 17.65% (Table 8), not taking into consideration rib bones, as the rib cuts were prepared with bone in. Summing the 1.96% rib bone yield obtained by (Osório et al, 1995;Junqueira et al, 1998;Ledic et al, 2000;Coutinho Filho et al, 2006;Bonilha et al, 2007;Tarouco et al, 2007) found lower percentages of edible cuts, and higher percentages of bone than those that reported the method proposed by Hankins & Howe (1946) (Perotto et al, 2000;Feijó et al, 2001;Vaz & Restle, 2005;Kuss et al, 2005;Canesin et al, 2006). The studies using the direct assessment method for deboning obtained 19.08% average bone yield, whereas those applying the HH method achieved 16.85%, resulting in a 3.23% difference.…”

Section: Resultsmentioning

confidence: 80%

Meat yield of culled cow and steer carcasses

et al. 2009

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-The experiment evaluated the meat yield of prepared beef cuts, bone and trimmings of steer and culled cow carcasses. Culled 72-month-old Braford cows, 496 kg live weight and 36-month-old steers, 494 kg live weight were used, all from the same herd and finished on ryegrass pasture. A randomized complete design, with two treatments and 15 replications, was used. Hot carcass weight was lower for cows (248 kg) than for steers (263 kg). Steer carcasses presented better conformation, lower chilling loss, shorter (128.6 vs. 137.7 cm), with longer and thicker limbs compared to cows and similar fat finishing. Steer carcasses showed, compared to cow carcasses, always in the same order, similar side cut yield (13.5 vs. 13.4%), higher forequarter yield (38.4 vs. 37.2%), and lower hindquarter yield (48.1 vs. 48.9%), resulting lower yields of the sub-primal cuts full rump and sirloin, lower rump UK trim, rump tail and striploin. Steer and cow carcasses were similar in total yield of prepared meat cuts (77.8 vs. 77.6%), discarded bone (17.4 vs. 17.9%), discarded trimmings (4.54 vs. 4.09%), and losses inherent to the deboning process (0.34 vs. 0.34%). The results showed that cow carcasses are longer, have shorter and thinner limbs, have higher hindquarter and lower of forequarter yields, but the total yield of prepared meat cuts were similar between cow and steer carcasses.Key Words: Braford, commercial cuts, deboning, hindquarter, primal cuts, retail cuts Rendimento de cortes preparados de carcaças de vacas e de novilhosRESUMO -Avaliaram-se os rendimentos de cortes cárneos preparados, de osso e de retalho descartado das carcaças de animais de novilhos e vacas de descarte. Utilizaram-se 15 vacas de 72 meses com peso vivo de 496 kg e 15 novilhos de 36 meses com peso vivo de 494 kg, todos da raça Braford e de mesmo rebanho, terminados em pastagem de azevém.O experimento foi realizado em delineamento inteiramente casualizado, com duas categorias animais, cada uma com 15 repetições. O peso de carcaça quente das vacas de descarte (248 kg) foi inferior ao dos novilhos (263 kg). As carcaças dos novilhos apresentaram melhor conformação, com menor quebra no resfriamento, e foram mais curtas (128,6 vs 137,7 cm), com membros mais longos e espessos em comparação às carcaças das vacas. A porcentagem de gordura de cobertura foi similar entre as categorias. Em comparação às vacas de descarte, os novilhos apresentaram rendimento similar de costilhar (13,5 vs 13,4%), maior de dianteiro (38,4 vs 37,2%) e menor de serrote (48.1 vs 48.9%). Novilhos apresentaram menor rendimento de alcatra e lombo e menor rendimento de miolo da alcatra, maminha e contrafilé. As carcaças de vacas e de novilhos são similares quanto aos rendimentos totais de cortes cárneos preparados (77,8 vs 77,6%), osso descartado (17,5 vs 17,9%), retalho descartado (4,54 vs 4,09%) e perdas inerentes (0,34 vs 0,34%). Vacas têm carcaça mais comprida, membros mais curtos e finos, maior rendimento de serrote, menor de dianteiro e similar de costilhar, mas o rendimento total d...

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“…Generally, the similarity amongst treatments for the variables related to the carcass traits can be attributed to the similar weight conditions under which they were slaughtered (Kuss et al, 2005). In studies on finishing steers (Mach et al, 2009;Bartoň et al, 2013) and calves (Ramos and Kerley, 2012), similar carcass traits were described when compared with animals fed a diet without crude glycerin and diets with up to 200 g kg −1 crude glycerin.…”

Section: Discussionmentioning

confidence: 99%

Performance, rumen development, and carcass traits of male calves fed starter concentrate with crude glycerin

et al. 2016

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-The objective of this study was to assess the effects of including crude glycerin in the diet on intake, performance, rumen development, and carcass traits of dairy crossbred veal calves fed starter concentrate containing 0, 80, 160, and 240 g kg −1 crude glycerin. Twenty-eight calves with an average weight of 38.03±6.7 kg and five days of age were distributed in a completely randomized design with four treatments with seven replications. Calves were individually housed in covered stalls equipped with feeders and drinkers for 56 days. The calf response to inclusion of crude glycerin in the concentrate changed over the weeks and the inclusion level of 240 g kg −1 resulted in greater dry matter intake and average daily gain. There was no effect on the final weight and total weight gain of the animals, with mean values of 73.60 and 35.16 kg, respectively. The weight of the rumen-reticulum adjusted for body weight, empty body weight, and total stomach weight increased linearly with the inclusion of crude glycerin. Blood total protein, globulin, urea, cholesterol, gamma glutamyl transferase, aspartate aminotransferase, and alkaline phosphatase concentrations did not differ among treatments. Carcass traits and meat color were not affected. Crude glycerin can be added to dairy calf starter concentrate up to 240 g kg −1 dry matter because it benefits concentrate intake, performance, and rumen development without affecting animal health.

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Características da carcaça de vacas de descarte de diferentes grupos genéticos terminadas em confinamento com distintos pesos

Cited by 31 publications

References 19 publications

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Animal performance and carcass characteristics of Nellore young bulls fed coated or uncoated urea slaughtered at different weights

Meat yield of culled cow and steer carcasses

Performance, rumen development, and carcass traits of male calves fed starter concentrate with crude glycerin

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