Department of Animal Resource and Science, Dankook University, No. 29 Anseodong, Cheonan, Choongnam, 330-714, Korea.
Daeho. Co. Ltd. Bangbae ro-27 gil, Seocho-gu, Seoul, Korea.
Poult Sci. 2018 Jan 1;97(1):255-261. doi: 10.3382/ps/pex303.
Energy is a major cost component in diets for poultry. We hypothesized that the supplementation of emulsifier blends in broiler diets may contribute to the efficient utilization of energy and in increasing fat digestibility, thereby improving performance. To test our hypothesis, an experiment was conducted to evaluate the effect of a blend of emulsifiers on growth performance, nutrient digestibility, serum lipid profiles, and meat quality of broilers. A total of 768 1-d-old Ross 308 male broiler chicks with an average initial body weight of 45.55 ± 0.34 g were used in a 35 days feeding trial. Broilers were sorted into 4 treatments, 12 replications per treatment, and 16 birds per pen. Dietary treatments consisted of corn-soybean meal based basal diet and the basal diet supplemented with 0.05%, 0.075%, and 0.10% emulsifier. As a result of this study, the inclusion of 0.05%, 0.075%, and 0.10% emulsifier blends (sodium stearoyl-2-lactylate (SSL) and Tween 20) in the basal diet linearly increased (P = 0.0001) body weight gain (BWG) and improved feed conversion ratio (FCR) (linear effect P = 0.0001) on d 7 to 21, d 21 to 35 as well as overall. Broilers fed with different levels of emulsifier blends also showed a linear increment (P < 0.05) in dry matter (DM) and fat digestibility. A trend of linear reduction (P = 0.051) in low density lipoprotein (LDL) in the serum of broilers fed emulsifier blend was observed. The lightness value of breast muscle color linearly increased (P = 0.001), the redness and yellowness values tended to increase (P = 0.072 and P = 0.094 respectively), and the water holding capacity (WHC) showed trends in reduction (P = 0.078) with an increase in the level of emulsifier blends. With regards to relative organ weight, spleen weight was linearly (P = 0.001) reduced with the increase in the supplemental levels of emulsifier blends. A positive correlation between emulsifier content in the diet and BWG, DM and fat digestibility, and breast muscle color indices, were also observed. In conclusion, emulsifier blend supplementation positively influenced growth performance and nutrient digestibility in broiler chickens.
家禽的日粮中能量是主要的成本组成部分。我们假设在肉鸡日粮中添加乳化剂混合物可能有助于有效地利用能量和提高脂肪消化率，从而提高生产性能。为了验证我们的假设，进行了一项实验来评估乳化剂混合物对肉鸡生长性能、养分消化率、血清脂质谱和肉质的影响。总共使用了 768 只 1 日龄的 Ross 308 雄性肉鸡雏鸡，平均初始体重为 45.55±0.34g，进行了 35 天的饲养试验。肉鸡被分为 4 个处理组，每个处理组有 12 个重复，每个重复有 16 只鸡。日粮处理包括以玉米-豆粕为基础的基础日粮和基础日粮中添加 0.05%、0.075%和 0.10%乳化剂。研究结果表明，在基础日粮中添加 0.05%、0.075%和 0.10%乳化剂混合物（硬脂酰-2-乳酸钠（SSL）和吐温 20）可线性增加（P=0.0001）体重增加（BWG）和改善饲料转化率（FCR）（线性效应 P=0.0001）在第 7 天至 21 天，第 21 天至 35 天以及整个试验期间。饲喂不同水平乳化剂混合物的肉鸡还表现出干物质（DM）和脂肪消化率的线性增加。在饲喂乳化剂混合物的肉鸡血清中，低密度脂蛋白（LDL）呈线性降低趋势（P=0.051）。胸肌颜色的亮度值呈线性增加（P=0.001），红色和黄色值呈增加趋势（P=0.072 和 P=0.094），水保持能力（WHC）呈线性降低趋势（P=0.078）随着乳化剂混合物水平的增加。关于相对器官重量，脾脏重量呈线性（P=0.001）降低随着乳化剂混合物补充水平的增加。还观察到日粮中乳化剂含量与 BWG、DM 和脂肪消化率以及胸肌颜色指数之间呈正相关。总之，乳化剂混合物的添加对肉鸡的生长性能和养分消化率有积极影响。
