Liu Xiao, Yun Kwan-Sik, Kim In-Ho
Department of Animal Resource and Science, Dankook University, Cheonan, Choongnam, 31116, South Korea.
Synergen Inc., 103-2002, Weve The state Apt. 1106, Jung-Dong, WonmiGu, Bucheon -Si, Gyeonggi-Do, Korea.
J Poult Sci. 2020 Jan 25;57(1):55-62. doi: 10.2141/jpsa.0190007.
We evaluated the effects of supplementing an emulsifier blend (sodium stearoyl-2-lactylate and 1, 3-diacylglycerol) in diets with different energy content (normal and 100 kcal/kg reduced) on the growth performance, meat quality, apparent total tract digestibility (ATTD), and blood lipid profile of broiler chickens. Male broiler chickens ( = 1024), with an initial body weight (BW) of 43.60±0.2 g, were used in a 35-day trial. Broiler chickens of similar body weight were randomly allocated to one of four treatment groups in a 2 × 2 factorial arrangement with two levels of dietary energy content and with or without emulsifier blend. Broiler chickens fed on emulsifier blend supplemented diet had a higher body weight gain (BWG) during d 7-21, d 21-35, and overall period (<0.05), higher BW during overall period (<0.05), and lower feed conversion ratio (FCR) during d 7-21, d 21-35, and overall period (<0.05) compared with broilers fed on diets without emulsifier supplementation. Broiler chickens fed on the diet with low energy content had a lower BWG during d 1-7, d 21-35, and overall period (<0.05), lower BW during overall period, and higher FCR during d 1-7, d 21-35, and overall period (<0.05). The ATTD of energy tended to decrease in response to low-energy content diet (<0.10). Drip loss at 7 d post slaughter tended to decrease in response to dietary emulsifier blend supplementation (<0.10). However, no interactive effects of dietary energy content and emulsifier blend supplementation (>0.10) were observed on the growth performance, ATTD, blood lipid profiles, meat quality and relative organ weight. In conclusion, dietary emulsifier blend supplementation could improve growth performance, while low dietary energy content would decrease growth performance and ATTD of energy.
我们评估了在不同能量水平（正常能量和降低100千卡/千克能量）的日粮中添加乳化剂混合物（硬脂酰-2-乳酸钠和1,3-二酰甘油）对肉鸡生长性能、肉质、表观全肠道消化率（ATTD）和血脂水平的影响。选用1024只初始体重（BW）为43.60±0.2克的雄性肉鸡，进行为期35天的试验。体重相近的肉鸡按照2×2析因设计随机分为四个处理组，设置两个日粮能量水平，且分别添加或不添加乳化剂混合物。与未添加乳化剂的日粮组相比，添加乳化剂混合物日粮组的肉鸡在7至21日龄、21至35日龄以及整个试验期的体重增加（BWG）更高（P<0.05），整个试验期的体重更高（P<0.05），在7至21日龄、21至35日龄以及整个试验期的饲料转化率（FCR）更低（P<0.05）。采食低能量日粮的肉鸡在1至7日龄、21至35日龄以及整个试验期的BWG更低（P<0.05），整个试验期的体重更低，在1至7日龄、21至35日龄以及整个试验期的FCR更高（P<0.05）。能量的ATTD倾向于因低能量日粮而降低（P<0.10）。屠宰后7天的滴水损失倾向于因日粮添加乳化剂混合物而降低（P<0.10）。然而，日粮能量水平和乳化剂混合物添加之间在生长性能、ATTD、血脂水平、肉质和相对器官重量方面未观察到交互作用（P>0.10）。总之，日粮添加乳化剂混合物可改善生长性能，而低能量日粮会降低生长性能和能量的ATTD。
