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| Registros recuperados: 13 | |
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| Correa-Calderón,A.; Morales,M.; Avendaño,L.; Leyva,C.; Rivera,F.; Díaz,R.; Soto-Navarro,S.. |
| The effects of a cooling system on productive efficiency and welfare of Holstein steers were evaluated during the summer. Sixty steers in the finishing phase were randomly allotted to one of two treatment-groups. Animals of control group were only provided with shade (non-cooled group) and a group of animals under a cooling system were installed in the shaded area (cooled group), which were operated daily from 09am to 6pm during the 69d of the study. The averages of environmental temperature and relative humidity were 35.4°C and 35.3%, respectively, with a temperature-humidity index average of 81.4 during the study. Individual body weight was recorded every two weeks, while body surface temperature and respiratory frequency were recorded three times per... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Steer; Cooling system; Feedlot; Heat stress; Performance. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000500024 |
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| Gomes,R.C.; Leme,P.R.; Silva,S.L.; Antunes,M.T.; Guedes,C.F.. |
| To evaluate the effects of the supplementation of feed additives on carcass quality in beef cattle, 72 Nellore steers (339.5kg, 20-month old) were feedlot finished and fed for 91 days one of the following diets: 1) control with no additives; or added of 2) live yeast culture; 3) monensin; or 4) the association of both additives. After slaughter, renal, pelvic, and inguinal fat and hot carcass weights were recorded and carcass was split into muscle, bone, and trimmable fat. Carcass Longissimus muscle area and subcutaneous fat thickness at the 12th rib were measured and steaks of Longisimus muscle were taken to determine meat color, shear force, drip, and cooking losses. Yeast increased carcass dressing percentage but there were no effects on hot carcass... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Steer; Direct-fed microbial; Ionophores; Retail product yield; Shear force; Saccharomyces cerevisiae. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352009000300018 |
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| 日高, 智; 岩谷, 渡; 松長, 延吉; 左, 久; HIDAKA, Satoshi; IWAYA, Wataru; MATSUNAGA, Nobuyoshi; HIDARI, Hisashi. |
| ホルスタイン種去勢牛の肥育では，濃厚飼料を多給した集約的な飼養が行われているために，肝膿瘍や合併症に罹患した牛が多い. しかし，その発生状況や疾病が格付成績に及ぽす影響についてはよく知られていない.そこで本試験では， 肝膿瘍と合併症の発生状況を調査し，これらの疾病が枝肉重量，枝肉格付成績に及ぼす影響を，さらに疾病が与える経済的損失を検討した. 1993年4月から1994年3月までの1年間に十勝管内A町から出荷され，十勝畜産公社で解体された16,226頭のホルスタイン種去勢肥育牛の屠畜検査成績，枝肉格付成績を用いた.また，疾病牛の枝肉重量の減少と肝臓の廃棄損失から疾病による経済的損失額を試算した.供試牛のうちなんらかの疾病を持つ牛は，9,288頭で全供試牛の57%を占め，肝膿蕩擢患牛は32%で，その発生は5，6月および11-2月に多かった.肝膿瘍罹患牛のうち56%がlつ以上の合併症を併発しており，合併症では横隔膜炎，胃炎およひ小腸炎が多くみられた.正常牛と比べ肝膿瘍罹患牛では，合併症の数が増加するほど枝肉重量が減少した.枝肉格付成績では，正常牛と比較して，肝膿瘍と合併症が2つ以下の牛ではほぼ同様であった.しかし，合併症が3つ以上の牛では， B-3の割合が減少し， B-2，... |
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Palavras-chave: ホルスタイン種; 去勢牛; 肝膿瘍; 合併症; 枝肉格付; Holstein; Steer; Liver Abscess; Complications; Carcass Grade. |
| Ano: 1997 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2835 |
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| SALVIANO, L. M. C.; NUNES, M. do C. F. S.. |
| Este experimento foi conduzido no campo de Manejo da Caatinga do CPATSA-EMBRAPA em Petrolina, PE. O objetivo principal era avaliar o efeito da adicao de 2,5 kg de feno de manicoba no ganho de peso de novilhos alimentados com feno de capim buffel. O delineamento experimental adotado foi o completamente casualizado com dois tratamentos e quatro repeticoes. A adica ode feno de manicoba elevou substancialmente o consumo de forragem de capim buffel, passando de 5,16 para 7,09 kg/cab/dia, ou de 2,17 para 2,73 kg/100 kg de peso vivo. Em termos de ganho de peso, a adicao de feno de manicoba provocou um aumento de 473%, passando de 132 g para 757 g/cab/dia. |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Capim bufel; Manihot pseudozlaziovii; Buffel grass; Feeding supplementation; Fiedlot; Steer; Hoy; Feed; Pasture.; Pastagem; Cenchrus ciliaris; Confinamento; Feno; Maniçoba; Novilho; Suplemento Alimentar.; Cassava.. |
| Ano: 1991 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/133102 |
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| Chizzotti,F.H.M.; Pereira,O.G.; Valadares Filho,S.C.; Tedeschi,L.O.; Ribeiro,K.G.; Pereira,D.H.. |
| A trial involving a 2x2 factorial arrangement of treatments was conducted to evaluate two corn silage hybrids (Agromen, AGN35-A42) and (Bayer, A3663) and concentrate levels (25 and 50%) on animal performance. Twenty-four Holstein x Zebu crossbred steers, averaging 335±30kg of BW, were distributed in six randomized blocks to evaluate intake, digestibility, and performance. Treatments consisted of 75% corn silage A + 25% concentrate, 50% corn silage A + 50% concentrate, 75% corn silage B + 25% concentrate, and 50% corn silage B + 50% concentrate (dry matter basis); formulated to be isonitrogenous (13% crude protein, dry matter basis). There were no differences in the daily intakes of dry matter (DM), organic matter (OM), and crude protein. Additionally,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Steer; Feedlot; Roughage; Total digestible nutrient. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000400016 |
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| CEZAR, I. M.; EUCLIDES FILHO, K.. |
| O cenário futuro indica claramente um avanço dos sistemas de produção em direção a intensificação. Neste contexto, o novilho precoce associado a redução da idade das fêmeas ao primeiro parto apresenta-se como uma mola propulsora da modernização dos sistemas produtivos. Varias são as alternativas passiveis de ser utilizadas para a produção de novilho precoce, sendo todas, quase sempre, resultantes de combinações envolvendo estratégias de alimentação e potencial genético do animal. A simulação de uma fazenda desenvolvendo as atividades de cria, recria e engorda, feita em computador, indicou que idade, por meio de suplementação alimentar a pasto, durante a primeira seca, e confinamento na segunda, reduz a área de pastagens em 18%, aumenta o desfrute anual em... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Bovino de corte; Aspecto econômico; Brasil; Steer; Production; Economic situation.; Novilho Precoce; Produção.; Brazil; Beef cattle.. |
| Ano: 1996 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/317315 |
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| 何, 茂龍; 盧, 尚建; 岡, 英之; 日高, 智; 松長, 延吉; 左, 久; He, Mao Long; Roh, Sang-Gun; Oka, Hideyuki; Hidaka, Satoshi; Matsunaga, Nobuyoshi; Hidari, Hisashi. |
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Palavras-chave: Fatty acid; Adipocytes; Steer; Cell diameter. |
| Ano: 1997 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2622 |
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| Registros recuperados: 13 | |
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