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Author |
Brown, J.L.; Wasser, S.K.; Wildt, D.E.; Graham, L.H. |
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Title |
Comparative Aspects of Steroid Hormone Metabolism and Ovarian Activity in Felids, Measured Noninvasively in Feces |
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Journal Article |
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Year |
1994 |
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Biol Reprod |
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51 |
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4 |
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776-786 |
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Animal; Carbon; Radioisotopes; Carnivora; Cats; Chromatography; High; Pressure; Liquid; Comparative Study; Estradiol; metabolism; Estrone; feces; chemistry; Female; Ovary; physiology; Pregnancy; Progesterone; Pseudopregnancy; Support; Non-U.S.Gov't; browse; non; government; gov't; us; 170 |
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Abstract |
Noninvasive fecal assays were used to study steroid metabolism and ovarian activity in several felid species. Using the domestic cat (Felis catus) as model, the excretory products of injected [14C]estradiol (E2) and [14C]progesterone (P4) were determined. Within 2 days, 97.0 +/- 0.6% and 96.7 +/- 0.5% of recovered E2 and P4 radioactivity, respectively, was found in feces. E2 was excreted as unconjugated estradiol and estrone (40%) and as a non-enzyme- hydrolyzable conjugate (60%). P4 was excreted primarily as non-enzyme- hydrolyzable, conjugated metabolites (78%) and as unconjugated pregnenolone epimers. A simple method for extracting fecal steroid metabolites optimized extraction efficiencies of the E2 and P4 excretion products (90.1 +/- 0.8% and 87.2 +/- 1.4%, respectively). Analysis of HPLC fractions of extracted fecal samples from the radiolabel-injected domestic cats revealed that E2 immunoreactivity coincided primarily with the unconjugated metabolized [14C]E2 peak, whereas progestogen immunoreactivity coincided with a single conjugated epimer and multiple unconjugated pregnenolone epimers. After HPLC separation, similar immunoreactive E2 and P4 metabolite profiles were observed in the leopard cat (F. bengalensis), cheetah (Acinonyx jubatus), clouded leopard (Neofelis nebulosa), and snow leopard (Panthera uncia). Longitudinal analyses demonstrated that changes in fecal E2 and P4 metabolite concentrations reflected natural or artificially induced ovarian activity. For example, severalfold increases in E2 excretion were associated with overt estrus or exogenous gonadotropin treatment, and elevated fecal P4 metabolite concentrations occurred during pregnant and nonpregnant (pseudopregnant) luteal phases. Although overall concentrations were similar, the duration of elevated fecal P4 metabolites during pseudopregnancy was approximately half that observed during pregnancy. In summary, steroid metabolism mechanisms appear to be conserved among these physically diverse, taxonomically related species. Results indicate that this hormone-monitoring approach will be extremely useful for elucidating the hormonal regulatory mechanism associated with the reproductive cycle, pregnancy, and parturition of intractable and endangered felid species. |
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0006-3363 |
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Document Type: eng |
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SLN @ rana @ 251 |
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198 |
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Hochstrasser, K.; Wachter, E.; Reisinger, P.W.; Greim, M.; Albrecht, G.J.; Gebhard, W. |
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Title |
Amino acid sequences of mammalian kazal-type proteinase inhibitors from salivary glands |
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Journal Article |
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Year |
1993 |
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Comp Biochem Physiol B |
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106 |
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1 |
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103-108 |
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Amino; Acid; Sequence; Animal; Carnivora; Comparative; study; Cysteine; chemistry; Glycosylation; Mink; Molecular; Data; Protease; Inhibitors; Salivary; Proteins; species; Specificity; Submandibular; Gland; Trypsin; Inhibitor; Kazal; Pancreatic; browse; 200 |
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Abstract |
1. The amino acid sequences of bikazins (the double-headed Kazal-type proteinase inhibitors from submandibular glands) isolated from the snow leopard (Unica unica), the European mink (Mustela lutreola), and the European pine marten (Martes martes) were determined. 2. N-terminal domains of bikazins are characterized by a cysteine residue spacing that differs from that of C-terminal domains of bikazins and other Kazal-type proteinase inhibitor domains. 3. N-terminal sequences of bikazins seem to be specific for, and highly conserved within, each Carnivora family. |
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0305-0491 |
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Document Type: eng |
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SLN @ rana @ 202 |
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385 |
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De Groot, H.; Van Swieten, P.; Aalberse, R.C. |
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Evidence for a Fel d I-like molecule in the “big cats” (Felidae species) |
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1990 |
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J Allergy Clin Immunol |
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86 |
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1 |
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107-116 |
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Adolescence; Adult; Allergens; immunology; Animal; Antibodies; Monoclonal; diagnostic; use; Antibody; Specificity; Carnivora; Cats; Comparative; study; Cross; Reactions; Hair; Histamine; Release; Human; IgE; analysis; IgG; Middle; Age; Radioallergosorbent; Test; methods; Support; Non-U.S.Gov't; browse; us; government; gov't; 240 |
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In this study, we investigated the cross-reactivity pattern of IgE and IgG4 antibodies to the major feline allergen, Fel d I. We studied the IgE and IgG4 response of 11 cat-allergic patients against Fel d I-like structures in eight members of the Felidae family: ocelot, puma, serval, siberian tiger, lion, jaguar, snow leopard, and caracal. Hair from these “big cats” was collected, extracted, and used in a RAST system and histamine-release test. By means of a RAST-inhibition assay with affinity-purified Fel d I from cat dander, it was established that, in the Felidae species, a Fel d I equivalent is present that reacts with IgE and IgG4 antibodies. We found that all patients had cross-reacting IgE antibodies to seven of the Felidae tested; no IgE antibodies reactive with the caracal were found. Eight of 10 patients with IgG4 antibodies directed to cat dander also had IgG4 antibodies directed to several Felidae species, including the caracal. However, the correlation between the IgE and the IgG4 antibody specificity was low, indicating that, in the case of Fel d I IgE and IgG4, antibodies do not necessarily have the same specificity. |
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0091-6749 |
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Document Type: eng |
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SLN @ rana @ 157 |
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233 |
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Sloane, A.; Kelly, C.; McDavitt, S.; Marples, N. |
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Title |
Big cats in captivity: a quantitative analysis of enrichment |
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1998 |
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Adv.Etho |
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33 |
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43 |
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abnormal-behavior; behavior; captive-animal-care; endangered; threatened-species; zoos; enrichment; abnormal; captive; Animal; care; threatened; species; browse; 1280; study; big; big cats; Cats; cat; zoo; effects; Lions; lion; jaguar; snow; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; leopard; behaviour; using; activity; activities; change; presence; enclosures; range; scent; cage; horse; hides; management |
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Studies on three species of big cats at Dublin Zoo have led to firm conclusions about the effects of certain forms of enrichment, some of which will be presented here. Lions, jaguars, and snow leopards were studied over two years and their behaviours quantified using focal animal sampling during selected hours during daylight. By comparison of these activity budgets with and without the enrichments being present, it was possible to identify the exact behavioural changes caused by each enrichment method, and to quantify these changes. In this contribution we present results showing that the presence of a platform in both lion and jaguar enclosures dramatically reduced stereotypic pacing behaviour. We will demonstrate that the effects of short term enrichment devices may have a wide range of effects on behaviours which outlast the presence of the stimulus. For instance scents added to the cage, or food/play items such as horse hides, hidden fish or ice-blocks often reduce pacing and increase resting later in the day, even after the cats have ceased using the enrichment items. This reduction in pacing and increase in resting time often meant that the amount of the enclosure used per hour was actually reduced with the presence of new stimuli, as result opposite to what might have been expected. The results of these studies will be discussed in relation to effective animal management. |
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WILDLIFE REVIEW ABSTRACTS (“Contributions to the International Symposium on Physiology and Ethology of Wild and Zoo Animals, Berlin, Germany, 7-10 October 1998”; Hofer, Heribert; Pitra, Christian; Hofmann, Reinhold R., editors). |
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SLN @ rana @ 349 |
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897 |
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Author |
Ming, M. |
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Title |
Study on Snow Leopards in Xinjiang (Training Guide) |
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Miscellaneous |
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2004 |
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1-25 |
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5360; study; snow; snow leopards; snow leopard; snow-leopards; snow-leopard; leopards; leopard; Xinjiang |
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Training Guide supported by ISLT and XCF. In Chinese. |
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SLN @ rana @ 381 |
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680 |
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