830 resultados para Animals, Domestic


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Ticks on 140 domestic dogs from both urban and rural areas of Franca region in São Paulo state were identified with 102 dogs from urban areas and 38 from rural areas. Of urban dogs, 27.5% were infested exclusively by Rhipicephalus sanguineus ticks. Of the rural dogs, 36.8% were infested with the following tick species: R. sanguineus, Boophilus microplus, Amblyomma ovale and A. cajennense. Mixed infestations included a dog hosting A. cajennense and A. ovale and another with B. microplus and R. sanguineus. The most intense infestations were detected on urban dogs. Hemolymph tests of these ticks performed to detect rickettsial or Borrelia bacteria yielded negative results.

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We investigated plasma luteinizing hormone (LH) concentration in domestic male cats challenged with Luteinizing Hormone Releasing Hormone Analog (LHRH-A) [des Gly10, (DTrp6)-LHRH ethylamide] that mediates the function of the hypothalamic-piruitary-gonadal axis (HPG). Plasma LH concentrations in cats treated daily with LHRH (10 μg/ 100 μl/kg/day, subcutaneously - sc) for 19 days (LHRH group) and in controls treated with saline (NaCl - 0.9%, same volume - SAL group) were chronically studied. LHRH administration (sc) for 15 days induced a significant fall (P < 0.05) in plasma LH concentrations during the chronic study. After the 15th day of treatment the groups were divided once more into animals treated with LHRH (10 μg/100 μl/kg) or saline (iv), and a time course study (300 min) was performed (acute study). Next, four groups of cats were compared in an acute study involving the sc/iv administration of SAL/SAL, SAL/LHRH, LHRH/SAL, and LHRH/LHRH. The responses of the SAL animals challenged by acute iv administration of LHRH (group SAL/LHRH) were significantly higher (P < 0.01) than those of animals treated with LHRH (sc) (group LHRH/LHRH). LH release was also significantly increased in the latter group (P < 0.05), although the effect was short lasting, being recorded only at the first observation (45 min). An in vitro study with the pituitaries was also performed on day 20. Mean (±SEM) LH concentrations in the culture medium containing pituitaries with LHRH (10-7 M) or saline were determined. In vitro analysis of these pituitaries demonstrated a significantly reduced response (P < 0.05) by animals treated sc with LHRH for 19 days. This study represents a source of data for the domestic cat going beyond its own physiology. Serving as a model, this animal provide important information for the study of reproductive physiology in other members of its family (Felidae), almost all of them threatened with extinction.

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Supplement 1964 (250 p.)

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Investigation of swine plague -- Investigation of southern cattle fever -- Contagious lung plague of cattle -- Miscellaneous -- Correspondence.

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Continuation of Special reports no. 12 and 22. No. 12 entitled: Investigation of diseases of swine [etc.]

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

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Pós-graduação em Medicina Veterinária - FCAV

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Inaug.-diss.-Leipzig, 1913.

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Includes index.

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Mode of access: Internet.