| Journal: | Veterinaria México OA |
| Database: | PERIÓDICA |
| System number: | 000439073 |
| ISSN: | 2007-5472 |
| Authors: | Martínez Aispuro, José A1 Sánchez Torres, María T1 Mendoza Martínez, Germán D2 Cordero Mora, José L1 Figueroa Velasco, José L1 Ayala Monter, Marco A3 Crosby Galván, María M1 |
| Institutions: | 1Colegio de Postgraduados, Campus Montecillo, Montecillo, Estado de México. México 2Universidad Autónoma Metropolitana, Departamento de Producción Agrícola y Animal, Ciudad de México. México 3Universidad Autónoma de Guerrero, Facultad de Medicina Veterinaria y Zootecnia, Cuajinicuilapa, Guerrero. México |
| Year: | 2018 |
| Season: | Oct-Dic |
| Volumen: | 5 |
| Number: | 4 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Calcium (Ca) propionate can be added to ruminant diets as a glucogenic substrate. However, due to its hypophagic effect, it is necessary to establish the optimal dose that can be used to replace grains in finishing diets for lambs. Therefore, the objective of this study was to assess the effect of four concentrations of Ca propionate in lamb diets on productive performance and rumen fermentation. Thirty two Hampshire x Suffolk lambs (23.82 ± 0.40 kg initial body weight), distributed in a completely randomized design, were given a diet with four concentrations of Ca propionate (g kg−1): 0, 10, 20 or 30 g, for 42 days. The results were tested for linear or quadratic responses. The final weight, average daily gain and feed: gain ratio showed quadratic responses (P ≤ 0.01). The optimal dose was established at 13.77 g kg−1 DM. Addition of Ca propionate did not affect variables related to rumen fermentation (pH, total volatile fatty acids, acetate, butyrate or rumen ammonia-N; P ≥ 0.05). Nonetheless, glucose and propionate concentrations showed a quadratic response (P ≤ 0.05). The highest concentrations of propionate in rumen were observed with 15.14 g kg−1 DM. Results indicate that Ca propionate can be included in a dose of up to 13.77 g kg−1 DM in feedlot rations, to attain best lamb performance |
| Disciplines: | Medicina veterinaria y zootecnia, Biología |
| Keyword: | Ovinos y caprinos, Fisiología animal, Nutrición animal, Corderos, Propionato de calcio, Energía metabolizable, Acidos grasos volátiles, Glucosa |
| Keyword: | Sheep and goats, Animal physiology, Animal nutrition, Lambs, Calcium propionate, Volatile fatty acids, Glucose, Metabolizable energy |
| Full text: | Texto completo (Ver HTML) Texto completo (Ver PDF) |
