Silagem De Sorgo Com E Sem Tanino Em Substituição À Silagem De Milho Na Alimentação De Ovinos: Desempenho E Características De Carcaça

Alves, Evanilton Moura; Pedreira, Márcio dos Santos; Aguiar, Luzyanne Varjão; Coelho, Cristiane Pedreira; Oliveira, Carlos Alberto Santana de; Silva, Antonio Márcio Pereira

doi:10.5216/cab.v13i2.8261

Cited by 8 publications

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“…The percentage of loss can be associated with the finishing of the animal, once during the cooling process carcasses are protected by fat cover, serving as a way to assess the quality of the cooling to which the carcass has been subjected. The average percentage of loss in this study was 3.07%, which can be considered good when compared with other authors (GONZAGA NETO et al, 2006;DANTAS et al;ALVES et al, 2012a), which reported values above 5%. This indicates that the minimum thickness of subcutaneous fat obtained (2.48 mm) was sufficient to protect the carcass against low temperature and consequent cold shortening.…”

Section: Resultssupporting

confidence: 72%

“…The average percentage of 59.09% in this study can be considered good as it was superior to several other results in the literature for Santa Ines sheep (ALVES et al, 2003;GONZAGA NETO et al, 2006;CUNHA et al, 2008;DANTAS et al, 2008;ALVES et al, 2012a In these studies the yield was influenced by the weight at slaughter, the lighter the animal the lower the yield, by the diet, in which animals fed diets with higher quality or with more concentrate tend to exhibit a greater carcass yield. The percentage of weight loss by cooling was not changed (p > 0.05) by the type of diet received by the animals.…”

Section: Resultscontrasting

confidence: 40%

“…Fasting losses are determined by the difference between the average final body weight and at slaughter, and are related to the emptying of the gastrointestinal tract, which varies depending on the rate of passage of food, and the body size of the animal. Alves et al (2003) worked with sheep and found that increasing the proportion of forage in the diet increased the percentage of loss by fasting, explaining that the emptying of the gastrointestinal tract occurred more slowly, probably after the measurement of body weight. In this research, forage: concentrate ratio was similar for all diets, the greatest degradability of forage with the inclusion of slow-release urea in the diet could modify the rate of passage and therefore the emptying of the gastrointestinal tract, but it probably did not occur.…”

Section: Resultsmentioning

confidence: 99%

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<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea

Alves

Pedreira

Moreira

et al. 2014

Acta Sci. Anim. Sci.

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ABSTRACT. This study aimed to evaluate the effects of adding slow-release urea to replace conventional urea in the diet on carcass characteristics of feedlot sheep. We used 20 Santa Ines x SRD rams, with average body weight of 21.1±1.2 kg and average age of 120 days, distributed in a completely randomized design with 5 treatments. The replacement levels used as treatments were 0, 20, 40, 60, and 80%, composing diets of about 12% crude protein, with 50 % Tifton-85 hay and 50% concentrate. There was no influence of slow release urea on weight at slaughter (35.17 kg), and on hot (16.75 kg) and cold (16.24 kg) carcass weight, but the yield of these carcasses showed quadratic trend, revealing lower percentages at 48.5 and 47.63% replacement levels, respectively. The weights and yields of cuts did not change, except for the posterior arm, whose values showed a cubic trend. Objective measures of carcass, loin eye area, and subjective evaluations of conformation, finishing and marbling of carcasses were not affected. The subcutaneous fat thickness decreased linearly (4.25 to 2.48 mm). The inclusion of slow release urea in the diet changes the yield and reduces subcutaneous fat, however, it does not influence other carcass characteristics.Keywords: meat cuts, non-protein nitrogen, nutrition, small ruminants, yield.Características de carcaça de ovinos alimentados com dietas contendo ureia de liberação lenta em substituição à ureia convencional RESUMO. Objetivou-se avaliar os efeitos da inclusão de ureia de liberação lenta em substituição à ureia convencional na dieta sobre as características de carcaça de ovinos confinados. Foram utilizados 20 ovinos Santa Inês x SRD, machos não castrados, com peso corporal inicial de 21,1±1,2 kg e idade média de 120 dias, distribuídos nos tratamentos na forma de delineamento inteiramente casualizado. Os níveis de substituição utilizados como tratamentos foram 0; 20; 40; 60 e 80%, compondo dietas de aproximadamente 12% de proteína bruta, com 50% de feno de capim tifton-85 e 50% de concentrado. Não houve influência da ureia de liberação lenta sobre o peso corporal ao abate (35,17 kg) e os pesos de carcaça quente (16,75 kg) e fria (16,24 kg), entretanto, os rendimentos dessas carcaças apresentaram comportamento quadrático, revelando menores percentuais aos níveis de substituição de 48,5 e 47,63%, respectivamente. Os pesos e rendimentos dos cortes não variaram, exceto para o braço posterior, cujos valores apresentaram comportamento cúbico. As medidas objetivas da carcaça, área de olho de lombo, e as avaliações subjetivas de conformação, acabamento e marmoreio das carcaças não foram influenciadas. A espessura de gordura subcutânea decresceu de forma linear (4,25 a 2,48 mm). A inclusão de ureia de liberação lenta na dieta altera os rendimentos e reduz a gordura subcutânea, contudo, não influencia nas demais características da carcaça.Palavras-chave: cortes cárneos, nitrogênio não proteico, nutrição, pequenos ruminantes, rendimento.

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Section: Resultssupporting

confidence: 72%

Section: Resultscontrasting

confidence: 40%

Section: Resultsmentioning

confidence: 99%

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<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea

Alves

Pedreira

Moreira

et al. 2014

Acta Sci. Anim. Sci.

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“…Alves et al (2012) found hot and cold carcass yields of 47.29 and 45.49%, respectively, in feedlot lambs fed diets containing sorghum silages with high tannin. According to Cezar (2004), the biological yield best represents the components of the carcass because it eliminates variations influenced by the abiotic content.…”

Section: Resultsmentioning

confidence: 99%

Carcass characteristics of lambs fed diets containing silage of different genotypes of sorghum

et al. 2014

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-Thirty-five feedlot lambs (without defined breed, aged between 5 and 7 months, with average live weight of 17.7±3.7 kg) were used in a completely randomized design to evaluate the effect of diets containing different genotypes of sorghum on morphometric measurements and qualitative characteristics of carcass and yields of primal cuts. The animals stayed in individual indoor pens for 42 days and slaughtered at an average weight of 26.24 kg. No significant differences were observed on morphometric measurements, hot (11.67 kg) and cold (11.39 kg) carcass weight, hot (44.46%) and cold (43.37%) carcass yields, biological yield and on cooling losses. There was also no significant effect of silages of different genotypes of sorghum on the weights and yields of retail cuts (neck, shoulder, rib, loin and leg) and on the subjective evaluation of carcasses. It is possible to finish sheep without defined breed feeding them diets based on silages of sorghum, resulting in carcasses with high yield and good conformation.

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“…Para confecção de silagens, o milho tem sido a forrageira que mais se destaca quanto aos aspectos nutricionais e de adequação ao processo fermentativo (ALVES et al, 2012), no entanto, podese utilizar uma grande variedade de gramíneas e leguminosas (RODRIGUES et al, 2001). …”

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Valor nutricional de silagem de capim-mombaça com aditivos agroindustriais

et al. 2014

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ResumoObjetivou-se avaliar a composição química da silagem de capim-mombaça associada com diferentes aditivos em quatro tempos de abertura do silo. O experimento foi conduzido na UFGD. Após a colheita da forragem, a biomassa in natura triturada, foi levada ao laboratório, homogeneizada e enriquecida, na base da massa natural, com os seguintes aditivos: 5% de farelo de trigo, 5% de resíduos (grão quebrado e casquinha de soja) de soja, 5% de ureia da matéria natural e a testemunha (sem aditivo). Os silos foram abertos após (matéria in natura), 15, 30 e 45 dias, para a análise da composição química. Os dados obtidos foram analisados por meio do programa estatístico SISVAR e as médias foram comparadas a 5% de probabilidade, pelo teste de Skott-Knot. A silagem de capim-mombaça sem aditivo apresentou maior (P<0,05) teor de matéria seca em relação aos demais tratamentos no tempo 0 e 30 dias de ensilado e não diferiu (P>0,05) da silagem de capim-mombaça associada com 5% de ureia nos dias 15 e 45 de ensilagem. A silagem de capim-mombaça com 5% de ureia apresentou maior teor de proteína bruta no tempo 0 de abertura e diferiu dos demais tratamentos. A silagem de mombaça associada com 5% de ureia proporcionou maior digestibilidade in vitro da matéria seca aos 15 dias de ensiladas. Palavras-chave: Conservação de forragens, nutrição animal, panicum maximum, valor nutricional AbstractIt was aimed to evaluate the chemical composition of grass silage-mombasa associated with different additives in four times of opening the silo. The experiment was conducted in UFGD. After harvesting the forage, biomass in natura crushed, was taken to the lab, homogenized and enriched on the basis of natural mass, with the following additives: 5% wheat bran, 5% of waste (broken grain and soy ice cream cone) of soybean, 5% urea in natural matter and the witness (without additive).The silos were opened after (unprocessed material), 15, 30 and 45 days, for the analysis of chemical composition. The data obtained were analyzed through the statistical programme SISVAR and averages were compared to 5% of probability, by Skott-Knot. The grass silage-mombasa without additive presented major (P<0.05) dry matter content compared to other treatments at time 0 and 30 days of silage and did not differ (P>0.05) of grass silage-mombasa associated with 5 of urea in 15 days and 45 of silage. The grass

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Silagem De Sorgo Com E Sem Tanino Em Substituição À Silagem De Milho Na Alimentação De Ovinos: Desempenho E Características De Carcaça

Cited by 8 publications

References 8 publications

<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea

<b>Carcass characteristics of sheep fed diets with slow-release urea replacing conventional urea

Carcass characteristics of lambs fed diets containing silage of different genotypes of sorghum

Valor nutricional de silagem de capim-mombaça com aditivos agroindustriais

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