Preliminary Observations on the Reproductive Cycle of Male Fallow Deer (Dama Dama L.)

Chapman, D. I.; Chapman, Norma G.

doi:10.1530/jrf.0.0210001

Cited by 38 publications

(24 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In domesticated animals (cattle, pig) a constant state of spermatogenic activity is observed. Among wild mammals there are numerous examples of seasonal cycles in testicular activity (Chapman and Chapman 1970, Lincoln 1971, Chaplin and White 1972, Hocherau de Rivers and Lincoln 1978, Lincoln 1981, Raitsina 1985, Loudon and Curlewis 1988, Gosch and Fischer 1989, Webster et al 1992.…”

Section: Discussionmentioning

confidence: 99%

Bisoniana 118. Postnatal development of the European bison spermatogenesis

Czykier

Sawicki²,

Krasińska³

1999

Acta Theriol.

View full text Add to dashboard Cite

M. 1999. Postnatal development of the European bison spermatogenesis. Acta Theriologica 44: 77-90.The testes and epididymes of the European bison Bison bonasus (Linnaeus, 1758) were collected from culled animals living in free-ranging populations in Białowieża Forest, Borecka Forest and Bieszczady Mountains, and in captivity (103 males, 4 months to 17 years old). We found that all bulls were sexually mature at the age of 4 years, and some even at the age of 3 years. Animals which started mature spermatozoa production were treated as sexually mature. We observed the inhibition of spermatogenesis efficiency and involutionary changes in epididymal epithelium after 12 years of age. Therefore, in the postnatal development of spermatogenesis three phases were distinguished: I -development of spermatogenesis (4th month -4th year of age), II -mature spermatogenesis (4th -12th year), III -inhibition of spermatogenesis efficiency (over 12th year of age).

show abstract

Section: Discussionmentioning

confidence: 99%

Bisoniana 118. Postnatal development of the European bison spermatogenesis

Czykier

Sawicki²,

Krasińska³

1999

Acta Theriol.

View full text Add to dashboard Cite

show abstract

“…Feral Reeves' muntjac are now also established throughout much of southern England (Anderson & Cham, 1988 (Chapman & Chapman, 1982 (Chapman et al, 1984), although, in a captive colony in Japan, birth peaks apparently occurred in May and December (Yoshihara & Miura, 1984 Although female muntjac appear to breed throughout the year, the sexual cycle of male muntjac has not been studied in detail. Chaplin (1973) stated that male muntjac are fertile throughout the year, although no data were presented to support this suggestion. In this paper, we examine the reproductive cycle of adult male muntjac, to determine whether and how they maintain year-round fertility.…”

Section: Introductionmentioning

confidence: 98%

“…a 6-fold increase in weight in roe deer (Capreolus capreolus) (Bramley, 1970), a 4-5-fold increase in red deer (Lincoln, 1971) and a nearly 3-fold increase in fallow deer (Dama dama) (Chapman & Chapman, 1970). Associated with this testicular cycle are changes in the weight and activity of the male accessory glands (Lincoln, 1971; Chapman & Chapman, 1979;Yamauchi et al, 1983).…”

Section: Introductionmentioning

confidence: 99%

Evidence that the seasonal antler cycle of adult Reeves' muntjac (Muntiacus reevesi) is not associated with reproductive quiescence

Chapman¹,

Harris²

1991

Reproduction

Self Cite

View full text Add to dashboard Cite

“…In comparison to other ungulates, spermiogenesis in European bison appears quite late (Czykier et al 1999). For example in male wapiti (Cervus elaphus), the sperm was found to be present in ejaculate in 2-year-old specimens (Haigh et al 1984), in male fallow deer (Dama dama) at the age of 16 months (Chapman andChapman 1970, Chaplin andWhite 1972), in male red deer (Axis axis) between 12 and 15 months (Webster et al 1992) and in male North American bison (Bison bison) from 18 to 33 months of age (Helbig et al 2007). …”

Section: Discussionmentioning

confidence: 97%

Is spermiogenesis common or rare in young male European bison aged 2 and 3 years?

Czykier¹

2011

Polish Journal of Veterinary Sciences

View full text Add to dashboard Cite

The aim of the present study was to determine how often spermiogenesis occurs in young male European bison up to 3 years old. Research was performed on sections of the testes and epididymes collected from 51 male bison aged 2-3 years. The animals were divided into 2 age groups: young males up to 2 years and young males up to 3 years old, with further separation into specimens with or without spermiogenesis. The animals were culled during the autumn-winter seasons in 1994-2008 (after rutting period) in the Bialowieża Primeval Forest. Spermiogenesis in the 2-year-old animals was a rare condition found in 16.7% of cases. However, at the age of 3 years more than half of the individuals examined (53.3%) had spermiogenesis. Young males up to 2 years old with spermiogenesis were characterized by a significantly higher body weight and their right testis also weighed more than the left testis of the animals without spermiogenesis, the difference being on the border of statistical significance.There was no significant differences in the body mass and weight of the left testis between older animals, up to 3 years old, with or without spermiogenesis. However, young males up to 3 years old with spermiogenesis were characterized by a significantly higher weight of the right testis than those without spermiogenesis.

show abstract

Preliminary Observations on the Reproductive Cycle of Male Fallow Deer (Dama Dama L.)

Cited by 38 publications

References 0 publications

Bisoniana 118. Postnatal development of the European bison spermatogenesis

Bisoniana 118. Postnatal development of the European bison spermatogenesis

Evidence that the seasonal antler cycle of adult Reeves' muntjac (Muntiacus reevesi) is not associated with reproductive quiescence

Is spermiogenesis common or rare in young male European bison aged 2 and 3 years?

Contact Info

Product

Resources

About