Elephant Development - Revision history

Z8600021 at 15:28, 24 July 2019

2019-07-24T15:28:06Z

← Older revision		Revision as of 02:28, 25 July 2019
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	[[File:African elephant cow and calf.jpg\|300px\|thumb\|alt=African elephant cow and calf\|African elephant cow and calf]]		[[File:African elephant cow and calf.jpg\|300px\|thumb\|alt=African elephant cow and calf\|African elephant cow and calf]]

	* The average gestation age for ~~elephants~~ is 660 days.		* The average gestation age for {{elephant}}s is 660 days.
	* An infant elephant is called a '''calf''' and a newborn can weigh 90 to 120 kilograms (198 to 264 pounds).		* An infant elephant is called a '''calf''' and a newborn can weigh 90 to 120 kilograms (198 to 264 pounds).
	** The calf suckles milk from its mother taking up to 12 litres each day.		** The calf suckles milk from its mother taking up to 12 litres each day.

Z8600021 at 01:05, 7 Ocak 2015

2015-01-07T01:05:35Z

← Older revision		Revision as of 12:05, 7 Ocak 2015
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	==Ovary and Uterus==		==Ovary and Uterus==
	[[File:Elephant ovary and uterus.jpg\|alt=Elephant ovary and uterus\|~~600px~~]]		[[File:Elephant ovary and uterus.jpg\|alt=Elephant ovary and uterus\|800px]]

	Fetal and postnatal elephant ovary and uterus<ref><pubmed>22824067</pubmed>\| [http://www.biomedcentral.com/1746-6148/8/119 BMC Vet Res.]</ref>		Fetal and postnatal elephant ovary and uterus<ref><pubmed>22824067</pubmed>\| [http://www.biomedcentral.com/1746-6148/8/119 BMC Vet Res.]</ref>

Z8600021 at 01:04, 7 Ocak 2015

2015-01-07T01:04:35Z

← Older revision		Revision as of 12:04, 7 Ocak 2015
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	Elephant fetal stages		Elephant fetal stages
	\|}		\|}


			==Ovary and Uterus==
			[[File:Elephant ovary and uterus.jpg\|alt=Elephant ovary and uterus\|600px]]

			Fetal and postnatal elephant ovary and uterus<ref><pubmed>22824067</pubmed>\| [http://www.biomedcentral.com/1746-6148/8/119 BMC Vet Res.]</ref>
	==Additional Images==		==Additional Images==

Z8600021 at 00:49, 7 Ocak 2015

2015-01-07T00:49:51Z

← Older revision		Revision as of 11:49, 7 Ocak 2015
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	:'''Links:'''		:'''Links:'''
	== Development Overview ==		== Development Overview ==
	Days below are post-ovulatory.		{\|
			\| Days below are post-ovulatory.

	* 50 days - embryonic vesicle earliest observation		* 50 days - embryonic vesicle earliest observation
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	Data from<ref><pubmed>18387665</pubmed></ref>		Data from<ref><pubmed>18387665</pubmed></ref>
			\| [[File:Elephant fetal stages.jpg\|400px\|alt=Elephant fetal stages]]

			Elephant fetal stages
			\|}
	==Additional Images==		==Additional Images==

Z8600021 at 00:19, 7 Ocak 2015

2015-01-07T00:19:23Z

← Older revision		Revision as of 11:19, 7 Ocak 2015
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	=== Reviews===		=== Reviews===

	<pubmed></pubmed>		<pubmed>9835363</pubmed>


	=== Articles===		=== Articles===
	<pubmed></pubmed>		<pubmed></pubmed>
			<pubmed></pubmed>
			<pubmed></pubmed>
			<pubmed>22991581</pubmed>
			<pubmed>16264100</pubmed>


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	== External Links ==		== External Links ==
	{{External Links}}		{{External Links}}




	{{Glossary}}		{{Glossary}}


	{{Footer}}		{{Footer}}

Z8600021 at 00:17, 7 Ocak 2015

2015-01-07T00:17:17Z

@@ Line 18: / Line 18: @@
 |-bgcolor="F5FAFF"
+|
-* <ref><pubmed>22253660</pubmed></ref> "Developmental
+* '''Growth and development of the ovary and small follicle pool from mid fetal life to pre-puberty in the African elephant (Loxodonta africana)'''<ref name=PMID22824067><pubmed>22824067</pubmed>| [http://www.biomedcentral.com/1746-6148/8/119 BMC Vet Res.]</ref> "Follicle numbers and developing ovarian morphology, particularly with reference to the presence of interstitial tissue, are intimately linked within the ovary of the African elephant during the period spanning mid-gestation to puberty. These have not been previously quantified in any studies. The collection of 7 sets of elephant fetal ovaries between 11.2 and 20.2 months of gestation, and 29 pairs of prepubertal calf ovaries between 2 months and 9 years of age. ...The small follicle populations of the late-fetal and prepubertal ovaries of the African elephant were described along with the changing morphology of these organs. The changes noted represent a series of events that have been recorded only in the elephant and the giraffe species to date. The expansion of the interstitial tissue of the fetal ovary and its continued presence in early post natal life may well contribute to the control of follicle development in these early years. Further research is required to determine the reasons behind the variation of numbers of small follicles in the ovaries of prepubertal calves."
 |}
 {| class="wikitable mw-collapsible mw-collapsed"

Z8600021 at 00:14, 7 Ocak 2015

2015-01-07T00:14:52Z

@@ Line 19: / Line 19: @@
+|
 * <ref><pubmed>22253660</pubmed></ref> "Developmental
 |}
 {| class="wikitable mw-collapsible mw-collapsed"

Z8600021 at 04:15, 26 October 2014

2014-10-26T04:15:55Z

← Older revision		Revision as of 15:15, 26 October 2014
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	==Introduction==		==Introduction==
	[[File:African elephant cow and calf.jpg\|300px\|thumb\|alt=African elephant cow and calf\|African elephant cow and calf]]		[[File:African elephant cow and calf.jpg\|300px\|thumb\|alt=African elephant cow and calf\|African elephant cow and calf]]

			* The average gestation age for elephants is 660 days.
			* An infant elephant is called a '''calf''' and a newborn can weigh 90 to 120 kilograms (198 to 264 pounds).
			** The calf suckles milk from its mother taking up to 12 litres each day.
			* Adult male elephant is called a '''bull''' and can weigh up to 6,800 kilograms (15,000 pounds).
			* Adult female elephant is called a '''cow''' and can weigh up to 3,600 kilograms (8,000 pounds).


	:'''Links:'''		:'''Links:'''
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	\|}		\|}
	== Taxon ==		== Taxon ==
			[[File:Elephant and calf.jpg\|thumb\|Elephant and calf]]

	* African forest elephant - Loxodonta cyclotis		* African forest elephant - Loxodonta cyclotis
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	:'''Links:'''		:'''Links:'''
	== Development Overview ==		== Development Overview ==
			Days below are post-ovulatory.

			* 50 days - embryonic vesicle earliest observation
			* 62 days - embryo detectable
			* 71 days - embryonic heartbeat and allantois visible as a single sacculation
			* 76 days - allantois subdivided in four compartments
			* 95 days - head, rump, front and hind legs distinguishable
			* 95 to 103 days - choriovitelline placenta was replaced by the chorioallantoic placenta
			* 95 to 116 days - midgut herniation

			Data from<ref><pubmed>18387665</pubmed></ref>

	==Additional Images==		==Additional Images==

Z8600021 at 04:12, 26 October 2014

2014-10-26T04:12:21Z

← Older revision		Revision as of 15:12, 26 October 2014
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	===Historic Images===		===Historic Images===
			<gallery>
			Morgan 1925 fig63.jpg
			Morgan 1925 fig64.jpg
			</gallery>

	==References==		==References==

Z8600021 at 04:11, 26 October 2014

2014-10-26T04:11:20Z

← Older revision		Revision as of 15:11, 26 October 2014
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	:'''Links:'''		:'''Links:'''
	== Development Overview ==		== Development Overview ==


			==Additional Images==

			===Historic Images===