Suplementação energética para vacas de descarte de diferentes idades em terminação em pastagem cultivada de estação fria sob pastejo horário

Restle, João; Roso, Cledson; Oliveira, André Nunes de; Filho, Dari Celestino Alves; Pascoal, Leonir Luiz; Rosa, Joilmaro Rodrigo Pereira

doi:10.1590/s1516-35982000000400036

Cited by 16 publications

(26 citation statements)

References 2 publications

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“…Other authors have clearly demonstrated the effect of maturity of animals (different ages or categories) on the percentage of primary cuts of the carcass, especially the pistolcut, which is higher in carcasses of young animals, as demonstrated by Restle et al (2000) and Restle et al (2001), evaluating Charolais heifers and cull cows, and Ferreira et al (2009), in a study with crossbred Charolais × Nellore steers. In a comparison between males and females of similar age, Vaz et al (2010b) and Santos et al (2008) found similarities between the percentages of the forequarter and pistolcut, supporting the statements of Berg & Butterfield (1976), that differences in the development of front and rear are not evident when comparing castrated females with males of the same age.…”

Section: Resultsmentioning

confidence: 83%

“…Evaluating the percentages of the commercial cuts of the carcass, Restle et al (2000) and Restle et al (2001) reported superiority of younger females for the percentage of saw cut in relation to the more mature ones, while Ferreira et al (2009) observed advantage of steers in relation to cull cows. and Cattelam et al (2009) observed greater percentage of fat and lower percentage of muscle in cull cows than in steers carcasses, while Vaz et al (2010a) reported similarity in muscle: bone and muscle+fat:bone relation by comparing young steers with heifers.…”

Section: Introductionmentioning

confidence: 99%

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Carcass physical composition and meat quality of Charolais cattle of different categories

et al. 2011

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-The objective of the experiment was to study the carcass physical composition and meat qualitative characteristics of different categories of Charolais cattle, feedlot finished. Nine steers (ST), ten heifers (HE), with average age of 20 months, and ten cull cows (CO) with average age of 87 months, taken from the same herd, were used. Diet contained 13% of crude protein for ST and HE and 10% for CO, with roughage:concentrate relation of 50:50, on a dry matter basis.The animals of the three categories were slaughtered with similar degree of finishing, with average subcutaneous fat thickness of 3.8 mm. HE showed carcasses with greater pistolcut percentage (52.8%) than ST (51.0%) and CO (51.4%). The carcass physical composition was similar among the categories evaluated, with 66.5; 67.0 and 67.3% of muscle, 19.1; 18.5 and 18.7% of fat, and 14.9; 15.0; and 14.6% of bone, respectively, for ST, HE and CO. The marbling score was lower for HE (4.6 points) than ST (7.1 points) and CO (6.5 points). However, when this characteristic was adjusted for 100 kg of cold carcass, the means were similar among the categories. CO showed higher cooking losses (27.8%) than ST (21.4%) and HE (23.5%). Meat color, texture, tenderness, shear force, palatability and juiciness were similar among the categories. Charolais cows have the potential for the production of carcass and meat with quality similar to steers and heifers.

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Section: Resultsmentioning

confidence: 83%

Section: Introductionmentioning

confidence: 99%

Carcass physical composition and meat quality of Charolais cattle of different categories

et al. 2011

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“…RESTLE et al (2000d), utilizando o grão de sorgo como suplemento para vacas de descarte, nos níveis de 0; 0,3; 0,6; e 0,9% do peso vivo, durante a terminação em pastagem de X triticosecale + Lolium multiflorum sob pastejo horário, não observaram diferenças no GMD, que variou de 1,44 kg, nas vacas suplementadas com 0,3% do peso vivo, a 1,51 kg nas vacas suplementadas com 0,9% do peso vivo.…”

Section: Resultsunclassified

Desempenho e Características da Carcaça de Vacas de Diferentes Grupos Genéticos em Pastagem Cultivada com Suplementação Energética

Restle

Vaz²,

Roso³

et al. 2001

R. Bras. Zootec.

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RESUMO -O objetivo deste trabalho foi testar diferentes níveis de suplementação energética na forma de grão de sorgo moído, para a terminação em pastagem, de vacas de descarte de diferentes genótipos Charolês (C) x Nelore (N). Foram utilizadas trinta vacas de descarte, dos seguintes grupos genéticos: C, N, 3/4 C + 1/4 N (CN) e 3/4 N + 1/4 C (NC), terminadas em pastagem cultivada de aveia (Avena strigosa) + azevém (Lolium multiflorum), distribuídas em três níveis de suplementação (NS): 0,0; 0,4; ou 0,8% do peso vivo. No estudo do efeito de grupo genético, verificou-se que os ganhos de peso médio diário foram de 1,03; 1,06; 1,36; e 1,02 kg, respectivamente, para C, N, CN e NC. O peso final foi de 453, 412, 515 e 478 kg, citados na mesma ordem. O ganho de condição corporal (CC) durante a terminação foi maior nas vacas N (1,81 pontos) em relação as C (1,09 pontos) e CN (0,99 pontos), ficando as vacas NC com valor intermediário (1,42 pontos). Verificou-se que vacas C apresentam maior peso de carcaça, melhor conformação e área de Longissimus dorsi em relação às vacas N, enquanto estas, apresentam maior percentagem de osso. As vacas CN mostraram carne de coloração mais clara que as NC. Os ganhos de peso médio diário foram de 0,92; 1,23; e 1,20 kg, respectivamente, para os níveis 0,0; 0,4 e 0,8% de suplementação.Palavras-chave: Avena strigosa, Charolês, grau de acabamento, Lolium multiflorum, Nelore, rendimento de carcaça, sorgo, vacas de descarte Performance and Carcass Characteristics of Cows of Different Genetic Groups, Submitted to Energetic Supplementation Levels on Winter Cultivated PastureABSTRACT -The objective of this work was to evaluate different levels of enegetic supplementation, in the form of grounded sorghum for finishing of cull cows from different genotypes of Charolais (C) x Nellore (N), kept on cultivated pasture during the last half of the vegetative cycle. Thirty C, N, 3/4 C + 1/4 N (CN) and 3/4 N + 1/4 C (NC) beef cows, kept on cultivated pasture of oats (Avena strigosa) + ryegrass (Lolium multiflorum) were allotted in three supplementation levels: .0, .4 or .8% of live weight. In the study of the genetic group effect, it was observed that the average daily gain was 1.03, 1.06, 1.36 and 1.02 kg, respectively, for C, N, CN and NC. Final live weigth was 453, 412, 515 and 478kg, respectively. The gain in body condition during the finishing was higher for the N cows (1.81 points) than for the C (1.09 points) and CN ( .99 points), while the NC cows showed an intermediate value (1.42 points). Carcasses from C cows showed higher weight, better conformation and Longissimus dorsi area than from the N, while the last ones, showed higher bone percentage in the carcass. Between the crossbreds, the CN meat exhibited brighter color than the NC. With relation to the supplementation level, the average daily gain was .92, 1.23 and 1.20 kg, respectively, for .0, .4 and .8%.

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“…No presente trabalho, o ganho de peso médio diário dos quatro tratamentos foi semelhante, sendo de: NS0 = 1,48, NS03 = 1,44, NS06 = 1,48, e NS09 = 1,51 kg (RESTLE et al, 2000).…”

Section: Resultsunclassified

Efeito da suplementação energética sobre a carcaça de vacas de diferentes idades, terminadas em pastagem cultivada de estação fria sob pastejo horário

Restle

Vaz²,

Filho

et al. 2001

R. Bras. Zootec.

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RESUMO -O objetivo deste trabalho foi testar níveis de suplementação energética sobre as características de carcaça de vacas de descarte, de diferentes idades, submetidas ao pastejo horário em pastagem de Lolium multiflorum + X triticosecale. Foram utilizadas 40 vacas de descarte Charolês, divididas em quatro classes em função da idade ao abate (IA), ou seja: 4 (IA4), 5 e 6 (IA5-6), 7 e 8 (IA7-8) ou mais de 8 anos (IA+8), e distribuídas ao acaso em quatro níveis de suplementação energética (NS): 0; 0,3; 0,6; e 0,9% do peso vivo. O suplemento utilizado foi o grão de sorgo triturado. Não houve interação significativa entre nível de suplemento e idade do animal. O incremento do nível de suplemento aumentou linearmente a espessura de gordura subcutânea, segundo a equação: Y = 2,090 + 1,717NS. Os pesos de fazenda e de carcaça fria foram maiores nas vacas IA7-8 do que nas vacas IA4. A espessura de gordura foi de 3,69 mm nas vacas IA+8 e 3,59 mm nas IA7-8, sendo ambas superiores ao das IA4, em que os animais apresentaram 2,22 mm. As vacas com IA4 também foram inferiores às vacas IA5-6 e IA7-8 no comprimento de carcaça, entretanto apresentaram maior porcentagem de traseiro (50,1%) que as IA7-8 (47,5%) e IA+8 (47,6%), mas foram inferiores às outras três idades no percentual de costilhar.Palavras-chave: Charolês, cortes comerciais, espessura de gordura, rendimento de carcaça, vacas de descarte Carcass Characteristics of Cows under Temporary Grazing of Cultivated Winter Pasture and Submitted to Different Energy Supplementation LevelsABSTRACT -The objective of this experiment was to study different levels of energy supplementation on the carcass characteristics of beef cull cows under temporary grazing on cultivated pasture of Lolium multiflorum + X triticosecale. Fourty Charolais cows were divided into four age classes (AC), being: 4 (AC4), 5 and 6 (AC5-6), 7 and 8 (AC7-8) or more than 8 years (AC+8), and randomly alloted into four levels of supplementation (SL): 0, .3, .6 and .9% of live weight. The supplement used was ground sorghum grain. No significant interaction was observed between supplementation level and cow age. The increment of the supplementation level increased linearly the subcutaneous fat thickness, according to the equation Y = 2.090 + 1.717SL. Slaughter and cold carcass weight were higher for AC7-8 than for AC4 cows. Subcutaneous fat thickness was 3.69 mm for AC+8 and 3.59 mm for AC7-8, being both superior to the AC4 (2.22 mm). The AC4 were also inferior than the AC5-6 and AC7-8 in carcass length. However, the AC4 had higher sawcut (50.1%) than the AC7-8 (47.5%) and AC+8 (47.6%), but had smaller sidecut than the others age classes.

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Suplementação energética para vacas de descarte de diferentes idades em terminação em pastagem cultivada de estação fria sob pastejo horário

Cited by 16 publications

References 2 publications

Carcass physical composition and meat quality of Charolais cattle of different categories

Carcass physical composition and meat quality of Charolais cattle of different categories

Desempenho e Características da Carcaça de Vacas de Diferentes Grupos Genéticos em Pastagem Cultivada com Suplementação Energética

Efeito da suplementação energética sobre a carcaça de vacas de diferentes idades, terminadas em pastagem cultivada de estação fria sob pastejo horário

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