geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Reproductive performance of Friesian mares after retained placenta and manual removal of the placenta


, : Reproductive performance of Friesian mares after retained placenta and manual removal of the placenta. Theriogenology 57(2): 923-930

Because the incidence of retained placenta in Friesian mares is estimated to be high, and no reports have been published on the reproductive performance of Friesian mares after retained placenta, we studied postpartum reproductive performance in Friesian brood mares with (n = 54) and without (n = 50) retained placenta. We defined a retained placenta as the failure to expel all fetal membranes within 3 h after the delivery of a foal. We subdivided the group of mares with retained placenta into mares in which the placenta had been removed manually (n = 30) and mares in which it had not (n = 24). Within each group, we compared reproductive performance after breeding in the foal heat and breeding in a subsequent heat. We also recorded the age of the mares, number of mares treated with antibiotics after insemination, and number of mares treated with prostaglandins. The interval between delivery and conception, efficacy rate (number of served cycles divided by the number of mares that had a positive pregnancy diagnosis), seasonal pregnancy rate, pregnancy rate after first insemination, pregnancy loss rate, and foaling rate did not differ between mares with and without retained placenta or between mares with and without manual removal of the retained placenta. Within each group, the pregnancy rate after first insemination did not differ between breeding for the first time in the foal heat and breeding for the first time in a subsequent heat. We concluded that reproductive performance did not differ between (1) Friesian mares with and without retained placenta and (2) Friesian mares with and without manual removal of the placenta. With regard to reproductive performance, retained placenta and manual removal of the placenta are not valid reasons to avoid foal heat breeding in Friesian mares.

US$19.90

PMID: 11991394

DOI: 10.1016/s0093-691x(01)00691-4


Other references

Ounap, E., 2005: Xestia ditrapezium Lepidoptera, Noctuidae recorded in Estonia Xestia ditrapezium Lepidoptera, Noctuidae joudis Eestisse. Lepinfo. september; 16: 8-9

Heathers, J.A.J., 2014: Smartphone-enabled pulse rate variability: an alternative methodology for the collection of heart rate variability in psychophysiological research. Heart rate variability (HRV) is widely used to assess autonomic nervous system (ANS) function. It is traditionally collected from a dedicated laboratory electrocardiograph (ECG). This presents a barrier to collecting the large samples necessary to...

Burckle L.H., 1977: Late Cenozoic diatom biostratigraphy of North Pacific DSDP cores. Journal of Paleontology 51(2, Suppl

Kutoh, E.; Boss, O.; Levasseur, F.; Giacobino, J.P., 1998: Quantification of the full length leptin receptor (OB-Rb) in human brown and white adipose tissue. Levels of expression of the leptin receptor (OB-R) splice variants have been studied in human omental white and perirenal brown adipose tissues by reverse transcription-PCR. The level of mRNA expression of the full length form (OB-Rb) was approxim...

Carvalho I.G., 1980: Two quartz generations in the quartz-eye bearing porphyroidal rocks of the Western mines district, Vancouver, B.C. Pages 341 1980

Horn, K.H.; Teichmann, B.; Schramm, T.; Nischan, P., 1988: Investigation of dichlorvos ddvp ii. testing of dichlorvos for carcinogenic activity in rats. The question has remained open, whether or not the pesticide Dichlorvos (DDVP) should be classified as a carcinogen. The results of a long-term experiment of testing DDVP in male and female C57Bl/6/Bln mice, recently published by us in this journa...

HsuFuHsing; LuChinHsin; HongKuoYuan, 2008: Residual effects of cattle and hog manures on forage yield and quality of napiergrass and soil fertility after receiving long term of manure application. The residual effects of cattle and hog manures on forage yield and quality of napier grass (<i>Pennisetum purpureum</i>) and soil fertility after receiving long term manure application were determined. An experimental field of napier g...

Chen, L.; Kaßmann, M.; Sendeski, M.; Tsvetkov, D.; Marko, L.; Michalick, L.; Riehle, M.; Liedtke, W.B.; Kuebler, W.M.; Harteneck, C.; Tepel, M.; Patzak, A.; Gollasch, M., 2015: Functional transient receptor potential vanilloid 1 and transient receptor potential vanilloid 4 channels along different segments of the renal vasculature. Transient receptor potential vanilloid 1 (TRPV1) and vanilloid 4 (TRPV4) cation channels have been recently identified to promote endothelium-dependent relaxation of mouse mesenteric arteries. However, the role of TRPV1 and TRPV4 in the renal vasc...

von Kriegstein, K.; Griffiths, T.D.; Thompson, S.K.; McAlpine, D., 2008: Responses to interaural time delay in human cortex. Humans use differences in the timing of sounds at the two ears to determine the location of a sound source. Various models have been posited for the neural representation of these interaural time differences (ITDs). These models make opposing pred...

Cheney C.P.; Boedeker E.C.; Diodato M.K.; Formal S.B., 1979: Species specificity of in vitro escherichia coli adherence to host cells and its correlation with infectivity and in vivo colonization. Gastroenterology 76(5 PART 2): 1112