ResumoEste estudo teve como objetivo estudar o efeito de dietas com diferentes proporções de concentrado na terminação de cordeiros Texel sobre as características das carcaças e carne ovina. Foram utilizados 12 cordeiros da raça Texel com peso inicial de 20,1±2,34kg. Foram avaliadas rações com três proporções de concentrado na ração total (60, 80 e 100%) e quatro repetições por tratamento. O concentrado foi composto por 15%suplemento nutricional + 85% grão de milho inteiro e o volumoso foi feno de Aveia (Avena strigosa). O rendimento verdadeiro da carcaça foi superior para os animais consumindo 100% de concentrado na dieta, em média 58,3%. Os valores da área de olho de lombo, acabamento e os pesos de costilhar e pernil foram superiores (P<0,05) para os animais recebendo 80 e 100% de concentrado na dieta em relação aos animais consumindo 60%. Cordeiros recebendo 100% da dieta com alto grão apresentaram maiores rendimentos, área de olho de lombo e acabamento de carcaça, características essas relevantes em relação à questão produtiva fornecendo animais com maior porção de carne comestível e com qualidade satisfatória ao mercado consumidor. Os teores de concentrado na dieta não alteraram os parâmetros qualitativos e sensoriais da carne de cordeiros terminados em confinamento, características essas que poderão garantir maior aceitação do produto final, recomendando-se assim a utilização de dietas contendo alto teor de concentrado para cordeiros da raça Texel. Palavras-chave: Coloração, força de cisalhamento, ovinos, pH, sensorial AbstractThis study aimed to investigate the effect of diets with different proportions of concentrate in finishing lambs Texel on carcass characteristics and meat sheep. Twelve Texel lambs with an initial weight of 20.1 ± 2.34 kg were used. The treatments consisted of three levels of concentrate in the total ration (60,

The current study aims to assess the effect from crude glycerin inclusion (0, 7, 14, and 21% dry matter) in the diet of slaughtered lamb on their development, nutrient consumption, biometrical measures, diet economic viability and carcass features. Thirty two (32) non-castrated male Texel lambs were used in the study, they presented mean initial weight 15.9 ± 4.1 kilos and were distributed in casual outlining. They were fed with four treatments, with 8 repetitions. Animals were slaughtered when they reached approximately 35 kilos. The mean total weight gain was 20.72 kilos and mean daily weight gain was 260 grams. No changes resulted from glycerin use. The carcass performance was similar among treatments (P>0.05) and the cold carcass performance (CCP) was 44.68%. There were no effects (P>0.05) on the loin eye area (LEA) and on fat thickness (FT); they showed averages of 13.66 cm 2 and 0.84 mm, respectively. Nutrition cost per animal during the whole confinement period varied between R$82.60 (eighty-two Reais and forty-eight cents) to R$92.48. The smallest nutrition amount consisted of 21% crude glycerin. The gross profit ranged from R$30.75 to R$ 34.01 per animal, for feed without glycerin and 21% glycerin, respectively. Animal development was not impacted by glycerin introduction, even with decrease on dry and organic mass consumption. The result showed that crude glycerin inclusion might be used in lambs' diet. Whenever there are big amounts of feed involved in the process, the 21% crude glycerin addition may be an interesting cost reduction. Seventy eight percent (78%) glycerol crude glycerin to replace corn-based feed in confined lambs' diet appeared to be nutritionally and economically viable. ResumoO objetivo desta pesquisa foi avaliar o efeito dos teores de inclusão de glicerina bruta (0, 7, 14, e 21% da matéria seca) na dieta de cordeiros em terminação, sobre o desempenho, o consumo de nutrientes, as medidas biométricas, a viabilidade econômica da dieta e características da carcaça. Utilizou-se 32 cordeiros machos não castrados da raça Texel, com peso médio inicial de 15,9 ± 4,1 kg, distribuídos em delineamento inteiramente casualizado, com quatro tratamentos e oito repetições. Ao atingir o peso médio de 35 kg, os animais foram abatidos. O ganho de peso total foi em média 20,72 kg e o ganho de peso médio diário foi de 260 g e não sofreram alterações com o uso da glicerina. As características de rendimento de carcaça avaliadas se assemelharam entre os tratamentos (P>0,05) e o rendimento de carcaça fria (RCF) foi em média 44,68%. Não houve efeito (P>0,05) para área de olho de lombo (AOL) e espessura de gordura (EG), apresentando médias de 13,66 cm 2 e 0,84 mm, respectivamente. Os custos com alimentação por animal no período total de confinamento variaram entre R$82,60 a R$92,48, sendo o menor valor para o tratamentos contendo 21% de glicerina bruta. A margem bruta de lucro variou de R$30,75 a R$ 34,01 por animal, para ração sem glicerina e com 21% de glicerina, respectivamente. O desempenho anim...

This study aimed to evaluate the Texel lambs' meat quality fed with increasing levels of crude glycerin (0, 7, 14, and 21% of dry matter) in the diet. Thirthy-two-two non-castrated male Texel lambs were used, with initial weight of 15.9 ± 4.1 kg, using a completely randomized design with four treatments and eight repetitions, per treatment. Upon reaching the average weight of 35 kg, the animals were slaughtered. The meat chemical composition was similar among treatments (P>0.05) and total lipids and crude protein presented averages of 3.47 and 20.05 g 100g -1, respectively. No changes in pH, marbling, color, and water loss under pressure were observed. The shear force did not change among treatments and the texture can be considered soft, with average values of 5.48 kgf. There was a linear (P<0.05) decrease in odor values by the addition of glycerin and no significant differences (P>0.05) were observed for the attributes flavor, tenderness, juiciness, and overall acceptance among treatments. Fatty acids in higher proportions in the meat lamb were to C18:1n-9 (1298.90 mg 100g -1 ), C16:0 (709.07 mg 100g -1 ) and C18:0 (433.30 mg 100g -1 ), with percentages of 42.72, 23.07 and 14.35%, respectively. Significant difference according to the glycerin level in the diet was observed only for the margaric acid (C17:0) with an increasing linear effect, reaching 58.95 mg 100g -1 muscle to the group with 21% crude glycerin, corresponding to 1.77% of total fatty acids. The other fatty acids did not change, and provided a satisfactory result for conjugated linoleic acid (CLA), totaling about 6.1 mg 100 g -1 muscle, corresponding to 0.21% of total lipids. The use of glycerin in the diet for finishing lambs does not alter the characteristics of the meat, maintaining the product quality for consumption. ResumoObjetivou-se avaliar a qualidade da carne de cordeiros Texel alimentados com níveis crescentes de glicerina bruta (0, 7, 14 e 21% da matéria seca) na dieta. Trinta e dois cordeiros Texel machos não castrados foram avaliados, com peso inicial de 15,9 ± 4,1 kg, em delineamento inteiramente casualizado, com quatro tratamentos e oito repetições. Ao atingir o peso médio de 35 kg, os animais foram abatidos. A composição química da carne foi similar entre os tratamentos e as medias de lipídios totais e proteína bruta foram 3,47 e 20,05 g 100 g -1 , respectivamente. Não houve variações nos valores de pH, marmoreio, cor e perda de água por pressão. A força de cisalhamento não variou entre os tratamentos e a textura da carne pode ser considerada macia, com valores médios de 5,48 kg-f. Houve decréscimo linear nos valores de odor em função da adição de glicerina bruta e não houve diferença significativa para sabor, maciez, suculência, e aceitação geral entre os tratamentos. Os ácidos graxos encontrados em maiores proporções na carne de cordeiros foram C18:1n-9 (1298,90 mg 100g ), com porcentagens de 42,72, 23,07 e 14,35%, respectivamente. Foi observada diferença significativa em função do nível de glicerina na dieta apenas pa...

This study aimed to evaluate the effects of replacing oat hay with coffee husk in the diet of lambs on the intake and apparent digestibility of dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), non-fiber carbohydrate (NFC), neutral detergent fiber (NDF), and acid detergent fiber (ADF). The experimental design was 4×4 Latin square with four levels of replacement of oat hay with coffee husk (0, 7.5, 15, and 22.5%) with four individually housed Texel sheep. Intake and apparent digestibility coefficients were measured at four periods of 12 days. All orts and feces were collected, weighed, homogenized, and sampled. The use of coffee husk at up to 22.5% of the total DM in the diet of lambs improved the intake of nutrients. Except for NDF, no significant differences were observed for the apparent digestibility of other parameters (DM, OM, CP, EE, NFC, and the ADF). Coffee husk can be included at up to 22.5% of total dry matter in diets with 30% roughage and 70% concentrate, being a good alternative to reduce feed costs in lamb production.

<p>The current study aims to assess the effect from crude glycerin inclusion (0, 7, 14, and 21% dry matter) in the diet of slaughtered lamb on their development, nutrient consumption, biometrical measures, diet economic viability and carcass features. Thirty two (32) non-castrated male Texel lambs were used in the study, they presented mean initial weight 15.9 ± 4.1 kilos and were distributed in casual outlining. They were fed with four treatments, with 8 repetitions. Animals were slaughtered when they reached approximately 35 kilos. The mean total weight gain was 20.72 kilos and mean daily weight gain was 260 grams. No changes resulted from glycerin use. The carcass performance was similar among treatments (P&gt;0.05) and the cold carcass performance (CCP) was 44.68%. There were no effects (P&gt;0.05) on the loin eye area (LEA) and on fat thickness (FT); they showed averages of 13.66 cm2 and 0.84 mm, respectively. Nutrition cost per animal during the whole confinement period varied between R$82.60 (eighty-two Reais and forty-eight cents) to R$92.48. The smallest nutrition amount consisted of 21% crude glycerin. The gross profit ranged from R$30.75 to R$ 34.01 per animal, for feed without glycerin and 21% glycerin, respectively. Animal development was not impacted by glycerin introduction, even with decrease on dry and organic mass consumption. The result showed that crude glycerin inclusion might be used in lambs’ diet. Whenever there are big amounts of feed involved in the process, the 21% crude glycerin addition may be an interesting cost reduction. Seventy eight percent (78%) glycerol crude glycerin to replace corn-based feed in confined lambs’ diet appeared to be nutritionally and economically viable.</p><p><strong> </strong></p>