To effectively utilize total mixed ration (TMR) prepared with locally available feed resources, we studied the nutritional value and milk production in Jersey dairy cattle fed a local general diet (LGD) and fermented TMR in Mozambique. Ten head of Jersey dairy cattle with 337 ± 19.8 kg body weight, aged 3-4 years in mid location were used in this study. The LGD diet was designed following the general feeding method of local smallholding farms; it contained native grass, Napier grass, wheat bran, and mineral-vitamin mix. Fermented TMR was prepared using Napier grass, corn bran, wheat bran, formula feed, and mineral-vitamin mix. Fermented TMR was preserved as good quality, with a relatively low pH and high lactic acid content. Compared to LGD, fermented TMR significantly improved the dry matter intake and digestibility in dairy cattle. Milk yield was significantly higher in dairy cattle fed with TMR than in those fed with LGD, by 3.75 L/d; milk quality was not significantly different between treatments. The results confirmed that LGD had a low dry matter intake and milk yield, and fermented TMR prepared with local feed resources can attain good quality and improve milk yield in dairy cattle in Mozambique.

中文翻译：

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莫桑比克当地饲料资源配制全混合日粮的青贮特性及其对泽西奶牛营养价值和产奶量的影响。

为了有效利用由当地可用饲料资源制备的全混合日粮 (TMR)，我们研究了在莫桑比克饲喂当地普通日粮 (LGD) 和发酵 TMR 的泽西奶牛的营养价值和产奶量。本研究使用了 10 头体重 337 ± 19.8 公斤、年龄在中部的 3-4 岁泽西奶牛。LGD日粮是按照当地小农户的一般饲养方式设计的；它含有天然草、纳皮尔草、麦麸和矿物质维生素混合物。发酵 TMR 是使用紫龙草、玉米麸、麦麸、配方饲料和矿物质-维生素混合物制备的。发酵的 TMR 保存良好，具有相对较低的 pH 值和较高的乳酸含量。与 LGD 相比，发酵 TMR 显着提高了奶牛的干物质采食量和消化率。饲喂 TMR 的奶牛的产奶量显着高于饲喂 LGD 的奶牛，高出 3.75 L/d；处理之间的牛奶质量没有显着差异。结果证实，LGD 具有较低的干物质采食量和产奶量，而利用当地饲料资源制备的发酵 TMR 可获得良好的品质并提高莫桑比克奶牛的产奶量。