Vitamin E and Reproduction in Turkeys

Dehydrated Alfalfa Meal, Condensed Fish Solubles, Distillers Dried Solubles and Dried Whey as Supplements to an All-Vegetable Protein Turkey Laying Diet

“…The tocopherol content of eggs collected at the end of the seventeenth week of the present study varied considerably (Table 1), but was higher in all instances than values reported by Atkinson et al (1955) where the diet of the hens was not supplemented with a-tocopheryl acetate. This might account for the fact that the anomalous conditions of the embryos reported by Ferguson et al (1954) and Atkinson et al (1955) were not encountered in the present study.…”

“…This might account for the fact that the anomalous conditions of the embryos reported by Ferguson et al (1954) and Atkinson et al (1955) were not encountered in the present study. It is possible that vitamin E added to the diets in the present study would have aided in increasing the percent hatchability in all groups.…”

“…The embryonic mortality peak in eggs from turkey hens not fed the supplementary vitamin E has been reported to be between the twenty-fourth and twentyeighth day of the incubation period (Jensen, 1953;Atkinson et al, 1955;Ferguson et al, 1954). The tocopherol content of egg yolks from turkey hens fed a practical type ration not supplemented with vitamin E was reported by Atkinson et al (1955). They found in this instance that the average tocopherol content was 200 mcg./gm.…”

“…Jensen (1953) found that hatchability of eggs from turkey hens decreased within nine weeks to a level of 30 to 40%, and that the addition of vitamin E to the basal diet maintained a high hatchability. Atkinson et al (1955) found that when vitamin E was added to a practical type ration it was effective in maintaining a high hatchability for Beltsville Small White turkey eggs. The embryonic mortality peak in eggs from turkey hens not fed the supplementary vitamin E has been reported to be between the twenty-fourth and twentyeighth day of the incubation period (Jensen, 1953;Atkinson et al, 1955;Ferguson et al, 1954).…”

“…Atkinson et al (1955) found that when vitamin E was added to a practical type ration it was effective in maintaining a high hatchability for Beltsville Small White turkey eggs. The embryonic mortality peak in eggs from turkey hens not fed the supplementary vitamin E has been reported to be between the twenty-fourth and twentyeighth day of the incubation period (Jensen, 1953;Atkinson et al, 1955;Ferguson et al, 1954). The tocopherol content of egg yolks from turkey hens fed a practical type ration not supplemented with vitamin E was reported by Atkinson et al (1955).…”