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Two experiments were conducted to determine the nitrogen-corrected apparent metabolizable energy (AMEn) of differently processed meals from Juncea ( Brassica juncea ), yellow and black seeded canola ( Brassica napus ), with or without supplementation of multi-carbohydrase enzymes (Enz) in diets for broiler chickens. The first experiment was a 3 × 2 × 2 factorial arrangement with the main factors being seed type (yellow [Yellow] or black [B1] canola seeds and Juncea seeds), processed at two temperatures (high temperature desolventized-toasted [HTDT] at 95°C or low temperature desolventized-toasted [LTDT] at 57°C), with or without Enz. In Exp. 1, a total of 384 one-day-old male broiler chicks were randomly assigned to 64 battery cages, with 6 birds/cage. The second experiment was a 2 × 2 × 2 factorial arrangement with the main factors being seed type (Yellow or black [B2]), seed source (Scott, Saskatchewan or Truro, Nova Scotia) and Enz (with or without) supplementation. A total of 264 one-day-old male broiler chicks were randomly assigned to 44 battery cages, with 6 birds per cage. In Exp. 1 and 2, all birds were fed a common starter diet from 1 to 14 days of age. From d 15 to 21, the birds were fed one of the test treatments, a basal grower diet or the basal grower diet replaced with 30% test ingredient with celite (0.8%) added as an inert marker. Excreta was collected on d 20 and 21. In Exp. 1, there were no interactions ( P  &gt; 0.05) among seed type, processing temperature and Enz. Processing temperature and dietary Enz did not affect ( P  &gt; 0.05) AMEn of different canola meals. The AMEn of prepress solvent extracted canola and juncea meals (PSEM) from Yellow (11.2 MJ/kg) was higher ( P  &lt; 0.05) than B1 (10.2 MJ/kg) and Juncea (10.2 MJ/kg). In Exp. 2, there were no interactions ( P  &gt; 0.05) among seed color, location and Enz. Supplementation of dietary Enz did not affect ( P  &gt; 0.05) AMEn of different cold press canola meals. The AMEn of cold press canola meals (CPM) from Yellow (14.7 MJ/kg) was higher ( P  &lt; 0.05) compared with B2 (12.2 MJ/kg). In conclusion, among the different processing methods of oil extraction, meals derived from yellow seeded canola had higher AMEn than B seeded canola and Juncea.

animal nutrition

Effects of derived meals from juncea ( Brassica juncea ), yellow and black seeded canola ( Brassica napus ) and multicarbohydrase enzymes supplementation on apparent metabolizable energy in broiler chickens