+ Site Statistics
References:
52,654,530
Abstracts:
29,560,856
PMIDs:
28,072,755
+ Search Articles
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ PDF Full Text
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn

+ Translate
+ Recently Requested

Inheritance of teat number and its relationship to maternal traits in swine



Inheritance of teat number and its relationship to maternal traits in swine



Journal of Animal Science 50(6): 1057-1060



The relationship of teat number to seven measures of female reproduction was evaluated in the University of Nebraska Gene Pool population. Teat number was recorded for 7,513 pigs, ovulation rate for 2,794 gilts and litter size and weight at birth and weaning (42 days) for 789 gilts. Paternal half-sib and full-sib analyses were used to estimate heritabilities for each trait and to estimate the genetic and phenotypic correlations of teat number with the measures of reproduction. The direct response to selection for ovulation rate and the correlated response in teat number were also evaluated from the regressions of line differences (Select-Control) on generation number (10 generations of selection) and cumulative selection differential for ovulation rate. The paternal half-sib heritabililty for teat number was .32, and the paternal half-sib heritabilities for ovulation rate and the litter traits were similar to previous estimates from this population. Most of the genetic and phenotypic correlations with teat number were negative and all were nonsignificant. The realized heritability for ovulation rate was .46 +/- .10. The regression of response in teat number on generation number number was .08 +/- .03 (P < .10). An estimate of .44 was obtained for the realized genetic correlation of teat number with ovulation rate.

(PDF emailed within 1 workday: $29.90)

Accession: 000682836

Download citation: RISBibTeXText

PMID: 7400051



Related references

Inheritance of teat number and relationship of teat number to various maternal traits in swine. Jour Animal Sci 20(4): 876-879, 1961

Inheritance of teat number in swine and the relationship to performance. Acta Agr Scand 13(4): 323-333, 1963

Inheritance of teat number in swine. Indian Journal of Animal Research 31(1): 51-53, 1997

Inheritance of teat number in a consanguineous closed herd of swine. Genetica Iberica 38(3-4): 203-212, 1986

The relationship between teat number and production traits in Romanov ewes. Trudy Kostromskogo Sel' skokhozyaistvennogo Instituta "Karavaevo" (43): 75-78, 1973

Inheritance of teat number and teat inversion in pigs. Animal Production 33(3): 299-304, 1981

Effect of teat number, teat abnormalities and underline length on litter sizes and weights at 21 and 42 days in swine. Journal of Animal Science 57(4): 802-806, 1983

Inheritance of teat number in rabbits. Revista di Coniglicoltura 30(2): 33-35, 1993

Inheritance of teat number in pigs. Sb. nauch. Trud. belorussk. sel'.-khoz. Akad, 69: 7-12; 233, 1970

Inheritance of teat number in the pig part 1. Canadian Journal of Animal Science 57(4): 812, 1977

The inheritance of teat number in the pig and its relationships to fertility. Dissertation. Univ. Halle ?. 64: 411-413, 1951

The inheritance of teat number in relation to hybridisation of pigs. Zhivotnovodstvo (6): 35-37, 1974

Heritability of teat number in swine. Canadian Journal of Animal Science 70(2): 425-430, 1990

Relationship between the fertility of sows and their age and number of teats, and the heritability of teat number in the pig.. Roczn. Nauk rol., B. 80: 71-80, 1962

Correlations between teat number of sows and various performance traits. Trudy Khar' kovskii Sel' skokhozyaistvennyi Institut (213): 105-108, 1975