Application of Radioimmunoassay for Livestock FertilityManagement

  title={Application of Radioimmunoassay for Livestock FertilityManagement},
  author={Sukanta Mondal and Sandip R. Sardessai and Vijay Prakash Varshney},
  journal={Biomedical Journal of Scientific and Technical Research},
Assessment of hormones in livestock is widely used to achieve the improvement of both production and reproduction. Conventional ways of (genetic) improvement of livestock are based on selection and crossbreeding programme. These programmes have proved to be very effective, but in general they are time consuming and expensive. Furthermore, heritability estimates are generally very low. For these reasons, much of the current research is directed towards the development of alternative methods of… Expand


Detection of early pregnancy in domestic ruminants.
  • R. Sasser, C. Ruder
  • Medicine, Biology
  • Journal of reproduction and fertility. Supplement
  • 1987
Pregnancy-specific protein B has been developed as a radioimmunoassay and is reliable under laboratory situations for ruminants and can be used after 24 days of gestation in the cow, and application to field testing awaits development. Expand
Measurement of oestrone sulphate in sheep plasma as a possible indicator of pregnancy and the number of viable fetuses present.
This report describes an investigation to determine the correlation between oestrone sulphate levels and the number of viable fetuses. Expand
Importance of hormonal changes during the periparturition period in black Bengal goats
Plasma estradiol was positively correlated with cortisol and T 4 indicating that changes in cortisol andT 4 levels contribute to increase inEstradiol prior to delivery and therefore may directly influence the process of parturition. Expand
Pregnancy-Associated Glycoproteins
The structural chemistry and the biological aspects of Pregnancy-Associated Glycoproteins (PAGs) are described, which indicate that the PAGs are present in all species of the suborder Ruminantia and probably throughout the entire Artiodactyla order of mammals, which includes pigs and their relatives. Expand
Influence of gestation on oestrone sulphate concentration in milk of zebu and crossbred cows and murrah buffaloes
It was concluded that in addition to genetic factors, environmental adaptation could also influence the oestrone sulphate levels in cattle and buffaloes. Expand
Early Pregnancy Diagnosis in Water Buffalo by Early Pregnancy Factor Measurement Using Rosette Inhibition Test
The RIT score for EPF detection can be used as a tool for early detection of pregnancy or embryonic death in buffalos. Expand
Pregnancy-specific protein B and progesterone concentrations in French Alpine goats throughout gestation.
PSB profiles in goats are similar to those found in cows throughout pregnancy and that PSPB RIA may be useful for pregnancy diagnosis or diagnosis of late embryonic mortality. Expand
Comparison of the ability of three radioimmunoassay to detect pregnancy-associated glycoproteins in bovine plasma.
The ability of a RIA test to recognize PAG molecules in the maternal blood can be improved by carefully selecting the antiserum, as indicated by the three individual PAG profiles presented in this study. Expand
Effect of induction of late embryonic mortality on plasma profiles of pregnancy associated glycoprotein 1 in heifers.
The results of this study indicate that a PAG1 assay may provide an alternative method to ultrasonography for determining LEM in the cow. Expand
Evaluation of a bovine pregnancy-associated glycoprotein enzyme-linked immunosorbent assay kit for serological diagnosis of pregnancy in sheep
The bovine ELISA kit can accurately detect pregnancy in sheep 33 days following mating, while PAGs levels from the previous gestation are no longer detected from 21 days post-partum. Expand