Ewes fed high-concentrate diets containing flint corn and increasing levels of exogenous amylolytic enzyme: effects on nutrient intake and digestibility
| Autor: | Luciano Fernandes Sousa, Jhone Thallison Lira de Sousa, Erica Beatriz Schultz, Tays Raniellen Miranda Feitosa, Vinicius Carreteiro Gomes, Robert Emilio Mora Luna, Gilberto de Lima Macedo Júnior |
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| Jazyk: | English<br />Portuguese |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Semina: Ciências Agrárias, Vol 44, Iss 3 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1679-0359 1676-546X |
| DOI: | 10.5433/1679-0359.2023v44n3p1197 |
| Popis: | The aim was to evaluate if the inclusion of exogenous amylolytic enzyme affect the nutrient intake and digestibility in ewes fed high-concentrate diets containing flint corn. Five Santa Inês × Dorper crossbred ewes (54.04 ± 4.5 kg and aged 8 months) were used in a 5 x 5 Latin square design. All animals were housed in individual metabolic cages for 60 days. The treatments consisted of a control diet (without amylolytic enzyme) and four inclusion levels of an amylolytic enzyme (3,000, 6,000, 9,000, and 12,000 α-amylase dextrinizing units [DU] kg-1 dry matter [DM]). The enzyme was mixed into the feed at the time of supply to the animals. Data were analyzed by ANOVA, and orthogonal polynomial contrasts were used. Nutrient intake was not influenced by amylolytic enzyme inclusion. The digestibility of DM, organic matter, neutral detergent fiber, total carbohydrates, non-fibrous carbohydrates, and gross energy showed a quadratic increase with enzyme inclusion (P |
| Databáze: | Directory of Open Access Journals |
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