Department of Animal Science, Bure Polytechnic College, Bure, Ethiopia.
Department of Animal Sciences, College of Agriculture and Environmental Sciences, Bahir Dar University, Bahir Dar, Ethiopia.
Vet Med Sci. 2023 Sep;9(5):2269-2277. doi: 10.1002/vms3.1241. Epub 2023 Aug 18.
In Ethiopia, locally available feed resources are commendable in livestock production to make the sector sustainable and productive.
This on-farm evaluation was conducted to evaluate the effect of urea-molasses-treated highland bamboo (Yushania alpina) leaves (UMTHBL) in lactating crossbred dairy cows' nutrient utilization, body performance, milk yield and quality and economic performance.
On-farm feeding trial was conducted using 12 lactating cows with initial body weight (328.08 ± 0.98 kg), initial milk yield (3.14 ± 0.78 L) of uniform parity (2) and stage of lactation (early) using a Randomized Complete Block Design. Three dietary treatments, namely, 6 h grazing (control) + concentrate (T1), control + UMTHBL ad lib (T2), control + untreated BL adlib (T3) with three replications were used. Analysis of variance was employed for the feeding trial data analysis.
The UMTHBL increased more dry matter and nutrients intake than untreated. A significant difference (p < 0.05) was recorded between UMTHBL feeding (T2) and T1 and T3 in terms of increased milk yield. The highest (6.26 L) and the lowest (3.27 L) mean milk yield per day were recorded for cows fed UMTHBL and the control group, respectively. Urea-molasses treatment improved the crude protein (CP) and reduced fibres content than untreated. Treatment effects were not-significant (p > 0.05) for milk compositions. Similar to milk yield, dairy cows in T2 consumed more CP which is also reflected in higher body weight and economic benefit.
It can be concluded that employing treatment technology for highland bamboo leaves could support the crossbred dairy cows' production in smallholder farmers.
在埃塞俄比亚，当地可用的饲料资源在畜牧业生产中值得称赞，可使该行业具有可持续性和生产力。
本田间评估旨在评估尿素-糖蜜处理的高山竹（Yushania alpina）叶（UMTHBL）对泌乳杂交奶牛的养分利用、身体性能、产奶量和质量以及经济效益的影响。
采用随机完全区组设计，对 12 头具有相同体重（328.08±0.98kg）、初始产奶量（3.14±0.78L）、相同胎次（2）和泌乳阶段（早期）的泌乳奶牛进行田间饲养试验。使用三种日粮处理，即 6 小时放牧（对照）+浓缩饲料（T1）、对照+UMTHBL 自由采食（T2）、对照+未处理 BL 自由采食（T3），每个处理设三个重复。对饲养试验数据进行方差分析。
与未处理组相比，UMTHBL 增加了更多的干物质和养分摄入量。UMTHBL 喂养（T2）与 T1 和 T3 相比，产奶量显著增加（p<0.05）。产奶量最高（6.26L）和最低（3.27L）的奶牛分别为喂食 UMTHBL 和对照组的奶牛。尿素-糖蜜处理提高了粗蛋白（CP）含量，降低了纤维含量，优于未处理组。处理效果对牛奶成分没有显著影响（p>0.05）。与产奶量相似，T2 组的奶牛消耗更多的 CP，这也反映在更高的体重和经济效益上。
可以得出结论，采用高山竹叶处理技术可以支持小规模农户的杂交奶牛生产。
