Moss B R
J Dairy Sci. 1975 Nov;58(11):1682-7. doi: 10.3168/jds.S0022-0302(75)84768-0.
Consumption of 0% mustard meal and 15% soybean meal, 7.5% mustard meal and 7.5% soybean meal, or 15% mustard meal and 0% soybean meal rations did not differ in palatability studies with 10 group-fed lactating cows when the mustard meal was treated with 3% caustic soda. Order of preference was for 0, 7.5, and 15% mustard meal rations when mustard meal was untreated. Twelve lactating cows were in each of two lactation trials to compare the three rations of untreated mustard meal. Milk, milk fat, and solids-not-fat, and milk protein did not differ for either trial. Protein-bound iodine of plasma for all cows were within the normal range. Three cows were placed on each of the three rations and received a minimum of 9 kg per day for 6 mo preparturition to determine goitrogenic effects. All cows gave birth to normal, vigorous calves. Limited organoleptic evaluations of milk indicated that untreated mustard meal may impart a detrimental flavor to milk, but a taste panel could not differentiate between milk from cows on the three rations of treated mustard meal. Twenty-one male and 43 female Holstein claves received either 0, 10, or 20% mustard meal starter rations from birth to 3 mo of age. Growth, feed consumption, or plasma protein-bound iodine did not differ.
在对10头群饲泌乳奶牛进行的适口性研究中，当用3%的苛性钠处理芥粕时，0%芥粕和15%豆粕、7.5%芥粕和7.5%豆粕或15%芥粕和0%豆粕的日粮之间没有差异。当芥粕未处理时，偏好顺序为0%、7.5%和15%芥粕日粮。在两项泌乳试验中，每组有12头泌乳奶牛，以比较三种未处理芥粕日粮。两项试验中，牛奶、乳脂、非脂固形物和乳蛋白均无差异。所有奶牛血浆中的蛋白结合碘均在正常范围内。在产前6个月，将三头奶牛分别置于三种日粮中，每天至少饲喂9千克，以确定致甲状腺肿作用。所有奶牛都产下了正常、健壮的犊牛。对牛奶的有限感官评价表明，未处理的芥粕可能会给牛奶带来不良风味，但一个品尝小组无法区分采食三种处理过的芥粕日粮的奶牛所产牛奶的差异。21头雄性和43头雌性荷斯坦犊牛从出生到3月龄分别采食0%、10%或20%芥粕的起始日粮。生长、采食量或血浆蛋白结合碘均无差异。
