Breeding Baboons for Laboratory Use

A nonsurgical embryo recovery procedure, developed to allow the economical acquisition of cleavage stage baboon embryos, has been successfully used for 4 years. With this technique, 498 eggs have been recovered from 979 uterine flushes (50.9%) on 71 baboons. Of 467 eggs recovered from mated baboons, 290 (62.1%) were fertilized. Papio anubis females provided a higher percentage of fertilized eggs (75.3%) than did Papio hamadryas (47.8%) or Papio cynocephalus (44.3%) females following exposure to males during estrus, although sexual preference may be responsible for the reduced fertilization rate in the I? cynocephalus females. Recovery rates from individual baboons ranged from 0% (n = 11) to between 66% and 93% for ten baboons from each of which 12-33 eggs have been recovered. Fertilized eggs were at the two-cell (n = 23) to blastocyst (n = 53) stage at recovery 1-6 days postdeturgescence (PD) of the sex skin, with morulae (n = 84) being the most frequent cell stage recovered (30%). The optimum time for performing the procedure was the third day PD, when 113 (40%) embryos were recovered. The abilities of baboons to become pregnant and to provide fertilized embryos were significantly related (P < 0.0051, allowing the embryo recovery technique to be used as a screening procedure for evaluating baboon fertility.

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The breeding of captive wild species by artificial methods

Seager

1983

Zoo Biology

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The growing interest in many zoos, wildlife parks and game ranches in the captive breeding of wild species has brought about much interest and research in developing and testing artificial methods of breeding. Much of this work has been concentrated in endangered species. The author outlines the relevance and utilization of such techniques and reviews successful attempts in this area and elaborates on future potential ones. A brief review is given of successful artificial methods of breeding domestic species and how this may be applied to nondomestic ones. Areas that are covered are semen collection, semen freezing, induction of estrus, artificial insemination, embryo transfer including interspecies transfer and embryo surgery. It is acknowledged that it is highly unlikely that an artificial program could save a species from extinction but such methods could greatly assist a comprehensive natural breeding program.

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Breeding Baboons for Laboratory Use

Cited by 6 publications

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Baboon Nursery Rearing Practices and Comparisons between Nursery-Reared and Mother-Reared Individuals

Baboon Nursery Rearing Practices and Comparisons between Nursery-Reared and Mother-Reared Individuals

A 4‐year summary of the nonsurgical recovery of baboon embryos: A report on 498 eggs

The breeding of captive wild species by artificial methods

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