Comparison of performance and intestinal characteristics of broiler chickens fed on diets containing whole, rolled or ground barley
| Autor: | Birger Svihus, O. Herstad, R. K. Newman, C. W. Newman |
|---|---|
| Rok vydání: | 1998 |
| Předmět: |
Male
Food intake animal structures Colon Food Handling Live weight Biology Weight Gain medicine Animals Food science Gizzard Cecum Intestinal contents Body Weight Broiler food and beverages Hordeum General Medicine Organ Size Animal Feed Intestines Gizzard Avian Animal Science and Zoology Female medicine.symptom Energy Intake Weight gain Chickens Food Science |
| Zdroj: | British poultry science. 38(5) |
| ISSN: | 0007-1668 |
| Popis: | 1. In two experiments, no consistent differences in weight gain or food intake appeared between broiler chickens given diets based on whole or rolled barley, but food: gain ratio and gizzard weight as a percentage of live weight were reduced (P0.05) when barley was rolled. Grit addition did not affect performance or intestinal characteristics. 2. In a third experiment, whole barley diets gave significantly higher weight gain than ground barley diets; this was attributable to the significantly higher food consumption. Gizzard weight as a percentage of live weight increased (P0.05) when whole barley was fed, while food: gain ratio was not significantly (P0.05) affected by the form of barley. 3. The number of particles in the intestinal contents with sizes larger than 2.4 mm was not significantly (P0.05) different between broiler chickens fed on whole barley and those fed ground barley, but the number of particles with sizes between 2.4 and 0.7 mm was lower P0.05) when diets with whole barley were fed. 4. Enzyme addition increased (P0.05) weight gain and the DM of intestinal contents, and decreased (P0.05) intestinal viscosity, food: gain ratio and pancreas weight as a percentage of live weight regardless of form of the barley. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|