Madzimure James, Motsi Rumbidzai, Bakare Archibold G, Zimondi Milton
Department of Animal Production and Technology, Chinhoyi University of Technology, Private Bag 7724, Chinhoyi, Zimbabwe.
College of Agriculture, Fisheries and Forestry, Fiji National University, P. O. box 7222, Suva, Fiji.
Trop Anim Health Prod. 2018 Oct;50(7):1485-1491. doi: 10.1007/s11250-018-1585-8. Epub 2018 Apr 14.
The objective of the study was to determine growth performance, viscera organ development, economic benefit and sensory characteristics of meat from broilers finished on Acacia anguistissima leaf meal-based diets. One hundred and eighty Cobb 500-day-old chicks were used in the study. Acacia anguistissima was used as a protein source and included in broiler diets at 0, 50 and 100 g/kg. Total feed intake (TFI), average daily gain (ADG), and gain to feed ratio (G:F) and cost benefit analysis were determined. There were no differences in TFI of broilers across treatments diets. Average daily gain and gain to feed (G:F) ratio were low (P < 0.05) for broilers feeding on diet with100 g/kg acacia meal. Highest returns from weight gain were obtained from broiler chickens fed on diet with 50 g/kg inclusion level of A. anguistissima (P < 0.05). Intestinal length increased with inclusion level of A. anguistissima whereas liver and spleen weight decreased with inclusion level of A. anguistissima (P < 0.05). Female consumers gave higher scores for overall flavour intensity than male consumers (P < 0.05). Treatment diets influenced consumer sensory characteristics of broiler meat (P < 0.05). High sensory scores were observed for overall flavour intensity (OFI) for both boiled and deep fried meat from broilers fed 100 g/kg A. anguistissima. It can be concluded that A. anguistissima meal can be used effectively up to 50 g/kg in broiler diets without compromising performance of chickens and can influence a few sensory characteristics.
本研究的目的是确定以狭叶相思树叶粉为基础日粮育肥的肉鸡的生长性能、内脏器官发育、经济效益和肉的感官特性。本研究使用了180只科宝500日龄雏鸡。狭叶相思树被用作蛋白质来源,并以0、50和100克/千克的比例添加到肉鸡日粮中。测定了总采食量(TFI)、平均日增重(ADG)、料重比(G:F)和成本效益分析。不同处理日粮的肉鸡总采食量没有差异。采食含100克/千克相思树粉日粮的肉鸡平均日增重和料重比(G:F)较低(P<0.05)。采食含50克/千克狭叶相思树添加水平日粮的肉鸡增重回报最高(P<0.05)。肠道长度随狭叶相思树添加水平的增加而增加,而肝脏和脾脏重量随狭叶相思树添加水平的增加而减少(P<0.05)。女性消费者对整体风味强度的评分高于男性消费者(P<0.05)。处理日粮影响了消费者对肉鸡的感官特性(P<0.05)。对于采食100克/千克狭叶相思树的肉鸡,无论是煮肉还是炸肉,其整体风味强度(OFI)的感官评分都很高。可以得出结论,狭叶相思树粉在肉鸡日粮中有效添加量可达50克/千克,不会影响鸡的生产性能,且会影响一些感官特性。