摘要
四日龄Aiboi Acies肉鸡健雏80只随机分为四组,分别喂给钙-磷缺乏(Ca0.02％,P0.30％)、缺钙(Ca0.02％,P0.71％)、缺磷(Ca0.95％,P0.30％)和正常对照(Ca0.95％,P0.71％)日粮,进行了系统的临床观察。缺磷组最先发病,钙-磷缺乏组和缺钙组随后发病,发病率均为100％并出现死亡。病雏主要表现为两腿变软,弯曲,跛行,嗜卧,龙骨变形;精神沉郁,食欲减损,生长发育受阻。发病各组血清碱性磷酸酶活性异常升高和胫骨粗灰分、钙磷含量显著降低。钙-磷缺乏组血清钙磷值、缺钙组血清钙值和缺磷组血清磷值均显著低于对照组。结果表明,血清钙磷值特异性变化可作为雏鸡钙-磷缺乏症、缺钙症和缺磷症区别诊断的依据。
Eighty-day old Aiboi Acies broiler chicks were divided into four groups, and fed on diets as follows, respectively. 1 . calcium-phosphorus deficient ( Ca 0.02%, P 0.30%), 2. calcium deficient ( Ca 0.02%, P0.71%), 3. phosphorus deficient ( Ca0.95%, P 0.30%) and 4. controls ( Ca 0.95%, P 0.71%) for three weeks. The signs of chicks began to appear at the 1st week in group 3 and at the 2 nd week in groups 1 , 2 during experiment. Morbidity of groups 1 , 2 and 3 was 100% and some chicks died. The affected chicks showed leg weakness and distrotion, difficulty standing, severe lameness, crooked keel, depression, lack of appetite and stumted growth, the serum alkaline phos-phatase activities were much higher and tibial ash, Ca and P contents much lower in groups 1 , 2 and 3 than in group 4 . The serum Ca and P concentrations of group 1, the serum Ca concentration of group 2 and the serum P concentration of group 3 decreased markedly. Results demonstrated that the rickets in chicks caused by different factors can be diagnosed in the clinic according to the characteristic changes of the serum Ca and P concentrations.
出处
《畜牧兽医学报》
CAS
CSCD
北大核心
1992年第1期92-96,共5页
ACTA VETERINARIA ET ZOOTECHNICA SINICA
关键词
佝偻病
雏鸡
钙磷缺乏
诊断
鸡
Rickets , Chicks , Calcium and phosphorus deficiency, Clinical observation
