| Revista: | Scientia Agricola |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000455524 |
| ISSN: | 0103-9016 |
| Autores: | Polizel, Daniel Montanher1 Martins, André Storti2 Miszura, Alexandre Arantes2 Ferraz-Júnior, Marcos Vinícius de Castro3 Bertoloni, Analisa Vasques2 Oliveira, Gabriela Bagio2 Barroso, José Paulo Roman2 Ferreira, Evandro Maia1 Pires, Alexandre Vaz1 |
| Instituciones: | 1Universidade de Sao Paulo, Escola Superior de Agricultura "Luiz de Queiroz", Piracicaba, Sao Paulo. Brasil 2Universidade de Sao Paulo, Faculdade de Medicina Veterinaria e Zootecnia, Pirassununga, Sao Paulo. Brasil 3Universidade Federal do Amazonas, Departamento de Zootecnia, Parintins, Amazonas. Brasil |
| Año: | 2021 |
| Volumen: | 78 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, aplicado |
| Resumen en inglés | Two experiments were proposed to evaluate the addition of monensin for lambs fed diets containing a high level of mature ground flint corn. The experimental diets were as follows: no inclusion of monensin (M0) and inclusion of 8 (M8), 16 (M16) and 24 mg kg–1 of monensin (M24). In experiment 1, eight cannulated wethers were divided into a double 4 × 4 Latin square experimental design to evaluate nutrient digestibility, plasma parameters and rumen fermentation. The experiment lasted 112 days, divided into four periods of 28 days each. In experiment 2, ninety-two lambs were used in a randomized block design to evaluate the performance over 56 days. In experiment 1, doses of monensin had no effect on nutrient intake (p ≥ 0.07) and digestibility (p ≥ 0.09). There was a quadratic effect for acetate molar proportion (p = 0.01), acetate to propionate ratio (p = 0.04) and rumen pH (p < 0.01). However, there was no effect on the molar proportion of propionate and butyrate. The monensin decreased linearly the total SCFA concentration (p < 0.01). The inclusion of monensin increased glucose (p < 0.01) and decreased lactate concentration in plasma (p = 0.05). In experiment 2, monensin decreased dry matter intake (p = 0.04). However, there was a quadratic effect for average daily gain (p = 0.03) and feed efficiency (p < 0.01), with the greatest values observed for the M8 diet. Thus, the inclusion of 8 mg kg–1 of dry matter diet (DM) improves ruminal fermentation and plasma parameters, resulting in greater growth performance in lambs |
| Disciplinas: | Medicina veterinaria y zootecnia |
| Palabras clave: | Ovinos y caprinos, Nutrición animal, Corderos, Monensina, Maíz, Eficiencia alimenticia |
| Keyword: | Sheep and goats, Animal nutrition, Lambs, Feed efficiency, Monensin |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
