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Mechanisms for rescue of corpus luteum during pregnancy: gene expression in bovine corpus luteum following intrauterine pulses of prostaglandins E1 and F2α
(Biology of Reproduction, 2017-12-27)
In ruminants, uterine pulses of prostaglandin (PG) F2α characterize luteolysis, while increased PGE2/PGE1 distinguish early pregnancy. This study evaluated intrauterine (IU) infusions of PGF2α and PGE1 pulses on corpus ...
Physiological mechanisms involved in maintaining the corpus luteum during the first two months of pregnancy
(Animal Reproduction, 2018-09)
Maintenance of the corpus luteum (CL) during pregnancy is essential for continuing the elevated circulating progesterone (P4) that is required to maintain pregnancy. The mechanisms that protect the CL during early pregnancy ...
Effect of feeding rumen-protected methionine on productive and reproductive performance of dairy cows
(PLoS ONE, 2017-12-20)
The objectives of this study were to evaluate the effects of daily top-dressing (individually feeding on the top of the total mixed ration) with rumen-protected methionine (RPM) from 30 ± 3 until 126 ± 3 Days in milk on ...
Pivotal periods for pregnancy loss during the first trimester of gestation in lactating dairy cows
Loss of pregnancy can occur at many different stages of gestation and for a variety of causes but clearly produces a negative impact for reproductive and economic performances of dairy herds. This review describes four ...