Abstract
Three trials, including 352 male and 96 female 8-day-old chicks, were conducted to compare the nutritional values of a trypsin-inhibitor variant soybean designated 661, and the commercial soybean varieties, Clark and Harosoy. Solvent-extracted soybean meal (SBM) was used as the control protein source. SBM was superior to the raw soybean proteins. Chicks fed raw 661 gained faster (P < .05) and more efficiently and retained more protein than chicks fed raw Clark and Harosoy. Whole body composition and pancreas weights were similar in chicks on the diets containing the different raw soybean varieties. dl-methionine addition (0.3%) improved (P < .01) gain, feed intake, gain/feed and percent protein retention. It also decreased (P < .05) whole body water and protein, increased (P < .05) whole body fat, and increased (P < .01) dry pancreas weight in chicks fed raw soybeans. With methionine supplementation male chicks utilized 661 better than the Harosoy variety, but females responded similarly to both varieties. Both male and female chicks had better gain/feed from SBM than from raw 661 soybeans regardless of methionine supplementation.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
