This study was aimed to investigate the effect of ground mulberry leaf (GML) on growth performance, slaughter performance and meat quality of broilers. A total of 172 Guangxi Qingjiaoma roosters aged 35 days were chosen and allotted randomly into 4 treatment groups, and were fed with diets supplemented with 0 (control group), 5%, 8% and 11% GML, respectively. The results showed that adding 8% and 11% GML into the broiler diet significantly increased the feed/gain ratio compared with control (P < 0.05); Compared with control, adding 5% GML into the broiler diet reduced the abdominal fat rate (P < 0.05); Compared with control, GML supplementation reduced the intramuscular fat (IMF) content (P < 0.05). The 11% GML supplementation had higher unsaturated fatty acid (UFA) and ω-3 fatty acid, but lower saturated fatty acid (SFA) compared with the control group (P < 0.05). GML Supplementation tended to increase the contents of corrected IMP, although the effect was not statistically significant (P > 0.05). Overall, adding GML into the diet of broilers reduced the abdominal fat rate and IMF, increased the contents of UFA and w-3 PUFA in muscle, but decreased the gain/feed ratio.%本试验旨在研究桑叶粉对肉鸡生长性能、屠宰性能及肉质的影响.选择35日龄的广西青脚麻公鸡172只,随机分为4组,分别饲以桑叶粉添加量为0(对照组)、5％、8％和11％的饲粮.结果表明:8％、11％桑叶粉组的饲料增重比相对于对照组显著提高(P＜0.05);5％桑叶粉组的肉鸡腹脂率显著降低(P＜0.05);与对照组相比,桑叶粉组的肌内脂肪(IMF)含量显著降低(P＜0.05);11％桑叶粉组的不饱和脂肪酸(UFA)、ω-3脂肪酸含量显著提高(P＜0.05),饱和脂肪酸(SFA)含量显著降低(P＜0.05);桑叶粉组的矫正肌苷酸含量有上升趋势,但差异不显著(P＞0.05).综上,桑叶粉的添加具有降低腹脂率、IMF和提高UFA、ω-3脂肪酸含量的效果,但使肉鸡的饲料利用率降低.
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