摘要
为了探索本地区猪的适宜饲养密度，将７４头断奶仔猪（长自×成华）随机分为８组，在面积为９．１３ｍ２的水泥地面猪圈内，每圈分别养１、２、３、４、５、６、７、８头，其饲养密度分别为９．１３、４．５７、３．０４、２．２８、ｌ．８３、ｌ．５２、１．３０和１．１４ｍ２／头。各组相应的日增重分别为４５９．２、４８６．３、５１３．９、５０３．１、５１０．２、４９６．５、４７１．６．和４４５．９ｇ（Ｐ＜０．０１）；每日采食风干料分别为１．６３、１．６９、１．７１、１．７０、１．６９、１．６８、１．６６和１．６４ｋｇ；每增重１ｋｇ耗ＤＥ４６．１０、４５．３０、４３．３８、４４．００、４３．０８、４４．００、４５．８５和４７．９０ＭＪ，随饲养密度的增大，咬斗频率（天）从０．０８次（２组）上升到０．３５次／头（８组），站立活动时间从６．７９（１组）增加到８．３５小时／头（８组）。利润和产出投入比以５组和６组为好，饲养密度过高或过低都将降低经济效益。
weanling pigs were divided into eight groups at random were feed-ed in sties of.13m2 with
cement floor to determine suitable stocking density,slockingdensities were 9.13、4.57、3.
04、2.28、1.83、1.52、1. 30 and l.14 m2 per pig for eachgrow.Daily gain. DM intake and feed
efficiency were 459.2、1.63 and ll.04,486.3、1.69 and l0.82,513.9、1.71 and l0.36,503.1、
1.70 and l0.51,510.2、1.69 and 10.29,496.5、1.68 and l0.51,471.6、1.66 and 10.95,445.99、
1.64 kg and ll.44 Mcal DE/kg gain, respectively. As stocking density was strengthered,biting
frequency(per day)and standing time (per day)increased from 0.08(Group 2)and6.79(Group l)to
0.35times per pig(Group 8)and 8.35 hrs per pig(Group 8). Prefit and ratio of output to
in-vestment were best for group 5 and 6.Both too high and too low stocking densities
maydecrease economy benefit.
出处
《家畜生态》
1994年第2期14-17,共4页
Ecology of Domestic Animal
关键词
生长猪
饲养
密度
行为
经济效益
pigs:Stocking density
Behavior
Economy benefit
