IMPROVEMENT OF CONCEPTION RATE AND DIAGNOSIS OF PREGNANCY IN SOWS BY AN ANDROGEN-OESTROGEN-DEPOT PREPARATION

in Reproduction
This paper records observations made on conception in sows treated with a long-acting androgen-oestrogen mixture. The observations were made as part of an experiment originally undertaken to examine the value of treatment with this agent for the diagnosis of pregnancy in pigs. It has previously been observed that administration of a similar mixture was followed by heat in cattle previously showing ovulation in the absence of heat. By the same treatment an ovulatory heat was induced in anoestrous, barren animals, but existing pregnancies were not disturbed (Jöchle, 1964). It seemed probable that the existence of pregnancy would be established if heat failed to occur following administration of the agent.Two milligrammes oestradiol valerate and 5 mg testosterone enanthate were administered to sows 9 to 12 days following service. The experimental group comprised ninety-eight German Landrace

If the inline PDF is not rendering correctly, you can download the PDF file here.

 

     An official journal of

    Society for Reproduction and Fertility

 

Sept 2018 onwards Past Year Past 30 Days
Abstract Views 0 0 0
Full Text Views 70 18 2
PDF Downloads 51 11 0