Alkaline Phosphatase and Egg Formation

Gutowska, Marie S.; Parkhurst, Raymond T.; Parrott, E. M.; Verburg, R. M.

doi:10.3382/ps.0220195

Cited by 29 publications

(7 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The values of phosphatase activity in the bones of hens as reported by Gutowska et al (1943) were practically the same in spite of different turnover of calcium in hens which were good and poor producers with good and poor shell textures. Since the hens used in our experiment were on a normal diet, no gross demineralization of the bones may have occurred.…”

Section: Methodsmentioning

confidence: 53%

Dietary Calcium and Phosphorus and Variations in Plasma Alkaline Phosphatase Activity in Relationship to Physical Characteristics of Egg Shells

Paul

Snetsinger

1969

Poultry Science

View full text Add to dashboard Cite

Section: Methodsmentioning

confidence: 53%

Dietary Calcium and Phosphorus and Variations in Plasma Alkaline Phosphatase Activity in Relationship to Physical Characteristics of Egg Shells

Paul

Snetsinger

1969

Poultry Science

View full text Add to dashboard Cite

“…The view has been presented that S.A.P. activity is related to egg production in hens (Gutowska et al, 1943;Wilcox et al, 1963) while others have presented contradictory data (Auchinachie and Emslie, 1934;Common, 1936;Sutts et al, 1957). Much of the discord concerning this relationship can be attributed to dietary differences, specie, strain and age differences of experimental subjects, time of year, time of sampling relative to food and water consumption, as well as the laying cycle, and repeatability of enzyme determinations among investigators.…”

mentioning

confidence: 91%

Two-Way Selection for Serum Alkaline Phosphatase in Laying Hens

1972

View full text Add to dashboard Cite

The effectiveness of two way selection for serum alkaline phosphatase (S.A.P.) was investigated to determine its influence on productive traits in a White Leghorn population for three generations. The difference between females in the high and low lines at the end of three generations was S3 percent of the S.A.P. level of the foundation population. Selection was based entirely on phenotypic differences. The divergence of the lines was significant and greater in the high line. Computed heritabilities from within sire dam offspring regression for S.A.P. was .42. Heritability estimates from the analysis of variance sire component was .12 ± .09, and from the dam component .76 ± .16. The realized heritability was .45 and .36 for high and low lines respectively.No correlated responses were found during the time of this study for hen day egg production, egg weight, specific gravity or mortality. Hatchability decreased significantly in the high line and fertility decreased significantly in the low line.A build up of phosphatase in the blood occurred during the formation of the egg which would be an indication that the enzyme is involved in egg shell formation.

show abstract

“…The relation of egg production to total blood akp activity has been reported by Gutowska et al (1943); Tanabe and Wilcox (1960); Wilcox et al (1962); Svozil and Pavel (1971) and Rao et al (1969). Other reports by Auchanachie and Emslie (1934); Common (1936) and Stutts et al (1957) failed to find any correlations between egg production and total akp activity.…”

Section: Introductionmentioning

confidence: 70%

Disc Electrophoresis of Turkey Serum Alkaline Phosphatase Isoenzymes Using Polyacrylamide Gel

Coleman

Wolford

1975

Poultry Science

View full text Add to dashboard Cite

The isoenzymes of alkaline phosphatase (akp) in turkey serum were separated by disc electrophoresis using polyacrylamide gel as the supporting medium Test subjects consisted of 103 turkeys maintained for the "Vibrator" condition at Michigan State University; and 46 female turkey of the Nicholas Broad Breasted White egg laying strain. Thirteen distinct akp bands were isolated. The 13 bands were observed to occur in 13 different patterns, each pattern being classified as a separate zymogram. Specific types of zymograms were detected for "Vibrator" birds vs. Nicholas strain; females vs, males; high intensity egg production vs. low intensity egg production and molting vs. laying.

show abstract

Alkaline Phosphatase and Egg Formation

Cited by 29 publications

References 19 publications

Dietary Calcium and Phosphorus and Variations in Plasma Alkaline Phosphatase Activity in Relationship to Physical Characteristics of Egg Shells

Dietary Calcium and Phosphorus and Variations in Plasma Alkaline Phosphatase Activity in Relationship to Physical Characteristics of Egg Shells

Two-Way Selection for Serum Alkaline Phosphatase in Laying Hens

Disc Electrophoresis of Turkey Serum Alkaline Phosphatase Isoenzymes Using Polyacrylamide Gel

Contact Info

Product

Resources

About