Circulating progesterone levels in anoestrous sheep with silicone rubber progesterone implants.
D000818:Animals; D003692:Delayed-Action Preparations; D004971:Estrus; D005260:Female; D011247:Pregnancy; D011374:Progesterone / Q000008:administration & dosage* / Q000097:blood*; D011863:Radioimmunoassay; D012756:Sheep; D012826:Silicone Elastomers
D003692:Delayed-Action Preparations; D012826:Silicone Elastomers; D011374:Progesterone