EurekaMag.com logo
+ Site Statistics
References:
53,517,315
Abstracts:
29,339,501
+ Search Articles
+ Subscribe to Site Feeds
EurekaMag Most Shared ContentMost Shared
EurekaMag PDF Full Text ContentPDF Full Text
+ PDF Full Text
Request PDF Full TextRequest PDF Full Text
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter
Follow on Google+Follow on Google+
Follow on LinkedInFollow on LinkedIn

+ Translate

Relationship between milk progesterone concentration and milk yield, fat and total nitrogen content



Relationship between milk progesterone concentration and milk yield, fat and total nitrogen content



British Veterinary Journal 132(5): 477-486



Milk samples were collected during routine milk recording from a herd of 68 dairy cows, at the evening and following morning milkings. Milk yields, fat and total N contents were measured. Progesterone concentrations were higher in samples obtained from the evening milking than in those of the morning one. The evening and morning progesterone concentrations were highly correlated. Among the 3 other criteria, total N content was found to account for the largest part of the variance in morning milking progesterone concentration. It should be the first to be estimated when determining accurate progesterone concentration values.

(PDF same-day service: $19.90)

Accession: 006297671

Download citation: RISBibTeXText

PMID: 963519

DOI: 10.1016/s0007-1935(17)34585-2



Related references

Relationship between progesterone concentration and milk yield, fat and total nitrogen content. British Veterinary Journal 132(5): 477-486, 1976

The total amino acid content of cows' milk and its relationship with milk yield. Veterinarni Medicina 29(10): 593-600, 1984

Relationship between content of crude protein in rations for dairy cows and milk yield, concentration of urea in milk and ammonia emissions. Journal of Dairy Science 85(7): 1829-1838, 2002

Correlation between bovine milk somatic cell counts and milk total protein, nonprotein nitrogen and milk urea nitrogen content. 2007

Milk yield and fat content. I. A study of the relationship between daily milk yield and the fat content of the milk of Lowland breeds of cattle. J. Landw, 88: 1, 4-78, 1940

Chronological and geneaological development of relationship between milk yield, milk fat yield and milk fat content in Black Pied cattle from East Friesland. Zuchtungskunde. 38: 4, 137-48, 1966

Milk and milk products. Determination of the total nitrogen content of milk, dried milk, dried whey, caseins and caseinates. Kjeldahl reference method. Belgian Standard (NBN V 21-003): 5, 1975

Monitoring cows for metabolic imbalances during peak lactation by analysing milk. Part 1. Daily milk yield, milk fat and milk protein content, milk fat:milk protein ratio, and urea content. Tierarztliche Umschau 52(6): 319-324, 1997

The relationship between milk yield, milk fat and milk protein content in a population of cows from Southern Moravia. XV geneticke dny, Ceske Budejovice, Czechoslovakia, 16-18 zari 1991: 195, 1991

Effect of the biometrical relationship among total milk yield, milk constituent yield, and per cent of milk constituent on response to selection. J Dairy Sci 49(10): 1230-1234, 1966

Progesterone in milk: determination by radioimmunoassay, relationship to corpus luteum function and milk fat concentration. Zuchthygiene 8(4): 154-162, 1973

Part-lactation milk yield and its relationship with total milk yield in Beetal and its crosses with Alpine and Anglo-Nubian. Haryana Agricultural University Journal of Research 12(2): 174-177, 1982

The corrected maximum milk yield per minute in herds, its variation and its relationship with the total milk yield per milking. Zivocisna Vyroba 20(2): 99-109, 1975

Relationship between milk yield in machine milking during 120 seconds and the total milk yield in lactating ewes. Vedecke Prace Vyskumneho Ustavu Ovciarskeho v Trencine (8): 43-48, 1976

A comparison of oestrus detection by pedometer, milk progesterone content, electrical conductivity of vaginal mucus and milk yield changes. Proceedings, VI World Conference on Animal Production: 584, 1988