| Revista: | Revista Brasileira de Zootecnia |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000445699 |
| ISSN: | 1516-3598 |
| Autores: | Cruz, Antonio Ariclezio Carlos1 Véras, Antonia Sherlânea Chaves1 Oliveira, Júlio César Vieira de2 Santos, Djalma Cordeiro dos2 Chagas, Juana Catarina Cariri3 Neves, Maria Luciana Menezes Wanderley1 Monteiro, Carolina Corrêa de Figueiredo1 Ferreira, Marcelo de Andrade1 |
| Instituciones: | 1Universidade Federal Rural de Pernambuco, Departamento de Zootecnia, Recife, Pernambuco. Brasil 2Instituto Agronomico de Pernambuco, Estacao Experimental de Arcoverde, Arcoverde, Pernambuco. Brasil 3Swedish University of Agricultural Sciences, Umea, Vasterbotten. Suecia |
| Año: | 2020 |
| Volumen: | 49 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Experimental, analítico |
| Resumen en inglés | This study was performed to identify the ideal amount of concentrate required for a diet based on cactus cladodes, sugarcane, and urea used to feed heifers. Twenty Girolando heifers (160±8.39 kg) were randomly distributed into four experimental treatments with 0, 0.40, 0.80, or 1.20 kg day−1 of concentrate. The basal diet contained [on dry matter (DM) basis] 38.1% sugarcane, 56.5% cactus cladodes [ Opuntia stricta (Haw). Haw.], 0.5% common salt, 1.1% mineral mixture, and 3.8% urea plus ammonium sulfate. The concentrate contained [on DM basis] 87% corn meal and 13% soybean meal. The basal diet and the concentrate were formulated to provide 13% crude protein (CP). The intake of DM (4.34-4.96 kg day−1), organic matter (3.96-4.98 kg day−1), CP (0.57-0.64 kg day−1), non-fibrous carbohydrates (2.20-2.61 kg day−1), and metabolizable energy (10.3-12.4 Mcal day−1) increased linearly with concentrate amount. Final body weight (196-224 kg), total body weight gain (36.9-61.2 kg), and average daily body weight gain (0.51-0.85 kg day−1) increased linearly with concentrate amount. The nitrogen balance was positive and increased linearly (54.8-62.3 g day−1) with concentrate amount. Based on the data, we recommend supplying six-month-old Girolando heifers (160 kg body weight) 1.20 kg concentrate day−1 added to a diet based on sugarcane and cactus cladodes plus urea for better productive and economic performance |
| Disciplinas: | Medicina veterinaria y zootecnia |
| Palabras clave: | Bovinos, Nutrición animal, Caña de azúcar, Nopal, Urea, Novillas, Girolando, Leche |
| Keyword: | Bovines, Animal nutrition, Sugar cane, Nopal, Heifers, Milk, Girolando |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
