نتایج جستجو برای: feed efficiency 635
تعداد نتایج: 447993 فیلتر نتایج به سال:
Abstract United States seedstock sheep producers have selected for higher weaning and post-weaning weights using estimated breeding values approximately forty years. Despite this, little work has investigated if the increased performance inadvertently resulted in feed intakes, increasing total costs producer. Eighty range-breed ewe lambs (forty Targhee Rambouillet) were enrolled a residual inta...
Relationships Among Whole-and Part-Lactation Gross Feed Efficiency, Feed Consumption, and Milk Yield
The effect of dietary protein level and feed restriction on performance, body temperature and hematological values was evaluated, using Ross 308 broiler chicks under heat stress. For this purpose, three dietary treatments were fed to broilers during 21 to 42 days of age. Two treatments consisted of diets with protein levels recommended by NRC, 1994 and 85% of NRC recommendation and were fed ad-...
kermanshah province is the main producer of various chickpea cultivars in iran. in this study a laboratory peg-tooth thresher was employed for chickpea threshing. the effect of cylinder speed (9, 12, 15 m/s), concave clearance (12, 14, 16 mm), feed rate (80, 160, 240 kg/h) and material moisture content (5, 10, 15% w.b.) was studied on percentage of grain damage, threshing efficiency and percent...
early weanling and rearing of lambs on milk replacer is an important act to increasing flock productivity. two experiments were carried out to compare the voluntary intake and nutrients digestibility ewe milk and commercial milk replacer and their feeding effects on the growth rate, feed intake and feed efficiency of suckling lambs. in experiment 1, eight lambs (two 4-lamb groups) at 31 to 34 d...
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