Inbreeding, outbreeding, infant growth, and size dimorphism in captive Indian rhinoceros (Rhinoceros unicornis)
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چکیده
منابع مشابه
Studies on digestive physiology and feed digestibilities in captive Indian rhinoceros (Rhinoceros unicornis).
We performed intake, digestibility and ingesta passage studies in 11 Indian rhinoceroses (Rhinoceros unicornis) from four zoological institutions, using total faecal collection for the quantification of faecal output. The regularly fed zoo ration of roughage and concentrates (ration RC) and a roughage-only ration (ration R) were used; the roughage source differed between the facilities and comp...
متن کاملSurgical management of rectal prolapse in an Indian rhinoceros (Rhinoceros unicornis).
An acute rectal mucosal prolapse in a 26-yr-old Indian rhinoceros (Rhinoceros unicornis) was repaired surgically by mucosal resection. Two days postoperatively, suture line dehiscence accompanied by substantial hemorrhage was managed by ligation and hemostasis during a second immobilization. Medical management with nonsteroidal anti-inflammatory drugs and diuretics reduced the mucosal edema and...
متن کاملFollicular, endocrine and behavioural dynamics of the Indian rhinoceros (Rhinoceros unicornis) oestrous cycle.
Longitudinal ultrasound, behaviour and endocrine evaluations were conducted, over 14 to 18 months, in two young female Indian rhinoceroses (Rhinoceros unicornis) to characterize the oestrous cycle. Both females showed the same pattern of follicular development producing a large follicle (10-12 cm diameter) on one of the ovaries that persisted for 8.5 +/- 4.68 days before spontaneously ovulating...
متن کاملRepeated chemical immobilization of a captive greater one-horned rhinoceros (Rhinoceros unicornis), using combinations of etorphine, detomidine, and ketamine.
An adult, 23 yr-old, male greater one-horned rhinoceros (Rhinoceros unicornis) was repeatedly immobilized with combinations of etorphine, detomidine, and ketamine to provide medical and surgical care to chronic, bilateral, soft tissue lesions on the hind feet and to collect semen by electroejaculation. The rhinoceros was successfully immobilized on 24 occasions over a 55 mo period at approximat...
متن کاملFecal progesterone, estrogen, and androgen metabolites for noninvasive monitoring of reproductive function in the female Indian rhinoceros, Rhinoceros unicornis.
This investigation aimed to establish noninvasive methods for endocrine monitoring of estrous cycles and pregnancy in the Indian rhinoceros. Fecal samples were collected 1-3 times per week from nonpregnant and pregnant captive females (n = 7). Enzyme immunoassays for fecal progesterone, androgen, and estrogen metabolites, respectively, were tested for their ability to determine follicular and l...
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ژورنال
عنوان ژورنال: Canadian Journal of Zoology
سال: 2002
ISSN: 0008-4301,1480-3283
DOI: 10.1139/z02-183