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INVITED REVIEW: Detection and management of pregnancy loss in the cow herd
(2018-12-01)
Various methods and tools have been developed to detect and manage pregnancy loss in cattle to maximize reproductive efficiency by increasing pregnancy rates and decreasing pregnancy loss. Embryonic mortality constitutes ...
Markers of pregnancy: How early can we detect pregnancies in cattle using pregnancy-associated glycoproteins (PAGs) and microRNAs?
(2016-01-01)
Pregnancy detection has evolved over the last few decades and the importance of early pregnancy detection is critical to minimize the amount of time a cow spends not pregnant. Embryonic mortality (EM) is generally considered ...
New approaches to diagnose and target reproductive failure in cattle
(2020-01-01)
Reproductive failure and pregnancy loss in cattle are some of the largest economic burdens to cattle producers and one of most perplexing factors influencing management decisions. Pregnancy loss may occur at any point ...
Using pregnancy-associated glycoproteins to provide early pregnancy diagnosis in Nelore cows
(Elsevier B.V., 2018-08-01)
Pregnancy-associated glycoproteins (PAG) are expressed in the placenta of ungulate mammals. Ruminants secrete PAGs continuously from embryonic implantation until delivery. In this study, we evaluated the feasibility of ...
The ability to predict pregnancy loss in cattle with ELISAs that detect pregnancy associated glycoproteins is antibody dependent
(2018-03-01)
The concentration of circulating pregnancy associated glycoproteins (PAGs) early in pregnancy may serve as markers to predict late embryonic mortality or fetal mortality in cattle. In this study, pregnancies were established ...
Sire contribution to pregnancy loss and pregnancy-associated glycoprotein production in nelore cows
(2018-02-01)
Pregnancy loss is a major contributing factor to reproductive inefficiency in both the beef and dairy industries. Sires can have a significant influence on the amount of pregnancy loss; however, this relationship is still ...
B-mode Ultrasound and Doppler Mode for Early-stage Pregnancy Diagnosis in Shi-Tzu Bitches
(Univ Fed Rio Grande do Sul, 2013-11-12)
Background: The very first sign to confirm pregnancy in bitches is the gestacional sac detection. In this primary moment, it is very small with only few millimeters. The average time for gestational sacs visualization is ...
Bovine milk sampling efficiency for pregnancy-associated glycoproteins (PAG) detection test
(Spanish Natl Inst Agricultural & Food Research & Technolo, 2016-12-01)
Two experiments were conducted to verify whether the time of day at which a milk sample is collected and the possible carryover in the milking system may affect pregnancy-associated glycoproteins (PAG) levels and, consequently, ...
Associations among milk production and rectal temperature on pregnancy maintenance in lactating recipient dairy cows
(Elsevier B.V., 2011-09-01)
The objective of this study was to evaluate the associations among milk production, rectal temperature, and pregnancy maintenance in lactating recipient dairy cows. Data were collected during an 11-mo period from 463 ...
Associations among milk production and rectal temperature on pregnancy maintenance in lactating recipient dairy cows
(Elsevier B.V., 2011-09-01)
The objective of this study was to evaluate the associations among milk production, rectal temperature, and pregnancy maintenance in lactating recipient dairy cows. Data were collected during an 11-mo period from 463 ...