Veltmann J R, Jensen L S
Poult Sci. 1986 Mar;65(3):538-45. doi: 10.3382/ps.0650538.
Susceptibility to vitamin A (vit A) toxicosis was compared in Single Comb White Leghorn chicks, broilers, and turkey poults by giving an aqueous vit A solution of varying concentrations by crop intubation. Results of these studies indicate a differential response to vit A toxicosis within breeds and across species. Pair-fed treatments clearly demonstrated that the effects of excess vit A on bone calcification were independent of anorexia. A comparison between turkey poults receiving either a constant dietary level of vit A or vit A by gavage showed that the latter markedly increased the severity of vit A. toxicosis.
通过嗉囊插管给予不同浓度的维生素A水溶液，比较了单冠白来航鸡雏鸡、肉鸡和火鸡雏对维生素A（vit A）中毒的易感性。这些研究结果表明，不同品种和不同物种对vit A中毒的反应存在差异。配对饲喂处理清楚地表明，过量vit A对骨钙化的影响与厌食无关。对接受恒定日粮水平vit A或通过灌胃给予vit A的火鸡雏进行比较，结果表明，后者显著增加了vit A中毒的严重程度。
