Pressed, dehulled cottonseed meal: Effect on growth performance in broiler diets and retention of gossypol in tissues
Academic Article
Overview
Research
Identity
Additional Document Info
Other
View All
Overview
abstract
Verlag Eugen Ulmer, Stuttgart. This experiment evaluated the effect of cottonseed meal on broiler growth performance and determined residual gossypol in chicken tissues. Pressed, dehulled cottonseed meal (CSM) was included at 5 and 10% either for the first 21 d or for the entire 41 d trial; body weights and FCR for birds fed the CSM were compared to those of birds fed an industry type maize-soybean meal diet. A starter diet was fed through 21 d, a grower diet for 22 to 35 d, and a finisher diet for 36 to 41 d. Body weight and FCR were determined on d 10, 21, 35, and 41. Muscle and liver samples were collected to determine the presence of gossypol on d 21, 35 and 41. At the conclusion of the trial, no differences were observed (P < 0.05) in body weight or FCR for birds fed any of the CSM diets compared to the control diet. Gossypol was not found in breast and thigh tissues from birds fed any of the CSM diets at 35 and 41 d. However, after 35 and 41 d gossypol was found in some of the liver samples. These data indicate that pressed, dehulled cottonseed meal can be included at up to 10% in broiler diets without negatively affecting growth performance. Further research should be conducted to ascertain the maximum level of CSM that may safely be included in broiler diets, and determine the presence of gossypol in chicken tissues.
