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Correspondence

Fertility and production in dairy cows

Page 168 | Published online: 23 Feb 2011

References

  • Aehnelt , E. , Konermann , H. and Lotthamer , K. H. 1968 . Correlation between milk yield and fertility in cattle . Zuchthyg. , 3 : 69 – 78 .
  • Dawson , F. L. M. 1968 . Proc. VI int. Congr on Anim. Reprod. (Paris) , 1 : 405 – 405 .
  • Hewett , C. D. 1968 . Survey of the incidence of the repeat breeder cow in Sweden with reference to herd size, season, age, and milk yield . Br. vet. J. , 124 : 342 – 352 .
  • Lotthamer , K.H. and Ahlers , D. 1970 . The period of reproductive rest and supply of nutrients to high-yielding cows . Dt. tieraztl. Wschr. , 77 : 57 – 58 .
  • Morrow , D. A. , Roberts , S. J. , McEntee , K. and Gray , H. G. 1966 . Postpartum ovarian activity and uterine involution in dairy cattle . J. Am. vet. med. Ass. , 149 ( 1 ) : 596 – 609 .
  • Simpson , B. H. 1972 . The relationship between production and infertility in dairy cows . N.Z. vet. J. , 20 : 7 – 9 .

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