Biometria da carcaça e peso de vísceras e de órgãos internos de bovinos mestiços alimentados com diferentes volumosos e fontes protéicas

Macitelli, Fernanda; Berchielli, Telma Teresinha; Silveira, Roselene Nunes da; Andrade, Pedro de; Lopes, André Dias; Sato, Kátia Junko; Barbosa, José Carlos

doi:10.1590/s1516-35982005000500037

Cited by 18 publications

(15 citation statements)

References 15 publications

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“…Macitelli et al (2005) also observed this same trait in a work with diets with sugar cane, corn silage and pasture, because the weights of stomach content and gastrointestinal content were greater for animals fed sugar cane, resulting in a lower empty body weight for those animals, a fact possibly explained by the inferior quality of NDF of the sugar cane and because of its greater content of NDFi in relation to the other grasses which composed the diet.…”

Section: Resultsmentioning

confidence: 71%

Intake and performance of confined bovine fed fresh or ensilaged sugar cane based diets and corn silage

Menezes¹,

Filho²,

Magalhães³

et al. 2011

R. Bras. Zootec.

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-It was evaluated intake, total apparent digestibility, performance and feeding behavior of bovine fed diets constituted of corn silage, crushed sugar cane given fresh or crushed and given 72 hours after storage, ensilaged sugar cane with or without 1% of calcium oxide and concentrate at the proportion of 1% of the body weight. It was used 35 bovines, distributed in a random block design, with 5 treatments and 6 repetitions. The animals were housed in collective stalls with troughs individualized by electronic gates. The animals fed diet with corn silage presented greater intake of all nutrients and greater total digestibility of dry matter, organic matter, neutral detergent fiber and total digestible nutrients, as well as greater weight gain and subcutaneous fat thickness. Animals fed diet with fresh sugar cane presented greater nutrient intake as well as better dry matter digestibility, ether extract and TDN content and a superior performance in relation to animals fed ensilaged sugar cane diets. Animals fed silage of sugar cane with calcium oxide presented greater digestibility of organic matter, NFC and content of TDN but they did not differ on performance in relation to the use of silage of sugar cane without calcium oxide. Intake and performance of animals did not change with or without storage of sugar cane. It was concluded that animals fed diets with corn silage present performances superior to the ones which are fed sugar cane based diets, and animals fed fresh sugar diet are superior to the animals fed diets with sugar cane silage.Key Words: bovine, carcass, digestibility, electronic gates, feedlot, weight gain Consumo e desempenho de bovinos confinados com dietas à base de cana-de-açúcar fresca ou ensilada e silagem de milho RESUMO -Avaliaram-se o consumo, digestibilidade aparente total, desempenho e comportamento alimentar de bovinos alimentados com dietas constituídas de silagem de milho, cana-de-açúcar triturada e fornecida in natura ou triturada e fornecida após 72 horas de armazenamento, cana-de-açúcar ensilada sem ou com 1% de cal e concentrado fixado em 1% do peso corporal. Utilizaram-se 35 bovinos, distribuídos em delineamento com blocos casualizados, com 5 tratamentos e 6 repetições. Os animais foram alojados em baias coletivas com cochos individualizados por portões eletrônicos. Os animais alimentados com dieta contendo silagem de milho apresentaram maior consumo de todos os nutrientes e digestibilidade total da matéria seca, matéria orgânica, fibra em detergente neutro e teor de nutrientes digestíveis totais, assim como maior ganho de peso e espessura de gordura

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Section: Resultsmentioning

confidence: 71%

Intake and performance of confined bovine fed fresh or ensilaged sugar cane based diets and corn silage

Menezes¹,

Filho²,

Magalhães³

et al. 2011

R. Bras. Zootec.

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“…Segundo Rohr & Daenicke (1984) o conteúdo do TGI é proporcional ao tamanho das partículas do alimento e inversamente proporcional à digestibilidade da forragem. Macitelli et al (2005) também verificaram que o retículo-rúmen foi maior em animais alimentados com silagem de cana-de-açúcar em relação aos alimentados com silagem de milho e pastagem de Brachiaria brizantha. Esses autores atribuíram esse aumento ao maior tamanho de partícula da silagem de cana em relação aos demais volumosos, já que, na dieta com cana, o teor de fibra em detergente neutro (FDN) foi menor.…”

Section: Resultsunclassified

Partes não-integrantes da carcaça de tourinhos alimentados com diferentes níveis de concentrado na dieta

Missio¹,

Brondani

Restle

et al. 2009

R. Bras. Zootec.

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RESUMO -O objetivo neste estudo foi avaliar as partes não-integrantes da carcaça de tourinhos abatidos entre 14 e 16 meses de idade alimentados com diferentes níveis de concentrado na dieta. Os animais foram terminados em confinamento até atingirem em média 400 kg de peso vivo. Foram utilizados 16 tourinhos alimentados com 22, 40, 59 ou 79% de concentrado na dieta, distribuídos inteiramente ao acaso, com quatro repetições por tratamento. A idade e o peso médio inicial dos animais foram de 9,32 meses e 192,44 kg, respectivamente. O peso de corpo vazio (PCVZ) e o rendimento de carcaça expresso em valores ajustados para o PCVZ foram similares entre os níveis de concentrado na dieta. O aumento no nível de concentrado na dieta promoveu diminuição linear do peso absoluto de intestino e aumentos lineares dos pesos absolutos da gordura ruminal e do abomaso. Quando os componentes foram expressos em valores ajustados para PCVZ e peso de abate (PA), verificaram-se aumentos lineares para pesos de patas, coração, intestinos, gordura de toalete, gordura do rúmen, conteúdo do trato gastrintestinal e conteúdo de gordura interna e diminuição linear do peso de cabeça e omaso com o aumento do nível de concentrado na dieta. O peso de abomaso foi quadraticamente influenciado pelo nível de concentrado, com valores mínimos estimados para os níveis de 68,0; 66,7 e 69,2% de concentrado na dieta, em relação ao peso absoluto, ajustado para o PCVZ e PA, respectivamente. O aumento do nível de concentrado de 22 para 79% promoveu aumento nos pesos relativos do conteúdo do trato gastrintestinal e gordura interna e não influenciou o conjunto dos órgãos internos, o peso de corpo vazio e o rendimento de carcaça ajustado para o PCVZ de tourinhos abatidos aos 14-16 meses com 400 kg.Palavras-chave: couro, gordura interna, peso de corpo vazio, rúmen-retículo Non-integrant components of the carcass from young bulls fed different concentrate levelsABSTRACT -The objective of this trial was to evaluate the non-integrant body components of the carcass from young bulls slaughtered at 14-16 months of age, fed different concentrate levels in the diet. The animals were feedlot finished until reaching 400 kg of body weight. Sixteen bulls were randomly distributed into four treatments: 22; 40; 59 or 79% concentrate in the diet. The initial average age and weight were 9.3 months and 192.4 kg, respectively. The empty body weight (EBW) and carcass dressing ajusted for empty body weight were similar among the different concentrate levels. The increase in the concentrate level in the diet promoted linear decrease for intestine absolute weight, and linear increase for ruminal and abomasum absolute fat weight. When the components were expressed as adjusted EBW values and slaughter weight (SW), linear increases were observed for weight of feet, heart, intestine, trim fat, ruminal fat, gastrintestinal tract content and internal fat, and linear decreases were observed for weight of head and omasum as the concentrate level increased. The response of the abomasum weight ac...

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“…During the ensiling of sugarcane, an excessive loss of dry matter occurs, which is reflected in terms of animal performance. However, the evaluation of empty body weight (Macitelli et al, 2005) indicated that the beef cattle fed on sugarcane had higher weights of stomach and gastrointestinal contents, resulting in a lower empty body weight for these animals, a fact possibly could be explained by the inferior quality of NDF of the sugarcane and its greater content of NDFi in relation to the other grasses that composed the diet. However, no improvement in the performance of the animals was observed (Abrahão et al, 2007) when fed on sugarcane in natura, not even with a higher concentrate in the diet.…”

Section: Resultsmentioning

confidence: 99%

The Performance of Steers Fed on Sugarcane in natura or Ensiled with Concentrate

Vieira¹,

Cezário²,

Santos³

et al. 2017

JAS

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The aim of this study was to evaluate the performance of crossbred Holstein × Zebu steers fed on the diets containing sugarcane in natura or ensiled with two levels of concentrate (30% and 70%). A total of 32 males of 394 kg of body weight were used in a completely randomized experimental design with four treatments and seven repetitions. The animals reported a high dry matter intake (DMI) (P < 0.05) when fed on the high concentrate levels. The increase in concentrate levels resulted in an approximately 25% to 60% higher DMI as compared to the lowest level offered by silage-based diets and sugarcane in natura. The highest apparent digestibility coefficients of dry matter were observed in the diets based on sugarcane in natura (P < 0.05). The sugarcane based diets also affected (P > 0.05) the digestibility of organic matter, neutral detergent fiber, crude protein, ether extract, and non-fiber carbohydrates. There were no differences (P > 0.05) between the diets for average daily weight gain, carcass dressing, carcass gain, and feed conversion. The diets based on sugarcane in nature or ensiled with 30% and 70% concentrates do not influence the performance of crossbred Holstein × Zebu cattle.

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Biometria da carcaça e peso de vísceras e de órgãos internos de bovinos mestiços alimentados com diferentes volumosos e fontes protéicas

Cited by 18 publications

References 15 publications

Intake and performance of confined bovine fed fresh or ensilaged sugar cane based diets and corn silage

Intake and performance of confined bovine fed fresh or ensilaged sugar cane based diets and corn silage

Partes não-integrantes da carcaça de tourinhos alimentados com diferentes níveis de concentrado na dieta

The Performance of Steers Fed on Sugarcane in natura or Ensiled with Concentrate

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