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Time of Onset of Post-Partum Luteal Function and Conception in Dairy Cows

Tidspunkten för början av gulkroppens funktion postpartum och för dräktighet hos mjölkkor

Acta Veterinaria Scandinavica volume 32, pages 177–182 (1991)Cite this article

Abstract

The following reproductive parameters were studied in 40 Icelandic dairy cows on 2 farms with free stall and tie stall housing: The time of onset of post-partum luteal activity; the time of first post-partum artificial insemination (AI); the time of conception; conception rate to first post-partum AI; the number of AFs per conception; length of gestation; and the number of days between 2 consecutive calvings. Milk for progesterone analysis was sampled 3 times a week from calving until first AI on farm 1, but every day for 90–100 days from calving on farm 2.

In this study the average onset of luteal function was 21 days post-partum, the cows were inseminated 62 days and conceived 74 days post-partum. Conception rate to first AI was 71 % and number of AI’s per conception was 1.6. Significant differences were not found between the 2 farms.

The reproductive performance of the cows in this study was greater than found in earlier studies of the Icelandic dairy cows and indicate that this animal has reproductive capabilities comparable to high producing foreign dairy cows.

Sammanfattning

Tidspunkten för början av gulkroppens funktion efter kalvning, konstgjord inseminering (AI) och konception undersöktes hos 40 isländska mjölkkor från 2 olika besättningar. Dessutom bestämmdes konceptionsfrekvensen till första AI postpartum; antalet AI per konception; längden av dräktighetstiden och kalvningsintervallet. Mjölkprov för analys av progesteron togs var tredie dag från kalvning till första AI i besättning 1, och varje dag för 90–100 dagar i besättning 2.

Medeltalet för tiden för början av gulkroppens funktion efter partus var 21 dag. Medeltiden för första AI och konception efter partus var 62 respective 74 dagar. Konceptionsfrekvensen till första AI efter partus och antal AI per konception var 71 % respective 1.6. Undersökta reproduktions parametrar visade inte signifikant skillnad mellan besättningar.

Reproduktionsaktiviteten hos kor i denna undersökning var högre än tidigare undersökningar har visat. Resultaten visar att den islänska mjölkkon har reproduktionskapacitet som liknar de högt-producerande mjölkkornas reproduktionskapacitet i Skandinavien.

References

  • Bulman DC, Lamming GE: Milk progesterone levels in relation to conception, repeat breeding and factors influencing acyclicity in dairy cows. J. Reprod. Fert. 1978, 54, 447–458.

    Article  CAS  Google Scholar 

  • Butler WR, Smith RD: Interrelationships between energy balance and post-partum reproductive function in dairy cattle. J. Dairy Sci. 1989, 72, 767–783.

    Article  CAS  Google Scholar 

  • Carroll DJ, Barton BA, Anderson GW, Smith RD: Influence of protein intake and feeding strategy on reproductive performance of dairy cows. J. Dairy Sci. 1988, 71, 3470–3481.

    Article  CAS  Google Scholar 

  • Claus R, Karg H, Zwiauer I, Butler I von, Pirchner F, Rattenberger E: Analysis of factors influencing reproductive performance of the dairy cow by progesterone assay in milk-fat. Brit. vet. J. 1983, 139, 29–37.

    Article  CAS  Google Scholar 

  • Eldon J, Olafsson Th, Thorsteinsson Th: A survey of the post-partum reproductive performance of dairy cows with fertility problems in Southern Iceland. Acta vet. scand. 1985, 26, 431–441.

    Article  CAS  Google Scholar 

  • Eldon J, Olafsson Th: The post-partum reproductive status of dairy cows in two areas in Iceland. Acta vet. scand. 1986, 27, 421–439.

    Article  CAS  Google Scholar 

  • Eldon J, Olafsson Th: Assessment of the postpartum reproductive performance of the Icelandic dairy cow during a 3 year period. Acta vet. scand. 1988, 29, 385–392.

    Article  CAS  Google Scholar 

  • Haraszti J, Huszenicza G, Molnár L, Solti L, Csernus V: Postpartal ovarian activity of healthy cows and affected subclinical metabolic disorder. Anim. Reprod. Sci. 1985, 9, 125–136.

    Article  Google Scholar 

  • Haresign W, Foxcroft GR, Lamming GE: Control of ovulation in farm animals. J. Reprod. Fert. 1983, 69, 383–395.

    Article  CAS  Google Scholar 

  • Heinonen K, Savolainen E, Tuovinen V, Miettinen P, Alanko M: Post-partum reproductive function in Finnish Ayrshire and Friesian cows after three subsequent parturitions. Acta vet. scand. 1988, 29, 231–238.

    Article  CAS  Google Scholar 

  • Howard HJ, Aalseth EP, Adams GD, Bush LJ, McNew RW, Dawson LJ: Influence of dietary protein on reproductive performance of dairy cows. J. Dairy Sci. 1987, 70, 1563–1571.

    Article  CAS  Google Scholar 

  • Jainudeen MR, Hafez ESE: Gestation, prenatal physiology and parturition. In: E. S. E. Hafez (Editor), Reproduction in farm animals. Lea & Febiger, Philadelphia 1980, pp. 247–303.

  • Jónmundsson JV: Agricultural Society of Iceland. Baendahöllinni, Reykjavik, Iceland.

  • King GJ, Hurnik JF, Robertson HA: Ovarian function and estrus in dairy cows during early lactation. J. Anim. Sci. 1976, 42, 688–692.

    Article  CAS  Google Scholar 

  • Larsson K, Janson L, Berglund B, Edqvist L-E, Kindahl H: Post-partum reproductive performance in dairy cows. I. influence of animal breed and parity. Acta vet. scand. 1984, 25, 445–461.

    Article  CAS  Google Scholar 

  • Morrow DA, Roberts SJ, McEntee K: Postpartum ovarian activity and involution of the uterus and cervix in dairy cattle. I. Ovarian activity. Cornell Vet. 1969, 59, 173–190.

    CAS  PubMed  Google Scholar 

  • Nieuwhof GJ, Powell RL, Norman HD: Ages at calving and calving intervals for dairy cattle in the United States. J. Dairy Sci. 1989, 72, 685–692.

    Article  Google Scholar 

  • Slagsvold P: Generell fóringslære. (The science of feed and feeding). Norges Veterinærhøgskole, Institutt for husdyrbruk og genetikk, Oslo 1973, 116 pp.

  • Sokal RR, Rohlf FJ: Biometry, 2nd ed. W. H. Freemann and Company, New York 1981, 859 pp.

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  1. Institute for Experimental Pathology, University of Iceland, P. O. Box 8540, IS-128, Keldur, Reykjavik, Iceland

    Jón Eldon

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Eldon, J. Time of Onset of Post-Partum Luteal Function and Conception in Dairy Cows. Acta Vet Scand 32, 177–182 (1991). https://doi.org/10.1186/BF03546978

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Acta Veterinaria Scandinavica

ISSN: 1751-0147