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The reproductive biology of the Form...

Pei, Chyi-Jai.

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The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C./
作者:	Pei, Chyi-Jai.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 1990,
面頁冊數:	123 p.
附註:	Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4227.
Contained By:	Dissertation Abstracts International51-09B.
標題:	Zoology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9104573

The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C.
Pei, Chyi-Jai.

The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C. - Ann Arbor : ProQuest Dissertations & Theses, 1990 - 123 p.

Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4227.

Thesis (Ph.D.)--University of Montana, 1990.

I examined 439 Formosan Reeves' muntjacs in a game-shop serving the study area during December 1988 and January 1989, and collected data from a captive population in the Taipei Zoo from August 1988 to September 1989. Polyestrus females ovulated around 5 months old and perhaps even earlier, but the first two or more ovulations may be infertile. Post-conception and post-partum estri were evident, and the ovarian cycle may persist throughout pregnancy. Although more than one ovum may be released during each estrus cycle, a single fawn and unilateral implantation in the right horn seems to be the rule.Subjects--Topical Terms:

518878
Zoology.

The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C.
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100 1 $a Pei, Chyi-Jai. $3 3427597
245 1 4 $a The reproductive biology of the Formosan Reeves' muntjac (Muntiacus reevesi micrurus) in Jiou-Jeng-Yang area, I-Lan, Taiwan, R.O.C.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 1990
300 $a 123 p.
500 $a Source: Dissertation Abstracts International, Volume: 51-09, Section: B, page: 4227.
500 $a Director: Bart W. O'Gara.
502 $a Thesis (Ph.D.)--University of Montana, 1990.
520 $a I examined 439 Formosan Reeves' muntjacs in a game-shop serving the study area during December 1988 and January 1989, and collected data from a captive population in the Taipei Zoo from August 1988 to September 1989. Polyestrus females ovulated around 5 months old and perhaps even earlier, but the first two or more ovulations may be infertile. Post-conception and post-partum estri were evident, and the ovarian cycle may persist throughout pregnancy. Although more than one ovum may be released during each estrus cycle, a single fawn and unilateral implantation in the right horn seems to be the rule.
520 $a Testes of males older than 11 months were fully active, but no animals younger than 7 months produced spermatozoa. Males produce sperm and probably are fertile at all stages in the antler cycle. Male's upper canines grow rapidly until 2-3 years of age. Adult males were commonly found with broken upper canines. Adult males cast antlers during April-May and shed velvet from August to September. Data suggested calves born during October-January acquired their first set of antlers at their first August-September, while others did not form antlers until their second August-September.
520 $a Growth of the mandibular diastema showed no difference between males and females, and the final length was reached shortly after 1 year of age. Body growth ceased at about 2 years of age in females, while males continued to grow after that. Adult males are significantly heavier than adult females (mean = 8.3 vs. 6.8 kg). The heavier body weight is considered a reflection of the dominant status of males over females.
520 $a Births apparently occurred every month of the year with one peak during June-August, 1988, and two less pronounced peaks during March-May, 1987, and November 1987-January 1988. The intervals between these peaks (i.e. 7 and 8 months) coincided with the gestation period for the species, suggesting the population might experience a partially synchronized sub-annual ($<$12 months) breeding cycle. The sub-annual cycle was probably created by the heavy trapping during winter in the study area.
590 $a School code: 0136.
650 4 $a Zoology. $3 518878
650 4 $a Forestry. $3 895157
690 $a 0472
690 $a 0478
710 2 $a University of Montana. $3 1021963
773 0 $t Dissertation Abstracts International $g 51-09B.
790 $a 0136
791 $a Ph.D.
792 $a 1990
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=9104573