+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Phenotypic and genetic relationships between reproduction and milk production in dairy goats



Phenotypic and genetic relationships between reproduction and milk production in dairy goats



Journal of Dairy Science 65(12): 2373-2383



First lactations of 3286 Alpine, Nubian, Saanen, and Toggenburg does were used to assess consequences of correcting milk and fat yields for age and season of kidding and to estimate heritabilities and phenotypic and genetic relationships between milk production and reproductive traits. Does were classified into those that reproduced successfully during their first breeding year and those that did not and were held over to the following year before reproducing successfully. Heritabilities of milk and fat yield and fat percent adjusted for age-season were .68, .61, and .54 for Alpines, Saanens, and Toggenburgs and .35, .54, and 1.09 for Nubians. Phenotypic and genetic correlations between date of kidding and unadjusted milk and fat yield were negative but were close to zero for adjusted yields. Phenotypic correlations for age of kidding with unadjusted milk and fat yields were positive and with adjusted yields were near zero. Genetic correlations for age at kidding with unadjusted yields were positive but with adjusted yields were negative but small. Selection on unadjusted milk yield of first lactation would lead to fewer reproductive successes during the first breeding year and later ages at kidding, but selection on adjusted yields would result in little correlated change in reproductive performance.

Please choose payment method:






(PDF emailed within 0-6 h: $19.90)

Accession: 001108263

Download citation: RISBibTeXText

PMID: 7161435

DOI: 10.3168/jds.S0022-0302(82)82511-3


Related references

Genetic and phenotypic relationships among early measures of growth and milk production in sheep and goats. Cyprus Agricultural Research Institute Technical Bulletin (103): 1-8, 1988

Genetic and phenotypic relationships between milk production and body weight in Chios sheep and Damascus goats. Livestock Production Science 67(1/2): 81-87, 2000

Genetic and phenotypic parameters of milk progesterone levels in the dairy cow and its relationship to production and reproduction. Journal of Dairy Science 70(Suppl. 1): 231, 1987

Estimation of genetic parameters for productive life, reproduction, and milk-production traits in US dairy goats. Journal of Dairy Science 97(4): 2462-2473, 2015

Genetic and phenotypic relationships between certain body measurements and milk production in dairy cattle. Diss. Abstr, 23: 10, 3576-77, 1963

Genetic and phenotypic relationships between certain body measurements and first lactation milk production in dairy cattle. J. Dairy Sci, 46: 1273-1277, 1963

Genetic and phenotypic relationships among fifteen measures of reproduction in dairy cattle. Dissertation Abstracts International, B Sciences and Engineering 45(11): 3424, 1985

Genetic and phenotypic relationships of mature body weight with milk yield in adult Damascus goats. Annual report for 1987: 60-61, 1988

Repeatibility coefficients for some characteristics of milk production and reproduction in dairy goats. Tecnica pecuaria en Mexico: (43) 70-72, 1982

Genetic and phenotypic parameters of milk production in Kutchi goats. Indian Journal of Animal Sciences 74(7): 768-770, 2004

Genetic and phenotypic parameters estimates of production traits and genetic trend of Milk Yield of Saanen goats in Southeast of Brazil. Ars Veterinaria 16(3): 198-203, 2000

Phenotypic relationships between udder and milking characteristics, milk production and California mastitis test in goats. Small Ruminant Research 12(3): 329-337, 1993

Body conformation and milk production in dairy goats part 2 relationships between weight of muscles and body fat food capacity and milk production. Zeitschrift fuer Tierzuechtung und Zuechtungsbiologie 89(3): (1973) 181-190, 1972

Genetic and phenotypic parameters of milk production traits in Marwari goats. Indian Journal of Animal Sciences 71(2): 177-179, 2001

Genetic and environmental relationships between milk yield and kidding interval in dairy goats. Journal of Dairy Science: 1, 370-372, 2010