《猪饮水管理》ppt课件

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1、Water“TheForgottenNutrient”P.A.Thacker水-被遗忘的营养FunctionsofWater水的功能TemperatureRegulation体温调节Transportation运输ChemicalReactions生化反应Lubrication润滑剂Protection保护SourcesofWaterForSwine猪体内水的来源DrinkingWater饮水WaterinFeed饲料中的水MetabolicWater代谢产生的水RoutesofWaterExcretion水排泄的途径Lungs肺Skin皮肤Kidney肾脏

2、Feces粪便FactorsAffectingWaterRequirements影响水需求的因素EnvironmentalTemperature环境温度RelativeHumidity相对湿度HealthofPig猪健康状况AmountofFeedConsumed采食量ProteinContentofDiet食物的蛋白含量SaltContentofDiet食物中盐的含量WaterContentofDiet食物的水分含量WaterSalinity水中的盐含量ReasonsforReducedWaterConsumption造成饮水下降的原因LowWaterPre

3、ssure水压低RustedorBlockedPipes铁锈或杂物堵塞管道FrozenWaterLines结冰WaterSupplyTurnedOff水源关闭TooManyPigsinPen猪的密度过大水流量不够水流量不够水管漏水饮水设施不健全SymptomsofWaterDeprivation缺水的征兆ReducedFeedIntake采食量下降IncreasedHeartRate心跳过快IncreasedBodyTemperature体温升高IncreasedRespiration呼吸急促Death死亡NeverRestrictWaterIntakeofP

4、igs猪绝对不要限水EstimatedWaterRequirements水的需要量Cleary(1983)Pederson(1994)Lumb(1998)SucklingPigs乳猪---1-20.27WeanlingPigs断奶仔猪3-51-51.2Grow/Finish育肥猪5-75-105-6Gestating怀孕母猪12-1512-205-8Lactating泌乳母猪18-2325-3515-30RecommendedWaterFlowRatesforSwine(L/min)水流量推荐Gadd(1988)Carr(1993)Pederson(1994)

5、SucklingPigs乳猪0.250.300.5WeanlingPigs断奶仔猪0.500.70.5-0.830kgGrow育成猪0.661.00.870kgFinish育肥猪0.751.51.2GestatingSows怀孕母猪2.251.5-2.01.5-2.0LactatingSows泌乳母猪2.252.54.0SucklingPigs乳猪Relationshipbetweenwaterconsumptioninfirstweekandpreweaningmortality第一周的饮水量与断奶前的死亡率相关Highwaterintakestimulat

6、escreepfeedconsumption饮水增加刺激采食量的增加WaterUsebyWeanlingPigs断奶仔猪水的饮水量Affectedbywaternippleposition受水嘴位置的影响Waterusehigherwithhigherflowrate水压越高饮水量越大Consumemorewaterwithpelleteddietsthanwithmash吃颗粒料比吃粉料的饮水量大CalculationofDailyWaterIntakeofWeanlingPigs(L/day)断奶仔猪饮水量的计算WaterIntake饮水量=1.49+(3

7、.053dailyfeedintakeinkg)每天采食量Brooksetal.,1984EffectofFlowRateofWateronWeanlingPigPerformance水流速对生产性能的影响WaterDeliveryRate(mls/minute)水流速175350450700TimeSpentDrinking(min)饮水耗时4.462.972.932.32WaterIntake(L/day)饮水量0.781.041.321.63FeedIntake(g/day)采食量303323341347DailyGain(g/day)日增重21023

8、5250247FeedEfficien