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4.
J Reprod Fertil Suppl ; (23): 291-5, 1975 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-1060792

RESUMO

The injection of 100 mg of progesterone/day from Days 5 to 14 after foaling blocked or delayed oestrus and ovulation in 6/9 mares; the remainder ovulated during treatment without showing oestrus. Urinary oestrogen concentrations in these mares were highest between Days 9 and 15 after foaling but the peak levels were only about half those seen in untreated mares during the post-partum oestrus and ovulation. The injection of 200 mg progesterone/day blocked oestrus and ovulation in two mares but did not depress oestrogen excretion maxima any further. Follicles prevented from developing beyond a cricital stage lost their ability to ovulate after progesterone withdrawal. No significant histological differences were found in endometrial biopsies taken from progesterone-treated and control mares on Days 5, 10 and 15 after foaling. Injection of 100 mg progesterone between Days 1 and 10 after foaling delayed oestrus and ovulation in all six mares. Conception occurred in 8/12 progesterone-treated mares as the result of mating at oestrous periods which were delayed until Days 15 to 28 after foaling.


Assuntos
Cavalos/fisiologia , Período Pós-Parto , Progesterona/farmacologia , Animais , Estrogênios/urina , Estro/efeitos dos fármacos , Feminino , Ovulação/efeitos dos fármacos , Gravidez , Progesterona/administração & dosagem , Fatores de Tempo
11.
Science ; 156(3774): 530-1, 1967 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-4960482

RESUMO

Lesions caused by bluetongue virus infection of the central nervous systems of sheep and mice vary with age of the host. The character of the lesions appears to be influenced by the stage of immunological maturity of the infected animals.


Assuntos
Meningite Viral , Meningoencefalite/congênito , Meningoencefalite/patologia , Viroses/imunologia , Vírus não Classificados/patogenicidade , Animais , Feminino , Feto , Hidrocefalia , Camundongos , Gravidez , Prenhez , Ovinos
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