| Revista: | Anais da Academia Brasileira de Ciencias |
| Base de datos: | PERIÓDICA |
| Número de sistema: | 000436332 |
| ISSN: | 0001-3765 |
| Autores: | Rizk, Yasser S1 Fahim, Hany N1 Beshara, Malak M1 Mahrose, Khalid M2 Awad, Awad L1 |
| Instituciones: | 1Ministry of Agriculture, Agricultural Research Center, Dokki, Giza. Egipto 2Zagazig University, Faculty of Technology and Development, Zagazig, Sharqiya. Egipto |
| Año: | 2019 |
| Volumen: | 91 |
| Número: | 4 |
| País: | Brasil |
| Idioma: | Inglés |
| Tipo de documento: | Artículo |
| Enfoque: | Aplicado, descriptivo |
| Resumen en inglés | A total number of 300 (225 ducks and 75 drakes) Sudani ducks, 28-wk-old were divided into five groups to investigate the effects of dietary L-carnitine (LC) supplementation on productive, hatching and physiological performance as well as nutrients digestibility coefficients. The results indicated that the productive performance and Semen quality parameters (ejaculate volume, sperms concentration and advanced motility) were significantly improved by LC supplementation (150-450 mg /kg diet) as compared to the control. Hatchability of fertile eggs (%) was significantly improved, while total embryonic mortality was significantly decreased by supplementing 300 and 450 mg LC/kg diet. Supplementing different dietary LC levels resulted in significantly high values of hemoglobin, red and white blood cells count and lymphocyte (L) cells percentage, while it decreased heterophils (H) cells and H/L ratio. Serum albumin, total cholesterol and AST enzyme values were significantly low in ducks fed diets supplemented with LC. Serum triglycerides were significantly the lowest by feeding 300 and 450 mg LC/kg diet. Nutrients digestibility coefficients were significantly improved in drakes fed diet supplemented with 450 mg LC/kg diet. Conclusively, dietary LC supplementation at 300 or 450 mg/kg for duck breeders in summer could improve productive, hatching and physiological performance and nutrients digestibility coefficients |
| Disciplinas: | Medicina veterinaria y zootecnia |
| Palabras clave: | Aves de corral, Nutrición animal, Patos, Reproductores, Suplementación nutricional, L-carnitina, Rendimiento de puesta |
| Keyword: | Poultry, Animal nutrition, Ducks, Breeders, Nutritional supplementation, Laying performance, L-carnitine |
| Texto completo: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
