Hybridization of Père David's deer (<i>Elaphurus davidianus</i>) and red deer (<i>Cervus elaphus</i>) by artificial insemination

Asher, G. W.; Adam, J. L.; Otway, W.; Bowmar, P.; Reenan, G. van; Mackintosh, C.G.; Dratch, Peter

doi:10.1111/j.1469-7998.1988.tb04894.x

Cited by 47 publications

(14 citation statements)

References 4 publications

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“…In addition, Berlinguer et al (2005) reported Mouflon spermatozoa were efficiently cryopreserved, without reduction in viability, confirmed by both in vivo and in vitro fertility trials. In Fallow deer, a complete assessment of quality of fresh semen was not possible; high rates of fertility in several deer species using frozen semen have been reported (Asher et al 1988;Jacobson et al 1989;Asher et al 2000), even using low dosages of semen. Sperm collection from Blue wildebeest was performed in difficult conditions, as testicles were removed post mortem and they had to pass through some temperature changes; however, proportion of motile cells was acceptable (70%).…”

Section: Discussionmentioning

confidence: 96%

Capacitation status of frozen–thawed spermatozoa from wild ruminant species

et al. 2008

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Semen from Barbary sheep (Ammotragus lervia), Bighorn sheep (Ovis canadensis), Mouflon sheep (Ovis musimon), Fallow deer (Dama dama), collected by electroejaculation, and semen from Wildebeest antelope (Connochaetes taurinus), collected post mortem, were frozen using a standardized technique and a commercial freezing medium (Triladyl). Sperm quality was assessed by measuring their capacitation status (chlortetracycline assay) in addition to classic assessment: motility, viability (plasma membrane integrity), and acrosome integrity. Sperm cryosurvival measured in terms of recovery (from the initial, pre-freeze values) of motility, viability, and acrosome integrity was relatively high in most species. However, proportion of premature-capacitated spermatozoa (B+AR patterns) increased many times in relation to that of fresh semen: from 8% to 78% in Barbary sheep; from 27% to 61% in Bighorn sheep; and from 12% to 68% in Mouflon sheep. The use of a standardized technique for freezing of spermatozoa from wild ruminant species produced, in most of the cases, acceptable results. This approach may be extensively used to carry out sperm cryopreservation in field conditions. Chlortetracycline assay allowed identifying the same fluorescent patterns observed in spermatozoa from domestic animals and produced additional information on sperm cryosurvival. That is, it revealed those cells that survive freeze-thawing and are potentially fertile: noncapacitated (F pattern) and capacitated acrosome-intact spermatozoa (B pattern).

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Section: Discussionmentioning

confidence: 96%

Capacitation status of frozen–thawed spermatozoa from wild ruminant species

et al. 2008

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“…In fact, within the limitation of small sample sizes, PMSG appeared to increase the variance. PMSG, even at such low dose rates, increases the inci¬ dence of multiple ovulation and multiple births (Fisher et al, 1986(Fisher et al, , 1989Asher et al, 1988a;Fennessy et al, 1990b). In fallow deer, this has proved counter-productive in artificial insemination programmes Jabbour et al, 1991), although there is little evidence of major production losses through reduced fertility, increased embryonic loss and increased perinatal mor¬ tality in red deer (Fennessy et al, 1990b).…”

Section: Incidence Of Oestrus and Ovulationmentioning

confidence: 99%

“…These techniques have been applied to farmed cervid species, including red deer (Asher et al, 1988a;Fennessy et al, 1989aFennessy et al, , 1990a and fallow deer (Dama dama; Asher et al, 1988bAsher et al, , 1990aJabbour et al, 1990) with variable degrees of success . The effectiveness of both artificial insemination and embryo transfer programmes depends on efficient techniques of oestrus and ovulation control, particularly in relation to synchronization of oestrus and ovulation and induction of a concise pattern of multiple ovulations.…”

Section: Introductionmentioning

confidence: 99%

Relationship between the onset of oestrus, the preovulatory surge in luteinizing hormone and ovulation following oestrous synchronization and superovulation of farmed red deer (Cervus elaphus)

Asher¹,

Fisher²,

Jabbour³

et al. 1992

Reproduction

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“…The development of deer as an alternative farmed species over the past 15 years has led to an interest in the use of AI as a potential means of rapid genetic improvement (Asher et ai, 1988a(Asher et ai, , 1990 or creation of economically useful new hybrids (Asher et al, 1988b). Detailed information on the timing of the luteinizing hormone (LH) surge and behavioural oestrus is available only for two species of deer, fallow deer (Asher et ai, 1988a) and Père David's deer (Loudon et al, 1990).…”

Section: Introductionmentioning

confidence: 99%

Effect of age and time of day on the timing of the surge in luteinizing hormone, behavioural oestrus and mating in red deer hinds (Cervus elaphus)

Argo

Loudon

1992

Reproduction

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The oestrous cycles of fourteen red deer hinds (six yearling; eight more than 2 years old) were synchronized during the early breeding season by removal of a progesterone-containing intravaginal device and blood samples were taken at intervals of 3 h commencing 13 or 25 h later and continued for 54 h. The controlled internal drug release devices (CIDRs) were removed at 08:00 h (group 1; three yearlings and four adults) or 12 h later at 20:00 h (group 2; three yearlings and four adults). There was no significant effect of time of removal of CIDR on the interval to the onset of oestrus (group 1, 34.5 +/- 4.05 h; group 2, 42.14 +/- 7.8 h) on the time of peak concentration (group 1, 41.81 +/- 5.69 h; group 2, 41.71 +/- 7.81 h) or on duration of the luteinizing hormone (LH) surge (group 1, 15.00 +/- 0.95 h; group 2, 14.57 +/- 0.78 h). The six yearling animals exhibited oestrus and LH surge significantly later than the adults (55 +/- 4.2 versus 32 +/- 6.3 h for the LH surge for yearling and adult females, respectively). In a further experiment, 20 hinds were synchronized during the breeding season by removal of CIDR at two times of day 12 h apart and placed with a stag. Mating took place at a mean time of 42.1 +/- 2.4 h and 37.0 +/- 1.3 h later in the two groups. There was no significant effect of time of removal of CIDR upon time to onset of oestrus.(ABSTRACT TRUNCATED AT 250 WORDS)

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Hybridization of Père David's deer (Elaphurus davidianus) and red deer (Cervus elaphus) by artificial insemination

Cited by 47 publications

References 4 publications

Capacitation status of frozen–thawed spermatozoa from wild ruminant species

Capacitation status of frozen–thawed spermatozoa from wild ruminant species

Relationship between the onset of oestrus, the preovulatory surge in luteinizing hormone and ovulation following oestrous synchronization and superovulation of farmed red deer (Cervus elaphus)

Effect of age and time of day on the timing of the surge in luteinizing hormone, behavioural oestrus and mating in red deer hinds (Cervus elaphus)

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