Sahlu T, Carneiro H, el Shaer H M, Fernandez J M
E. (Kika) de la Garza Institute for Goat Research, Langston University, OK 73050.
J Dairy Sci. 1992 Jun;75(6):1643-50. doi: 10.3168/jds.S0022-0302(92)77921-1.
Angora kids were blocked by birth weight and sex and assigned randomly to goat milk or acidified milk replacer. Daily milk intake, weekly BW, and heart girth measurements, and blood parameters (packed cell volume, total protein, glucose, and NEFA) were monitored at 3 d (initial) and at 4, 6, 8, and 9 wk of age. Both groups were fed their respective milks for ad libitum intake for 6 wk and then reduced to 75, 50, 25, and 0% of wk-6 intake during wk 7, 8, 9, and 10, respectively. Solid feed (20% CP and 3.1. Mcal of metabolizable energy/kg of DM) was provided for ad libitum intake starting on wk 3. Pretreatment BW (average 2.4 kg) and blood parameters were similar for milk and replacer groups. Packed cell volume (21.8 and 34.2%), total protein (50.3 and 46.6 g/L), and NEFA (.52 and .69 meq/L) for goat milk and acidified milk replacer groups, respectively, were affected by dietary treatment. Final BW (average 10.5 kg) and mean plasma glucose concentration (84 to 88 mg/dl) were similar between treatments; however, kids fed goat milk produced more mohair (13.8%) than those fed acidified milk replacer. Despite physiological differences, acidified milk replacer can be used successfully to raise Angora kids.
安哥拉幼羊按出生体重和性别进行分组,并随机分配到山羊奶组或酸化代乳粉组。在3日龄(初始)以及4、6、8和9周龄时监测每日奶摄入量、每周体重和胸围测量值以及血液参数(红细胞压积、总蛋白、葡萄糖和非酯化脂肪酸)。两组幼羊均自由采食各自的奶6周,然后在第7、8、9和10周分别减少至第6周摄入量的75%、50%、25%和0%。从第3周开始提供固体饲料(粗蛋白含量20%,代谢能3.1兆卡/千克干物质),供其自由采食。奶组和代乳粉组的预处理体重(平均2.4千克)和血液参数相似。山羊奶组和酸化代乳粉组的红细胞压积(分别为21.8%和34.2%)、总蛋白(分别为50.3克/升和46.6克/升)以及非酯化脂肪酸(分别为0.52和0.69毫当量/升)受日粮处理的影响。各处理组之间的最终体重(平均10.5千克)和平均血浆葡萄糖浓度(84至88毫克/分升)相似;然而,饲喂山羊奶的幼羊产的马海毛比饲喂酸化代乳粉的幼羊多13.8%。尽管存在生理差异,但酸化代乳粉仍可成功用于饲养安哥拉幼羊。