文档介绍：该【提高生长性能，管理好猪的环境(幻灯片)-Maximizi 】是由【zhangkuan1438】上传分享，文档一共【81】页，该文档可以免费在线阅读，需要了解更多关于【提高生长性能，管理好猪的环境(幻灯片)-Maximizi 】的内容，可以使用淘豆网的站内搜索功能，选择自己适合的文档，以下文字是截取该文章内的部分文字，如需要获得完整电子版，请下载此文档到您的设备，方便您编辑和打印。MaximizingGrowthPerformanceManagingthePigs’Environment提高生生长性性能,,管理理好猪猪的环环境
MikeEllis
麦克艾艾利斯斯博士士
DepartmentofAnimalSciences
UniversityofIllinois
伊利诺诺大学学动物物科学学系
商业性性能和和性能能潜力力
Maximizingtotalfacilityoutput提高设设备的的总利利用率率
Keyindexoffacilityoutputis:设备产产出量量的关关键指指标
Liveweightofpigsproduced/unitoffloorspace
kg/squaremeter单位面面积所所产猪猪的活活重(千克克/平平方米米)
Abetterindexofperformancethangrowthrate?
比生长长率更更好的的性能能指标标
Notcalculatedbymanyproducers许多养养猪者者都不不计算算
Compromisebetweenindividualanimalperformanceandtotalbuildingoutput个体性性能和和设备备总产产量的的折中中
ReducedGrowthRate生长率率降低低
Causesinclude:原因包包括
Genetics遗传
Disease疾病
Gender性别
Birthweight初生重重
Diet饲粮
Stockingdensity:floorandfeederspace,groupsize
饲养密密度::每猪猪占地地面积积和采采食槽槽位,,群体体大小小
Effectiveenvironment:temperature,humidity,andairquality
有效环环境::温度度,速速度和和空气气质量量
Socialenvironment群居环环境
Temperatureeffectonperformanceingrowingpigs温度对对生长长猪性性能的的影响响
Atotalof256YorkshirexHampshireorpurebredDurocpigs()
for4weeks(Hyunetal.,1998)
Thermoneutral
(24oC)
Cycling/High
(28-34oC)
Thermoneutral
(24oC)
Cycling/High
(28-34oC)
ADG,kg
ADFI,kg
Gain:Feed,kg/kg
Restrictedspaceallowanceeffectonperformanceingrowingpigs圈栏面面积对对生长长猪性性能的的影响响
Atotalof256YorkshirexHampshireorpurebredDurocpigs()
for4weeks(Hyunetal.,1998)
Normalspace
()
Restrictedspace
()
ADG,kg
ADFI,kg
Gain:Feed,kg/kg
Normalspace
()
Restrictedspace
()
Mixingstresseffectonperformanceingrowingpigs混群应应激对对生长长猪的的影响响
Atotalof256YorkshirexHampshireorpurebredDurocpigs()
for4weeks(Hyunetal.,1998)
ADG,kg
ADFI,kg
Gain:Feed,kg/kg
Static
Mixed
Static
Mixed
Effectsofnumberofstressorsonperformance:(a)averagedailygain;
(b)dailyfeedintake;(c)gain:
TemperatureEffectsonGrowth温度度对对生生长长的的影影响响
Comfortzone适温温区区
Rangeoftemperatureswithinwhichanimalneedstoneitherincreaseheatproductionorincreaseheatlosstomaintainastablebodytemperature动物物既既不不需需要要增增加加产产热热也也不不需需要要增增加加散散热热就就能能保保持持稳稳定定体体温温的的温温度度范范围围
FloorType:Straw垫草草Solid水泥泥Fully全漏漏缝缝
地板板类类型型BeddedConcreteSlatted
oCoCoC
PigletsPre-weaning(Age)哺乳乳仔仔猪猪
Day1303132
Day3283029
Day5242627
Day17
222425
PigsPostWeaning(Weight)断奶奶猪猪
6kg(dofweaning)272830
6kg(oncestartedeating)262729
8kg242628
10kg212325
15kg192023
20kg151721
30kg131519
45kg101217
60kg91116
90kg81015
MEATANDLIVESTOCKCOMMISSION,1999
CriticalTemperatures关键键温温度度