Hostname: page-component-7479d7b7d-m9pkr Total loading time: 0 Render date: 2024-07-08T06:05:35.487Z Has data issue: false hasContentIssue false
  • English
  • Français

The frequency of cows served twice which remain pregnant to first service: a study of results from parentage tests

Published online by Cambridge University Press:  01 October 1962

J. Rendel ,
J. Bouw  and
D. O. Schmid
J. Rendel
Affiliation:
Institute of Animal Breeding, Royal Agricultural College, Uppsala, Sweden
J. Bouw
Affiliation:
Stichting Bloedgroepen Onderzoek, Wageningen, The Netherlands
D. O. Schmid
Affiliation:
Institut für Blutgruppenforschmg der Tierzuchtforschung e.V. München, Germany
Get access

Extract

In 1,347 parentage cases in cattle it was determined whether conception resulted from the first or second service. Among cows served twice within short intervals (1–11 days) about 20% remained pregnant from the previous service. At an interval of one day this proportion amounted to 37%.

About three-quarters of the cows had service intervals of 18–24 days. In most of these the calving took place between the expected dates according to the two services. In 6% of the cases with intervals of 18–24 days pregnancy resulted from the first service. It was estimated that about 1% of all cows mated twice within these intervals had become pregnant from the first service.

Rules are suggested for when blood grouping should be required for registration of pedigrees in the herd book.

Type
Research Article
Information
Animal Production , Volume 4 , Issue 3 , October 1962 , pp. 359 - 367
Copyright
Copyright © British Society of Animal Science 1962

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Berge, S., 1942. Fruchtbarkeitsverhältnisse beim roten hornlosen Ostlandrind. Z. Tierz. ZüchtBiol., 52: 127.CrossRefGoogle Scholar
Burgkart, M., 1960. Variationsstätistische Untersuchungen der Trächtigkeitsdauer beim Rind. Arbeiten der Deutsche Landw. Gesellschaft, Bd. 65, 42 pp.Google Scholar
Burgkart, M., & Schmid, D., 1961. Die Variationsbreite der Trächtigkeitsdauer beim Deutschen Fleckvieh und ihre Bestätigung durch die Blutgruppenuntersuchung. Züchtungskunde, 33: 787.Google Scholar
Donald, H. P., 1943. Heat during pregnancy in dairy cows. Vet. Rec, 55: 297.Google Scholar
Erb, R. E., & Morrison, R. A., 1958. Estrus after conception in a herd of Holstein-Friesian cattle. J. Dairy Sci., 41: 267.CrossRefGoogle Scholar
Jafar, S. M., Chapman, A. B., & Casida, L. E., 1950. Causes of variation in length of gestation in dairy cattle. J. Anim. Sci., 9: 593.CrossRefGoogle ScholarPubMed
Mirskaia, L. J., & Smirnov-Ugrhumov, D., 1941. [Heat in cows during pregnancy.] Sovetsk. Zooteh., No. 4: 80. Anim. Breed. Abstr., 11: 23, 1943. (In Russian).Google Scholar
Rendel, J., 1958. Studies of cattle blood groups. II. Parentage tests. Acta agric. Scand., 8: 131.CrossRefGoogle Scholar
Rendel, J., 1959. Factors influencing gestation length in Swedish breeds of cattle. Z. Tierz. ZüchtBiol., 73: 117.CrossRefGoogle Scholar
Rendel, J., & Gahne, B., 1961. Parentage tests in cattle using erythrocyte antigens and serum transferrins. Anim. Prod., 3: 307.CrossRefGoogle Scholar
Tanabe, T. Y., & Almquist, J. O., 1960. The nature of subfertility in dairy heifers. I. Estrus and estrual cycles. Bull. Perm, agric. Expt. Sta. no. 672.Google Scholar
Trimberger, G. W., 1948. Breeding efficiency in dairy cattle from artificial insemination at various intervals before and after ovulation. Bull. Neb. agric. Expt. Sta. no. 153.Google Scholar
Williams, S. M., Garrigus, U. S., Norton, H. W., & Nalbandov, A. V., 1956. The occurrence of estrus in pregnant ewes. J. Anim. Sci., 15: 978.CrossRefGoogle Scholar