Variables associated with peripartum traits in dairy cows. V. Hormonal profiles associated with retained fetal membranes

Chew, Boon P.; Erb, R.E.; Zamet, Claudie N.; Colenbrander, V.F.; Malven, P.V.; D’Amico, Maria

doi:10.1016/s0093-691x(79)80004-7

Cited by 23 publications

(12 citation statements)

References 16 publications

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“…Chew et al ( 1979a) found lower than normal pre-partum concentrations of progesterone and oestrogens in cows with retained placentas caused by ovariectomy. They have also shown that retained placentas in ovary intact cows are associated with low plasma concentrations of oestradiol-17ß 6 days pre partum (Chew et al, 1979b). Interpretation of this relationship as cause and effect may be misleading because the cows with retained placentas usually have a short gestation and deliver before completion of the normal late term elevation of oestradiol.…”

Section: Resultsmentioning

confidence: 99%

Role of the adrenals in the maintenance of pregnancy in cows

Wendorf¹,

Lawyer²,

First³

1983

Reproduction

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Section: Resultsmentioning

confidence: 99%

Role of the adrenals in the maintenance of pregnancy in cows

Wendorf¹,

Lawyer²,

First³

1983

Reproduction

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“…1999). It has been reported that estrogens play an important role in the maturation process of the placentomes at the end of gestation (Chew et al . 1979a; Grunert et al .…”

Section: Introductionmentioning

confidence: 99%

“…1989). E 2 β probably initiates and perhaps sustains the maturation of cotyledonary tissues (Chew et al . 1979a).…”

Section: Introductionmentioning

confidence: 99%

Relationship of prepartum plasma concentrations of estrone sulfate and estradiol‐17β with the weight of the calf and placental parameters in Holstein–Friesian cows

Shah

Nakao

Kubota

et al. 2007

Animal Science Journal

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The aim was to evaluate the relationship of prepartum plasma estrone sulfate (E1S) and estradiol-17b (E2b) concentrations with the weight of the calf and the placental parameters. Holstein-Friesian cows (n = 33) inseminated artificially with Japanese Black beef bull semen at Hiroshima University Farm in Japan were used for the experiment. Blood samples were taken every day from day 270 of gestation until the day after calving. The plasma samples were analyzed for E1S and E2b by enzyme immunoassay. The calf birth weight was taken immediately after calving. Complete fetal membranes were collected from 19 cattle and the weights of the placental components and the number of cotyledons were recorded. All 33 cattle delivered singleton normal calves. The prepartum plasma E1S concentration was found to correlate significantly (P < 0.01) with the calf birth weight (r = 0.83), total fetal membrane weight (r = 0.81), cotyledonary weight (r = 0.79) and inter-cotyledonary membrane weight (r = 0.64), but it did not correlate significantly with the number of cotyledons, whereas prepartum plasma E2b was not found to correlate significantly with the weight of either the calf or any of the placental components except the number of cotyledons. In conclusion, prepartum plasma E1S, not plasma E2b, was found to correlate significantly with the weight of the calf and the placental components. Figure 2 Relationship of the means of 10 days of prepartum maternal plasma estrone sulfate (E1S) and estradiol-17b (E2b) concentrations (x axis) with (a,b) cotyledonary weight, (c,d) inter-cotyledonary membrane weight and (e,f) number of cotyledons (y axis) in Holstein-Friesian cattle bearing singleton calves, P = < 0.01, (n = 19). RELATION BETWEEN ESTROGEN AND PLACENTA 493

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“…The exact cause of the disease is still not known, and this hampers the search for preventive and therapeuric measures. Extensive research has indicated involvement of several causal factors, such as breed (Erb and Martin, 1978;Watts et al, 1979), year (Roberts, 1971 ), season ( Dyrendahl et al, 1977;Du Bois and Williams, 1980), herd (Roberts, 1971), dystocia (Geyer, 1964;Erb et al, 1981;Thompson et al, 1983), gestation length (Muller and Owens, 1974;Grunert, 1983), age {Muller and Owens, 1974;Dyrendahl et al, 1977;Erb and Martin, 1980), stress (Hindson, 1976;Du Bois and Williams, 1980;ZSldag, 1983), nutrition (Trinder et al, 1973;Morrow et al, 1979;Lotthammer, 1983), and hormone levels (Agthe and Kolm, 1975;Chew et al, 1979;Bosu et al, 1984). Recently, disturbances in the immunological interaction between dam and calf were found by Gunnink (1984a,b,c) and Heuwieser et al (1985).…”

Section: Introductionmentioning

confidence: 99%

Factors related to the etiology of retained placenta in dairy cattle

Joosten

Eldik

Elving

et al. 1987

Animal Reproduction Science

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Joosten, I., Van Eldik, P., Elving, L. and Van der Mey, G.J.W., 1987. Factors related to the etiology of retained placenta in dairy cattle. Anim. Reprod. Sci., Birth records of 369 288 calvings of 160 188 Meuse-Rhine-Yssel cows were analysed to assess the influence of factors associated with retained placenta. Special emphasis was placed on the analysis of a subset containing data on births involving a single live calf and an easy or normal calving process. The overall rate of incidence of retained placenta was 6.6%. The rate increased during the years studied. Abortion, stillbirth and multiple birth caused a marked increase in rate, as did difficult calving, caesarean section and fetotomy. After adjusting for these factors, analysis of the corrected subset showed that the rate of incidence increased with age of the dam. Gestation length prior to retention and birth weight were also associated with higher rates. The combination of short gestation length ( < 270 days) and low birth weight ( < 37 kg) was associated with the highest risk of retained placenta. High birth weights mainly caused higher rates when related to dystocia. The incidence rate in cows delivering a male calf was only slightly higher than in cows delivering a female calf. Cows having retained placenta for a first or second time were three and six times, respectively, as likely to do so again at a subsequent parturition when compared with cows which had not had retained placenta previously.

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Variables associated with peripartum traits in dairy cows. V. Hormonal profiles associated with retained fetal membranes

Cited by 23 publications

References 16 publications

Role of the adrenals in the maintenance of pregnancy in cows

Role of the adrenals in the maintenance of pregnancy in cows

Relationship of prepartum plasma concentrations of estrone sulfate and estradiol‐17β with the weight of the calf and placental parameters in Holstein–Friesian cows

Factors related to the etiology of retained placenta in dairy cattle

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