Twin Pregnancies in Dairy Cattle: Observations in a Large Herd of Holstein-Friesian Dairy Cows
MetadataShow full item record
Multiple pregnancies have devastating consequences on the herd economy of dairy cattle. This observational study examines incidence patterns based on data from the ultrasonographic examination of 1130 multiple pregnancies in cows in their third lactation or more carrying twins (98.8%), triplets (1.1%), or quadruplets (0.08%), and 3160 of their peers carrying singletons. Cows became pregnant following a spontaneous estrus with no previous hormone treatments. Irrespective of a significant decrease (p < 0.0001) in the conception rate (28–34 days post-insemination) during the warm period of the year, the multiple pregnancy rate was similar for both warm (26.5%) and cool (26.3%) periods. The incidence of unilateral multiple pregnancies (all embryos in the same uterine horn) was higher than that of bilateral pregnancies (at least one embryo in each uterine horn): 54.4% versus 45.6% (p < 0.0001). This difference rose to 17% during the warm season (p = 0.03). Pregnancy was monitored in unilateral multiple pregnancies until abortion or parturition (n = 615). In the warm period, the parturition rate was 43% compared to 61% recorded in the cool period (p < 0.0001). Thus, a warm climate is the main factor compromising the fate of multiple pregnancies. Some clinical suggestions are provided.
Is part ofAnimals, 2020, vol. 10, núm. 11, article 2165
European research projects
Except where otherwise noted, this item's license is described as cc-by, (c) López Gatius, Fernando et al., 2020
Showing items related by title, author, creator and subject.
Relationship between heat stress during the peri-implantation period and early fetal loss in dairy cattle García Ispierto, Irina; López Gatius, Fernando; Santolaria Blasco, Pilar; Yániz Pérez de Albéniz, Jesús; Nogareda, Carmina; López-Béjar, M.; De Rensis, F. (Elsevier, 2006)The aim of the present study was to establish whether temperature-humidity index values, as a measure of heat comfort, from Days 1 to 40 of gestation could be associated with the pregnancy loss rate in high producing dairy ...
Influencia del microclima en una explotación de vacas lecheras de alta producción sobre la pérdida fetal Santolaria Blasco, Pilar; López Gatius, Fernando; García Ispierto, Irina; Bech Sàbat, Gregori; Serrano, Beatriz; Yániz, J. L. (Asociación Interprofesional para el Desarrollo Agrario, 2009)The aim of this study was to determine possible relationships between real farm climate variables, recorded from day 0 to day 40 post-artificial insemination on a 30 min basis, and early fetal loss in high producing dairy ...
Manual Rupture Versus Transvaginal Ultrasound-guided Aspiration of Allanto-amniotic Fluid in Multiple Pregnancies: A Clinical Approach to Embryo Reduction in Dairy Cattle Andreu Vazquez, Cristina; García Ispierto, Irina; López Gatius, Fernando (Society for Reproduction and Development, 2012)To avoid the problems associated with twinning in dairy cattle, one of the embryos may be eliminated. This study compares the effect on pregnancy maintenance of two embryo reduction techniques, manual rupture (MR) and ...