Fred T. Shultz
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View article: Avian Genetic Resources at Risk: An Assessment and Proposal for Conservation of Genetic Stocks in the USA and Canada
Avian Genetic Resources at Risk: An Assessment and Proposal for Conservation of Genetic Stocks in the USA and Canada Open
Genetic diversity, in both wild and domestic species, is a limited resource worth preserving for future generations (Oldfield 1984; Alderson 1990; FAO 1992; NRC 1993; Bixby et al. 1994). While many strong advocates promote the conservation…
View article: Turkey Muscle Growth and Focal Myopathy
Turkey Muscle Growth and Focal Myopathy Open
Muscle structure and blood enzyme activity were studied to 16 wk of age in lines of turkeys selected for rapid growth. The body and carcass weights were measured, frozen sections of breast and leg muscles examined, and plasma creatine kina…
View article: Research Note: Genetic Effects on Embryonic Growth in Domestic Turkeys
Research Note: Genetic Effects on Embryonic Growth in Domestic Turkeys Open
Embryo growth rates for two strain crosses of domestic turkeys were compared. Female parents of both crosses came from the same flock of Nicholas parent stock hens. The strain providing sires for Cross L was approximately twice the adult s…
View article: Effects of Inbreeding on Production Traits in Turkeys
Effects of Inbreeding on Production Traits in Turkeys Open
The effects of inbreeding on egg number, egg weight, percent hatchability, percent mortality, and 17-week body weight were studied on data from two generations of two breeding flocks used as male and female parents of commercial turkeys, r…
View article: A Device for Measuring Yolk Size
A Device for Measuring Yolk Size Open
THE trend towards marketing chicken eggs by parts as opposed to whole eggs raises the need for a better understanding of the factors affecting nutrient yield. A host of genetic, nutritional, and managemental interrelationships must be reso…
View article: The Effect of Crinoline Cloth and Crowding of Turkey Eggs on Hatchability and Spraddle Legged Poults
The Effect of Crinoline Cloth and Crowding of Turkey Eggs on Hatchability and Spraddle Legged Poults Open
A small but significant economic loss occurs at hatching from spraddle legged poults. Many hatcherymen believe that crowding turkey eggs on the hatching tray reduces the incidence of this condition. As part of a general study on hatching e…
View article: Vitamin Supplements and Squab Production
Vitamin Supplements and Squab Production Open
THE ration used almost exclusively in the commercial squab industry consists of whole grains and peas plus a grit and mineral mixture. Although such rations allow fairly good reproduction, they are not well supplied with certain vitamins t…