| Autor: |
Yee-Mei Sun, Bi Yu, P. W. S. Chiou |
| Rok vydání: |
2002 |
| Předmět: |
|
| Zdroj: |
Animal Feed Science and Technology. 102:35-52 |
| ISSN: |
0377-8401 |
| DOI: |
10.1016/s0377-8401(02)00218-3 |
| Popis: |
A trial was conducted to evaluate the substitution of process de-hulled barley (or pearled barley) for maize in a traditional maize-soy diet and the inclusion of β-glucanase on the growth performance and nutrient digestibility of broiler chickens. The experiment was a randomized design with a 3×2 factorial arrangement with three levels of de-hulled barley substitution and two levels of enzyme inclusion in the diet. De-hulled barley replaced 0, 400 or 800 g maize/kg with versus without β-glucanase inclusion in iso-nitrogenous and iso-caloric experimental diets. Results showed that increasing amounts of barley substitution increased feed intake in the broiler chickens, hence significantly increased the live-weight gain both in the grower and finisher period ( P P >0.05). Barley substitution in the broiler diet did not significantly influence the digesta viscosity in the duodenum ( P >0.05), however, a significant increase in the relative weight of the jejunum and caecum was evident in growing broilers and in the ileum weight in the finisher. Barley substitution also depressed dry matter and crude fat digestibility ( P P P |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect