Average daily gain of local pigs on rural and peri-urban smallholder farms in two districts of Western Kenya
Average daily gain of local pigs on rural and peri-urban smallholder farms in two districts of Western Kenya
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DOI：
10.1007/s11250-013-0395-2
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发表时间：
2013-10-01
影响因子：
1.7
通讯作者：
Grace, Delia
中科院分区：
文献类型：
--
作者：
Carter, Natalie;Dewey, Catherine;Grace, Delia
本研究的目的是确定肯尼亚西部两个地区农村和城郊小农农场猪的平均日增重（ADG），以建立一个基线来衡量未来管理干预措施的影响。测定了664头一、二、三次称重的猪的平均日增重（公斤/日），并确定了地方猪和杂交猪的比例。假设出生体重均为1 kg，称重一次或两次的猪的ADG没有差异。总体而言，城郊猪的ADG（0.15 +/- 0.058 kg/天）高于农村猪（0.11 +/- 0.047 kg/天）。12月龄猪的日增重高于3月龄和10 ~ 12月龄猪，杂交猪的日增重高于地方猪。在两个地区，ADG较低（0.13 +/- 0.002 kg/天）。大部分（87.2%）为地方猪种.低ADG可能是由于营养不良，高维持能量消耗，高寄生虫患病率，疾病和/或低遗传潜力。肯尼亚西部小农农场饲养的猪的ADG较低，这表明改进的潜力很大。必须利用当地现有的饲料提高肯尼亚西部猪的生长速度，以有效利用资源，促进可持续的小农养猪生产，并改善小农的生计。
The objective of this study was to determine the average daily gain (ADG) of pigs on rural and peri-urban smallholder farms in two districts of Western Kenya, in order to establish a baseline to measure the impact of future management interventions. Average daily gain (kilograms per day) for 664 pigs weighed one, two or three times and the proportion of local and crossbreed pigs was determined. Assuming a uniform birth weight of 1 kg, ADG did not differ between pigs weighed once or twice. Overall, ADG was higher in peri-urban pigs (0.15 +/- 0.058 kg/day) than rural pigs (0.11 +/- 0.047 kg/day). Pigs at 1 to 2 months had a higher ADG than those at 3 months or 10 to 12 months and ADG was higher in crossbreed than local pigs. Over the two districts, the ADG was low (0.13 +/- 0.002 kg/day). Most (87.2 %) pigs were of local breed. Low ADG may be due to malnourishment, high maintenance energy expenditure, high parasite prevalence, disease, and/or low genetic potential. This low ADG of pigs raised on smallholder farms in Western Kenya indicates a high potential for improvement. The growth rate of pigs in Western Kenya must be improved using locally available feedstuffs to make efficient use of resources, promote sustainable smallholder pig production, and improve the livelihood of smallholder farmers.