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Life Sciences Commons

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Poultry or Avian Science

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South Dakota State University

1978

Articles 1 - 3 of 3

Full-Text Articles in Life Sciences

Deterioration Of Eggshell Quality And Calcium Metabolism In Laying Hens, Chang Won Kang Jan 1978

Deterioration Of Eggshell Quality And Calcium Metabolism In Laying Hens, Chang Won Kang

Electronic Theses and Dissertations

The present study was undertaken to: (1) develop a reliable method of measuring eggshell quality, (2) determine whether diet alterations that cause a somewhat reduced rate of egg production could influence shell quality, and (3) determine whether certain biochemical parameters involved in calcium metabolism are related to shell quality.


Fatty Liver-Hemorrhagic Syndrome (Flhs) In Caged Laying Hens, Richard A. Nelson Jan 1978

Fatty Liver-Hemorrhagic Syndrome (Flhs) In Caged Laying Hens, Richard A. Nelson

Electronic Theses and Dissertations

A series of eleven experiments was conducted with caged laying hens to study the effects of diet and strain on production and fat accumulation in the liver. In Experiments 1 to 4, a normal ad libitum feeding regime was used, while in Experiments 5 to 11, a force-feeding technique was used as a procedure to increase the incidence of FLHS. Four commercial hybrid strains and a straightbred SCWL (Regional Control) strain were utilized in this study. Choline supplementation at 1500 mg/kg of diet increased egg production from 1 to 11% while decreasing total liver lipid as much as 50%. Supplementation …


Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani Jan 1978

Effects Of Strain On Response Of Laying Hens To Low Protein Diets And Amino Acid Supplements, Ali B. Kashani

Electronic Theses and Dissertations

Corn is by far the most widely used cereal grain in the United States for poultry feeding. In addition to its high energy content, corn provides adequate amounts of the essential fatty acids for maximum rates of growth and egg production. Palatability and ample xanthophyll and provitamin A contents of fresh corn are some o the other contributing factors for its popularity in livestock feeding. The most serious limitation in the nutritional value of corn as well as other cereal grains lies in the fact that they are low in both quantity and quality of protein. It has been a …