不同补水途径对脱水雏鸡存活率的影响

Effect of Different W ater Supply Methods on the Livabilityof Insufficiently W ater┐supplied Chickens

雏鸡长途运输、长时间脱水会给种雏的存活率造成严重影响。把２４０ 只雏鸡分成４ 组，分别在出雏后６５ ｈ、７０ ｈ、７５ ｈ、８０ ｈ 补水。每组又分３ 小组分别给于颈部皮下注射、强制饮水、自由饮水，其中自由饮水作对照。试验结果发现：雏鸡出壳后６５ ｈ 不吃不饮，之后妥善管理仍有较高的存活率，且随出雏后脱水时间的延长，颈部皮下注射水组的存活率呈上升趋势，而自由饮水组的存活率呈下降趋势。但３ 种方式中强制饮水组的雏鸡存活率一直保持在８５％ 以上，效果最好。

Long trip and long tim e insufficientw atersupply w illaffectchicken's livabili ty.240 chickens w ere chosen to be deivided into 4 groups according to w ater supplied tim esw hich w ere 65 hours、70 hours、75 hours and 80 hours after hatch. And 3 m ethods ofsupply ing w ater w ere given ateach tim e to each sudivided group,w hich w ere necraubcutaneous in jection、enforced drinking w aterand free drinking w ater. Am ong these m ethods,free drinkingw ater w as the control,the results of the experim ent show that chickens could survive nonw ater and food for 65 hours after hatch if they w ere taken good care of;and that w ith thetim e prolonged after hatcht,the livability of the groupe injected drinking w ater,ascendedw hile the livability of the group,w hich drank w ater freely,descended. But am ong the threem ethods,the group w hich w ese enforced drinking w ater had better livability,w hich keptabove 85% . So enforced drinking w ater is the m ostbeneficial.