Mahmoud Haghighiyan Roudsari; Mohammad Roostaei Alimehr; Maryam Safdarian; Seyed Abdolhossein Abolghasemi
Volume 14, Issue 1 , September 2012, , Pages 59-68
Abstract
The effect of replacement of soybean meal protein with low glucosinolate rapeseed meal was investigated in an experiment with 320 one-week old broilers with an average live weight of 111 g. Chicks divided into two groups and each further subdivided into four subgroups. To each subgroup, four cages of ...
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The effect of replacement of soybean meal protein with low glucosinolate rapeseed meal was investigated in an experiment with 320 one-week old broilers with an average live weight of 111 g. Chicks divided into two groups and each further subdivided into four subgroups. To each subgroup, four cages of 10 chicks per cage allocated. 30 and 45 percent of soybean meal protein of the diet of group (1) and group (2) replaced with rapeseed meal respectively. Levels of enzyme were zero, 500 units of phytase, 600 units Safizym GP 800 and a mixture of 500 units of phytase and 600 units of Safizym GP 800 added to the diets. Results showed that the interactions of levels of rapeseed meal and enzymes on the feed conversion and live weight gain were significant. In 30 percent replacement level, the best feed conversion (1.8) were belong to diets with no enzyme and in 45 percent of replacement, the feed conversion of diets with no enzyme (2.43) were higher than the diets with mixture of enzyme (2.03). The lowest values of live weight gain in the total period (42.30 g) was belonged to 45 percent replacement of rapeseed meal without enzyme. Overall result shown that the rapeseed meal can be used to provide 30 percent of the diet protein but in the case of adding enzyme to the diet, up to 45 percent of protein can be provided by the rapeseed meal.