Study On Energy And Protein Feeding Standard Application And Related Technical Of Growth Small-fat-tail Sheep

This experiment was conducted to evaluate the day gain and the feed efficiency effects of the different feeds and the different nutritional levels in small-fat-tail sheep growth and lamb, as well as to evaluate the day grain and the economic efficiency effects of the different straw stalk by ammoniation, micro stored, the ensilage, the urea ensilage processing. Compared with energy and protein levels to the small-fat-tail sheep performance, determined the correlation technology of the feeds in the growth small-fat-tail sheep. The main results showed as follows:Trial one: 30-day age,15 birds male small-fat-tail sheep according to body equal completely randomized design, were divided into 3 groups each with 5. According to small-fat-tail sheep production area three kind of raising pattern, designed three nutritional level,group 1 was control group, only green hay, group green hay + corn ,group3 green hay +corn+ bean cake + bone powder +pre-mixed. The main results shows as follows: If the recommendation quantity metabolism energy and protein of the small-fat-tail sheep as 100%, group 1 only can be able to satisfy its 69.2% and 47.1%; group 2 can be able to satisfy its 92.1% and 61.8%; Compared with group 3 and group 1(ME:6.56MJ/kg,CP:5.80%), the every day gain improved 98.0%, the every day makes a profit enhanced to 157.0%, Compared with group 3 and group 2 (ME:8.73 MJ/kg, CP:7.60%), the every day gain improved 58.4%, the every day makes a profit enhanced to 115.0%, so improved the protein and energy of the feeds can remarkably enhanced the gain and the economic efficiency of the lamb.Trial two: 3-mouth age, about 20kg body, 20 birds small-fat-tail sheep (male 10, female 10) randomly divided into 2 groups each with 10.Group 1 was control group ,according to the locality extensive raising pattern designed, diets were corn straw+ green hay + corn +wheat skin, its digestion energy was 13.9 MJ/Kg and protein level was 136.4g/d; Group 2 was trial group, diets were corn straw+ green hay + concentrated adding feed, the digestion energy...