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| Salinas-Chavira,Jaime; Lara-Juarez,Alfredo; Gil-González,Abraham; Jimenez-Castro,Jorge; Garcia-Castillo,Ramón; Ramírez-Bribiesca,Efrén. |
| The effects of supplementing feedlot diets with ionophores and breed type were assessed on growth rate and carcass characteristics in hair lambs. Twenty four intact males, 12 Pelibuey × Dorper (PDo) and 12 Pelibuey × Damara (PDa) lambs, 17.9 ± 3.7 kg initial weight, were housed in individual pens for a 60-d feeding trial. The lambs were assigned randomly into four diets: control without additives (C); 25 µg/g monensin (M); 28 µg/g salinomycin (S); 28 µg/g S for 20 d, and 25 µg/g M for the next 40 d (SM). Each diet was supplied to six lambs. Data were analyzed as a randomized complete block design in a 4 × 2 factorial arrangement, with four diets and two breed types of hair lambs (PDo and PDa). All diets were formulated to contain 14% CP and 2.6 Mcal ME/kg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Feed additives; Hair lambs; Fattening; Longissimus dorsi; Subcutaneous fat. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000300024 |
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| Ribeiro,A.D.B.; Ferraz Junior,M.V.C.; Polizel,D.M.; Miszura,A.A.; Gobato,L.G.M.; Barroso,J.P.R.; Susin,I.; Pires,A.V.. |
| ABSTRACT Two experiments were conducted to evaluate the effect of thyme (Thymus vulgaris) essential oil (EO) doses on rumen fermentation, nutrient digestibility, and nitrogen metabolism, as well as performance and coccidia oocyst discharge. In experiment I, 20 rumen-cannulated wethers received the experimental diets containing 80% dry matter (DM) of haylage and 20% DM of concentrate. Treatments were 25mg of monensin/kg DM or doses of 1.25, 2.50, or 3.75g of thyme EO/kg DM. In experiment II, 50 ewe lambs received the same diets from experiment I, including a diet without feed additives. Wethers fed with diets containing 1.25g/kg DM of thyme EO had higher molar proportion of propionate (P= 0.03) and butyrate (P< 0.01), and lower (P= 0.04) acetate to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coccidiosis; Feed additives; Forage; Monensin; Performance. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352019000602065 |
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