Goluch Zuzanna, Słupczyńska Maja, Okruszek Andrzej, Haraf Gabriela, Wereńska Monika, Wołoszyn Janina
Department of Food Technology and Nutrition, Wroclaw University of Economics and Business, 53-345 Wroclaw, Poland.
Department of Animal Nutrition and Feed Science, Wroclaw University of Environmental and Life Sciences, 51-631 Wroclaw, Poland.
Animals (Basel). 2023 Jan 31;13(3):499. doi: 10.3390/ani13030499.
The study concerns the effect of wheat germ expeller (WGE) as a feed additive given to male Ross-308 broiler chickens on their meat's energy and nutritional value, and coverage of nutrient reference values-requirements (NRV-R) of consumers for particular minerals. The chickens in the control group (CT-Control Treatment) were fed a standard complete mix. The experimental groups (EX5, EX10, EX15) were given a feed in which wheat middling was replaced with 5, 10, and 15% WGE. The breast and thigh muscles of 32 randomly selected chickens (8 in each group) were analyzed. More water, crude protein, P, Mg, Fe, Cu, and Mn were determined in the breast muscles, and more crude fat, crude ash, Ca, and Zn in the thigh muscles. Chickens from the CT group consumed significantly ( ≤ 0.01) less feed per body weight than those from groups EX5 to EX15, but achieved the highest body weight per 100 g of consumed feed. A higher ( ≤ 0.01) feed, energy, crude protein, and crude fat intake was observed in groups EX5 to EX15 compared to CT. The higher ( ≤ 0.01) value of protein efficiency ratios was indicated in the CT group. The WGE additive did not impact the muscles' energy values but affected the nutritional value. The daily consumption of 100 g of breast muscles to a large extent covers the consumer NRV-R for P, Mg Fe, Cu, and Mn. However, thigh muscles cover the NRV-R to a greater extent for Ca and Zn. The EX15, EX5, and EX10 muscles covered most of the NRV-R for P, Ca, and Mg, while the CT muscles did the same for Zn and Mn. Adding 5% WGE to broiler feed is optimal as it does not impair the nutritional value of the muscles.
本研究关注小麦胚芽榨油机饼粕（WGE）作为饲料添加剂添加到雄性罗斯 - 308肉鸡饲料中，对鸡肉能量和营养价值的影响，以及特定矿物质对消费者营养参考值 - 需求（NRV - R）的覆盖情况。对照组（CT - 对照处理组）的鸡饲喂标准全价混合料。实验组（EX5、EX10、EX15）饲喂用5%、10%和15%的WGE替代小麦麸的饲料。对随机选取的32只鸡（每组8只）的胸肌和大腿肌肉进行分析。胸肌中水分、粗蛋白、磷、镁、铁、铜和锰的含量更高，而大腿肌肉中粗脂肪、粗灰分、钙和锌的含量更高。CT组鸡的每体重采食量显著（≤0.01）低于EX5至EX15组，但每消耗100克饲料的体重最高。与CT组相比，EX5至EX15组的采食量、能量、粗蛋白和粗脂肪摄入量更高（≤0.01）。CT组的蛋白质效率比值更高（≤0.01）。WGE添加剂不影响肌肉的能量值，但影响营养价值。每日食用100克胸肌在很大程度上满足了消费者对磷、镁、铁、铜和锰的NRV - R。然而，大腿肌肉对钙和锌的NRV - R覆盖程度更高。EX15、EX5和EX10组的肌肉对磷、钙和镁的NRV - R覆盖大部分，而CT组的肌肉对锌和锰的NRV - R覆盖情况相同。在肉鸡饲料中添加5%的WGE是最佳选择，因为它不会损害肌肉的营养价值。
