We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
The Effect of Protease Enzyme and Replacement Soybean Meal by Cotton Seed Meal on Protein Efficiency and Performance in Broiler Chickens.
- Authors
Safari, M.; Saki, A. A.; Goudarzi, S. Mirzaie; Ahmadi, A.; Ashoori, A.
- Abstract
This study was conducted to investigate the effect of replacing soy bean meal (SBM) by cottonseed meal (CSM) with or without of protease enzymes, on performance, in-vitro protein digestibility, carcass characteristics, gastrointestinal morphology and hematological parameters in broilers. A total 450 one-day-old mixed sex broiler chickens Ross 308 were managed in 6 treatments, 5 replicates and 15 chickens in each in a 2 × 3 factorial arrangement with completely randomized design (CRD). Treatments consist of: treatment 1 (0% CSM, -protease), treatment 2 (0% CSM, +protease), treatment 3 (20% CSM, -protease), treatment 4 (20% CSM, +protease), treatment 5 (30% CSM, -protease), treatment 6 (30% CSM, +protease). The results have shown that there were no significant affected on feed intake, body weight gain and feed conversion ratio by various treatments in starter period (P>0.05). Digestive organs and body weight were not affected by treatments at 27 days of age. Breasts weight was significantly increased by 20% replacement SBM with CSM (P<0.05). Protein digestibility was increased significantly by protease enzymes and in vitro method. Serum cholesterol levels reduced by enhanced levels of replacement CSM (P<0.05). There was concluded that no adverse effects were found by replacing 30% SBM with CSM on performance status, as well as improved in vitro protein digestibility.
- Subjects
SEED proteins; BROILER chickens; SOYBEAN meal; COTTONSEED; SOYBEAN; PLANT proteins
- Publication
Iranian Journal of Applied Animal Science, 2023, Vol 13, Issue 1, p143
- ISSN
2251-628X
- Publication type
Article