Teat diameter gradient associated with milk yield and somatic cell count in British Friesian cows

Rathore, A. K.

doi:10.1017/s0003356100011910

Cited by 4 publications

(1 citation statement)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This may be due to less suitability of these teats for milking machine. Also udders with long teats were easier for mastitis infection through touching pens ground or dirty back legs of the animal these results are in agreement with those reported by Rathore (1977).…”

Section: Relationship Of Somatic Cell and Mastitis With Abnormal Udde...supporting

confidence: 92%

Evaluation of the Relationship Between Milk Somatic Cell and Abnormal Udder Conformation in Holstein Friesian Cows Using Animal Model.

Amin¹,

Mostafa

Gere

2002

Journal of Animal and Poultry Production

View full text Add to dashboard Cite

Genetic, phenotypic correlations and heritability of milk somatic cell either count (SCC) or score (SCS) with mastitis udders (MU) and abnormal udder conformation (AUC) of 9368 Hungarian Holstein Friesian cows as daughters of 318 sirs of 28643 observation sample test-day of somatic cell count were estimated using animal model MTDFREML. Correlations of SCC and SCS with MU were higher than those with abnormal teat form. Genetic and phenotypic association of MU with SCS was higher than with SCC. The highest positive genetic relationships were presented for MU with non-cleft udder and unbalanced quarters. Suspended udder was phenotypic highly correlated with SCC and SCS. Long teat was strongly correlated with MU either genetic or phenotypic. Phenotypic correlation of unbalanced teat position with MU, SCC and SCS were higher than genetic estimates. Suspended udder was strongly genetic correlated with long udder, non-cleft udder, unbalanced quarters and unbalanced teat position. Short teat vs. long teat was great correlated genetically with suspended udder and unbalanced teat position. Estimates of heritability, variance and co-variances component are tabulated.

show abstract

Section: Relationship Of Somatic Cell and Mastitis With Abnormal Udde...supporting

confidence: 92%

Evaluation of the Relationship Between Milk Somatic Cell and Abnormal Udder Conformation in Holstein Friesian Cows Using Animal Model.

Amin¹,

Mostafa

Gere

2002

Journal of Animal and Poultry Production

View full text Add to dashboard Cite

show abstract

Udder and Teat Morphology Related to Mastitis Resistance: A Review

Seykora

McDaniel

1985

Journal of Dairy Science

View full text Add to dashboard Cite

Annual losses by mastitis are estimated to be in excess of two billion dollars in the United States. Udder and teat morphologies have been associated with incidences of mastitis without clear conclusion on the closeness. Streak canal diameter was correlated with udder health, but it is difficult to measure. Udder depth and teat-end shape have been associated with udder health. Selection to reduce frequencies of cows with deep udders and flat, disk, or inverted teat ends may reduce mastitis incidence. Heritabilities of udder morphology are moderate to high, and a single score during the lifetime of a cow may be adequate for selection. There is no concensus in the literature on relationships between mastitis and teat size, general teat shape, teat-end lesions, teat pigmentation, or milk flow rate. Different breeds, milking procedures, measures of mastitis, and statistical procedures may account for different conclusions. Genetic approaches to improve mastitis resistance of dairy cattle seem warranted. This paper attempts to summarize evidence dealing with possible physical bases for genetic variation associated with mastitis in dairy cattle.

show abstract

Heritabilities of Teat Traits and their Relationships with Milk Yield, Somatic Cell Count, and Percent Two-Minute Milk

Seykora¹,

McDaniel²

1985

Journal of Dairy Science

View full text Add to dashboard Cite

Teat diameter gradient associated with milk yield and somatic cell count in British Friesian cows

Cited by 4 publications

References 5 publications

Evaluation of the Relationship Between Milk Somatic Cell and Abnormal Udder Conformation in Holstein Friesian Cows Using Animal Model.

Evaluation of the Relationship Between Milk Somatic Cell and Abnormal Udder Conformation in Holstein Friesian Cows Using Animal Model.

Udder and Teat Morphology Related to Mastitis Resistance: A Review

Heritabilities of Teat Traits and their Relationships with Milk Yield, Somatic Cell Count, and Percent Two-Minute Milk

Contact Info

Product

Resources

About