Author:
Kocher A.,Choct M.,Morrisroe L.,Broz J.
Abstract
A broiler growth study was conducted to investigate the replacement value of
canola meal (CM) for soybean meal (SBM) in broiler diets with or without the
addition of two commercial enzyme products. A total of 3600 broilers were used
in this experiment. Four isoenergetic diets replicated 10 times with 90 birds
each were fed ad libitum as starter (Day 0–21) and
finisher (Day 21–37) crumbles. All diets included a high proportion of
sorghum as the main cereal component, and soybean meal (20% and
24.5%) or canola meal (35% and 28.9%) were included as
the sole protein concentrate. At Day 38 selected birds from each dietary
treatment were commercially processed and carcass yield and weight of selected
meat portions were measured. The inclusion of CM in place of SBM and the
addition of enzyme to CM-based diets did not affect feed intake, growth, and
feed conversion ratio (FCR). Mortality in birds fed the unsupplemented CM diet
was significantly reduced compared with the mortality in birds fed the SBM
control diet or the CM diets supplemented with enzymes. Birds fed the
unsupplemented CM had significantly (P < 0.05)
reduced eviscerated weight, breast meat, and thigh yield and a significantly
(P < 0.05) reduced water-holding capacity of muscle
tissue compared with the SBM control diet. The addition of Enzyme A to
CM-based diets increased breast meat and the addition of Enzyme B
significantly (P < 0.05) increased dress yield,
breast meat, and Marylands (thigh and drumstick portions). Carcass yield and
quality on this diet was comparable to the SBM diet.
Subject
General Agricultural and Biological Sciences
Cited by
26 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献