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Plasma progesterone concentrations from before puberty to after parturition in British Friesian heifers reared on high planes of nutrition and inseminated at their first oestrus

Published online by Cambridge University Press:  02 September 2010

Susan M. Shotton ,
J. H. B. Roy  and
G. S. Pope
Susan M. Shotton
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
J. H. B. Roy
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
G. S. Pope
Affiliation:
National Institute for Research in Dairying, Shinfield, Reading RG2 9AT
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Abstract

Five autumn-born British Friesian heifers were given a high-fat milk substitute ad libitum to 12 weeks of age followed by skim milk ad libitum to 20 weeks of age and were weaned at 26 weeks of age (Treatment 1). Nine heifers were offered the high-fat milk substitute to 8 weeks of age and were weaned at 12 weeks of age (Treatment 2). First oestrus was detected by a study of cervical secretions and plasma progesterone concentrations.

Heifers on Treatment 1 were significantly heavier at 12 weeks of age, but there was no difference between treatments in the mean age or weight of the heifers at first oestrus. Ten heifers conceived at their first or second oestrus (Group A) and four heifers required four to nine inseminations to establish pregnancy (Group B).

Age at first oestrus was inversely related to pre-pubertal progesterone concentrations, which tended to be higher in Group B heifers. All heifers showed a small peak in progesterone concentration before first oestrus, the height being significantly greater in Group B than in group A heifers.

Progesterone concentrations in cycles preceding a successful insemination tended to be lower in the 2 days before oestrus. Progesterone concentrations during pregnancy were significantly lower for the Group B heifers, and were significantly lower for all heifers during the middle 4 months of gestation than during the preceding or succeeding 2 months, with a marked dip at 140 to 160 days of gestation. Post-partum basal progesterone concentrations did not differ from prepubertal concentrations; small peaks of progesterone tended to occur before the first oestrus post partum.

Type
Research Article
Information
Animal Production , Volume 27 , Issue 1 , August 1978 , pp. 89 - 98
Copyright
Copyright © British Society of Animal Science 1978

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References

REFERENCES

Alliston, C. W., Patterson, T. B. and Ulberg, L. C. 1958. Crystallization patterns of cervical mucus as related to estrus in beef cattle. J. Anim. Sci. 17: 322–325.CrossRefGoogle Scholar
Amir, S., Kali, J. and Volcani, R. 1968. Influence of growth rate on reproduction and lactation in dairy cattle. In Growth and Development of Mammals (ed. Lodge, G. A. and Lamming, G. E.), pp. 234–256. Butterworth, London.Google Scholar
Arije, G. R., Wiltbank, J. N. and Hopwood, M. L. 1974. Hormone levels in pre- and post-parturient beef cows. J. Anim. Sci. 39: 338–347.CrossRefGoogle ScholarPubMed
Crichton, J. A., Aitken, J. N. and Boyne, A. W. 1960. The effect of plane of nutrition during rearing on growth, production, reproduction and health of dairy cattle. II. Growth to maturity. Anim. Prod. 2: 45–57.CrossRefGoogle Scholar
Donaldson, L. E., Bassett, J. M. and Thorburn, G. D. 1970. Peripheral plasma progesterone concentration of cows during puberty, oestrous cycles, pregnancy and lactation, and the effects of undernutrition or exogenous oxytocin on progesterone concentration. J. Endocr. 48: 599–614.CrossRefGoogle ScholarPubMed
Edgerton, L. A. and Hafs, H. D. 1973. Serum luteinizing hormone, prolactin, glucocorticoid and progestin in dairy cows from calving to gestation. J. Dairy Sci., 56: 451–458.CrossRefGoogle ScholarPubMed
Fallon, G. R. 1959. Some aspects of oestrus in cattle, with reference to fertility on artificial insemination. 3. Body temperature and the oestrous cycle. Qd J. agric. Sci., 16: 439–447.Google Scholar
Furr, B. J. A. 1973. Radioimmunoassay of progesterone in peripheral plasma of the domestic fowl in various physiological states and in follicular venous plasma. Ada endocr., Copenh. 72: 89–100.Google ScholarPubMed
Henricks, D. K., Dickey, J. F., Hill, J. R. and Johnston, W. E. 1972. Plasma estrogen and progesterone levels after mating and during late pregnancy and postpartum in cows. Endocrinology 90: 1336–1342.CrossRefGoogle ScholarPubMed
Henricks, D. M., Lamond, D. R., Hill, J. R. and Dickey, J. F. 1971. Plasma progesterone concentrations before mating and in early pregnancy in the beef heifer. J. Anim. Sci. 33: 450–454.CrossRefGoogle ScholarPubMed
Midgley, A. R., Niswender, G. D. and Rebar, R. W. 1969. Principles for the assessment of the reliability of radioimmunoassay methods (precision, accuracy, sensitivity, specificity). In Karolinska Symposia on Research Methods in Reproductive Endocrinology, 1st Symposium: Immunoassay of gonadotrophins p. 163. Stockholm.Google Scholar
Morrow, D. A. 1969. Estrous behavior and ovarian activity in prepuberal and postpuberal dairy heifers. J. Dairy Sci. 52: 224–227.CrossRefGoogle ScholarPubMed
Robertson, H. A. 1972. Sequential changes in plasma progesterone in the cow during the estrous cycle, pregnancy, at parturition, and post-partum. Can. J. Anim. Sci. 52: 645–658.CrossRefGoogle Scholar
Sorensen, A. M., Hansel, W., Hough, W. H., Armstrong, D. T., McEntee, K. and Bratton, R. W. 1959. Causes and prevention of reproductive failures in dairy cattle. 1. Influence of underfeeding and overfeeding on growth and development of Holstein heifers. Bull. Cornell Univ. agric. Exp. Stn, No. 936.Google Scholar
Stabenfeldt, G. H., Ewing, L. L. and McDonald, L. E. 1969. Peripheral plasma progesterone levels during the bovine oestrous cycle. J. Reprod. Pert. 19: 433–442.CrossRefGoogle ScholarPubMed
Stabenfeldt, G. H., Osburn, B. I. and Ewing, L. L. 1970. Peripheral plasma progesterone levels in the cow during pregnancy and parturition. Amer. J. Physiol. 218: 571–575.CrossRefGoogle ScholarPubMed