Pekel A Y, Patterson P H, Hulet R M, Acar N, Cravener T L, Dowler D B, Hunter J M
Department of Poultry Science, The Pennsylvania State University, University Park 16802, USA.
Poult Sci. 2009 Nov;88(11):2392-8. doi: 10.3382/ps.2009-00051.
An experiment was conducted to compare the responses of young broiler chickens to corn-soybean meal diets supplemented with flaxseed or camelina meal versus a corn-soybean meal control and the factorial effect of 150 mg/kg of Cu supplementation on performance and processing yield. A randomized complete block design with a 2 x 3 factorial arrangement was used with 7 replicates from hatch to 21 d of age (n = 294; 7 chicks per replicate). Body weight of birds fed 10% camelina meal or 10% flaxseed was significantly reduced compared with the control birds. Addition of Cu significantly increased BW and feed consumption of the birds fed the control diet throughout the study. Copper supplementation to the 10% camelina meal diet also increased BW (P < 0.001) with no effect on feed consumption or feed conversion at 21 d. In addition, hot carcass weight, yield, and carcass parts were significantly improved among birds fed the Cu-supplemented control diet. A significant Cu x diet interaction was observed for hot carcass weight and yield, indicating Cu supplementation to the control diet was superior for carcass weight to the other treatments. However, yield was greater for the camelina diets and the control + Cu versus the other treatments. Results from the present study demonstrated that either 10% camelina meal or 10% flaxseed diets will reduce broiler BW when fed the first 3 wk of life. However, birds fed the camelina diet responded to Cu sulfate supplementation with improved live performance and carcass characteristics. Birds fed the 10% flaxseed diets showed no beneficial effect resulting from Cu supplements.
进行了一项实验，比较幼龄肉鸡对添加亚麻籽或亚麻荠粕的玉米 - 豆粕日粮与玉米 - 豆粕对照日粮的反应，以及添加150 mg/kg铜对生产性能和加工产量的析因效应。采用2×3析因排列的随机完全区组设计，从孵化到21日龄进行7次重复试验（n = 294；每个重复7只雏鸡）。与对照鸡相比，饲喂10%亚麻荠粕或10%亚麻籽的鸡体重显著降低。在整个研究过程中，添加铜显著提高了饲喂对照日粮的鸡的体重和采食量。在10%亚麻荠粕日粮中添加铜也增加了体重（P < 0.001），但在21日龄时对采食量或饲料转化率没有影响。此外，在饲喂添加铜的对照日粮的鸡中，热胴体重、产率和胴体部分显著改善。观察到热胴体重和产率存在显著的铜×日粮互作，表明对照日粮添加铜对胴体重的效果优于其他处理。然而，亚麻荠日粮以及对照 + 铜组的产率高于其他处理。本研究结果表明，在雏鸡生命的前3周饲喂10%亚麻荠粕或10%亚麻籽日粮会降低肉鸡体重。然而，饲喂亚麻荠日粮的鸡对添加硫酸铜有反应，其生长性能和胴体特性得到改善。饲喂10%亚麻籽日粮的鸡未显示出添加铜的有益效果。
