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Estimation of Milk Production from Smallholder Dairy Cattle in the Coastal Lowlands of Kenya

机译：肯尼亚沿海低地小农户奶牛的产奶量估算

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摘要

A study was carried out on 92 smallholder farms in Kwale district in Coast Province of Kenya to estimate the milk yield. The effect of concentrate feed supplementation on milk yield was also evaluated. Data were collected during a one-year observational longitudinal study. Analysis was done for 371 observations following 63 calving events. The mean annual milk offtake was estimated at 2021 kg/cow. Forty-nine (77.8%) of the lactating cows were supplemented with concentrate feeds at varying rates of 0.5–3.0 kg/cow per day. Supplementary feeding of lactating cows led to a significantly higher mean daily milk yield compared to non-supplemented cows throughout the year (p<0.05). The mean annual milk offtake from supplemented cows (2195 kg/cow) was 18.6% more than offtake from non-supplemented cows, a difference that was statistically significant (p<0.05). Therefore, supplementary feeding of commercial feed concentrates was a rational management practice. It was also concluded that milk production from smallholder dairy cows in the coastal lowlands of Kenya was comparable to that from similar production systems but lower than national targets.
机译：对肯尼亚沿海省夸尔区的92个小农户进行了一项研究，以估算牛奶产量。还评估了补充浓缩饲料对产奶量的影响。在为期一年的纵向观察研究中收集了数据。在63次产犊事件后对371个观察值进行了分析。每年的平均牛奶摄入量估计为2021公斤/牛。在四十九头（77.8％）的泌乳母牛中，每天以0.5-3.0千克/牛的不同速率补充精饲料。与不补充奶牛相比，全年补充饲喂泌乳牛的平均日产奶量显着更高（p <0.05）。补充奶牛的平均年牛奶摄入量（2195公斤/牛）比未补充奶牛的平均牛奶摄入量高18.6％，差异具有统计学意义（p <0.05）。因此，补充商业饲料浓缩液是一种合理的管理实践。还得出结论，肯尼亚沿海低地小农户奶牛的牛奶产量与类似生产系统的牛奶产量相当，但低于国家目标。

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