産卵鶏に対するカポック粗油給与の影響

概要

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To find out effects of kapok crude oil added to the diet on the laying hens and the quality of their eggs, a feeding experiment was conducted. Six kinds of diets (of 45.45,90.9,181.8,363.6 and 729.2 mg/100g kapok crude oil and of no kapok crude oil as a control) were fed for six weeks to each lot of five laying hens (3-gen 564 strain) respectively (Table 1). The egg production, feed intake, feed conversion, body weight and pink white of stored eggs were investigated. The resuts obtained are summarized as follows : The influences of the oil on the feed intake, egg production and feed conversion were scarcely observed, except in 729.2mg/100 g-lot. The diet of 727.2mg/100 g-lot had a poor palatability and caused the decrease of body weight. It was found that the supplementation of 45.45 to 727.2 mg/100g kapok crude oil to the diets produced a higher rate of the eggs of thin and broken shells than that of the control lot. Ingestion of kapok crude oil produced the convergence of the pH values of the white and yolk, and the pink white condition when cold. The decreased iron contents of yolk after a long storage occurred in the groups supplemented with kapok crude oil. Only the eggs from these groups showed development of the pink iron-conalbumen complex in the white due to diffusion of iron from the yolk.
岡山理科大学の論文