高原牧区不同饲料补饲犏雌牛效果观察

Effects on Female Cattle-yak with Different Feed in the Plateau Pastural

试验依据奶牛营养需求,制定了科学合理的补饲精料配方,观察研究不同饲料对犏雌牛的补饲效果。试验选择30头常年放牧犏雌牛分为试验1组、试验Ⅱ组和对照组,每天归牧后试验1组和Ⅱ组分别补饲正大奶牛专用饲料(372)和自制配合饲料,补饲量为1kg/头,对照组不补饲。试验结果表明,两组试验组产奶量均显著高于对照组(P<0.05),两试验组间对比,试验1组显著高于试验Ⅱ组(P<0.05),产奶高峰期试验1组日均产奶量可达到4 898.34g/d,试验Ⅱ组达到4 528.27g/d,对照组仅为3 030.67g/d,试验1组、Ⅱ组分别比对照组产奶量提高61.65%、49.43%。经效益测算,试验1组、Ⅱ组头均每天分别比对照组增收11.4元、8.08元。用正大372奶牛专用饲料和配制饲料对高原牧区放牧犏雌牛进行补饲,均有效提高了产奶量,增加了产奶效益,正大372奶牛专用饲料增产效果更好,而自制配合饲料使用便捷。因此,在高原牧区牧户可根据实际需要对以上不同饲料进行筛选饲喂。

To observed feeding effects of different feed on female Cattle--yak, in this study, the scien tific and reasonable feeding concentrate formula was formulated based on the dairy cow nutrition demand. A total of 30 head of continuous grazing female cattle -yak were randomly divided into test group I , test group II and control group. Individuals in experiment group I and group II were feed cows special feed （Zhengda 372） and self--made feed respectively with 1 kg/head every day after grazing, while the control group was not feeding. The test results showed that milk yield in two experiment groups were significantly higher than those in control group （P〈0.05）. Moreover, between the two experiment groups, the test group I was significantly higher than that of test group II （P〈0.05）. The average daily milk yield in group I can reach 4898.34 g/d and reached 4528.27 g/d in group II, while only 3030.67 g/d in the con- trol group. Furthermore, the milk production in group I and group II were increased by 61. 65% and 49.43% than that in control group. According to the benefit calculation, feeder can receive 11.4 yuan and 8.08 yuan from the group I and group II respectively more than the control group every day. All in all, feeding female cattle-yak on the plateau pastural with cows special feed （Zhengda 372） and self-made feed both can improve the milk yield and milk production efficiency. Therefore, the herdsman in plateau pastural can choose above different feed according to the actual needs.