Poultry Department, Faculty of Agriculture, Zagazig University, Zagazig 44511, Egypt.
Biology Department, Faculty of Science, Princess Nourah Bint Abdulrahman University, Riyadh, Saudi Arabia.
Poult Sci. 2020 Jun;99(6):3060-3069. doi: 10.1016/j.psj.2020.03.009. Epub 2020 Apr 8.
The present study investigated the impacts of dried okra fruit powder (DOFP), used as a natural feed supplement, on growth, carcass, blood, and meat quality parameters of broilers. A total of 240 unsexed, one-week-old chicks were randomly allotted to 4 equal groups with 6 replicates in each group (i.e., 10 birds/replicate). The dietary treatments consisted of the basal diet as control, and 3 DOFP groups, supplemented with 1.0, 2.0, and 3.0 g DOFP/kg feed, respectively. The results showed that the highest values of live body weight and body weight gain were observed in the group with 1.0 g of DOFP/kg of feed during the fifth week of age and between 1 and 5 wk of age, respectively. During 1 to 3 wk of age, daily feed consumption of chicks fed DOFP-supplemented diets increased numerically with increasing DOFP levels. Dietary treatments significantly depressed liver, thigh, and dressing fat percentages. Chicks fed the diet containing 1.0 g of DOFP/kg of feed had the lowest values for serum urea and creatinine compared with the other treatment group. In addition, the concentration of liver enzymes decreased with increasing DOFP levels, except for the groups fed 3.0 and 1.0 g of DOFP/kg of diet. Oxidative rancidity of broiler meat samples containing DOFP in their diets was lower than that of the control samples, throughout the storage period. It can be concluded that DOFP is a useful phytogenic additive, which can lower the percentage of abdominal fat of the carcass, as well as alanine aminotransferase, urea, and creatinine in the blood. Furthermore, all sensory characteristics of the meat were improved by the addition of DOFP to broiler diets. It could be concluded that DOFP can be used as a natural supplement in broiler diets for improving growth performance and reducing abdominal fat, blood creatinine, and urea.
本研究探讨了作为天然饲料添加剂的干黄秋葵果粉(DOFP)对肉鸡生长、胴体、血液和肉质参数的影响。将 240 只不分性别的、一周龄的小鸡随机分为 4 个相等的组,每组 6 个重复(即 10 只/重复)。日粮处理包括基础日粮作为对照,以及 3 个 DOFP 组,分别补充 1.0、2.0 和 3.0 g DOFP/kg 饲料。结果表明,第 5 周龄和 1 至 5 周龄时,饲料中添加 1.0 g DOFP/kg 体重的组体重和体重增重最高。1 至 3 周龄时,饲喂 DOFP 补充日粮的雏鸡日采食量随 DOFP 水平的增加而呈数值增加。日粮处理显著降低了肝脏、大腿和胴体脂肪的百分比。与其他处理组相比,饲喂含 1.0 g DOFP/kg 饲料的雏鸡血清尿素和肌酐值最低。此外,随着 DOFP 水平的增加,除了饲喂 3.0 和 1.0 g DOFP/kg 日粮的组外,肝脏酶的浓度降低。日粮中添加 DOFP 的肉鸡肉样氧化酸败程度低于对照组,整个贮藏期均如此。可以得出结论,DOFP 是一种有用的植物源添加剂,可降低胴体腹部脂肪的百分比,以及血液中的丙氨酸氨基转移酶、尿素和肌酐。此外,通过在肉鸡日粮中添加 DOFP,可以改善肉的所有感官特性。可以得出结论,DOFP 可作为天然添加剂用于改善肉鸡生长性能和减少腹部脂肪、血液肌酐和尿素。