| Attributes | Values |
|---|
| rdf:type
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| Description
| - Zjišťovali jsme, zda je doba odstavu hříbat u klisen zebry stepní (Equus burchelli) ovlivněna pohlavím již narozeného sajícího hříběte nebo nošeného plodu. V ZOO Dvůr Králové bylo ve 3 různých stádech sledováno celkem 19 hříbat zebry stepní. Nejmladší odstavené hříbě bylo staré jen 243 dní. Nejkratší doba mezi posledním kojením a následným porodem byla 83 dní u hříběte, které bylo v tu chvíli staré 355 dní. Březí klisny odstavovaly svá hříbata dříve než klisny, které březí nebyly. Analýzou přežití bylo zjištěno, že nejdůležitějším faktorem určujícím věk hříbat při odstavu bylo pohlaví plodu. V případě, že plod byl samčího pohlaví, klisna odstavila své sající hříbě dříve, než když klisna nosila plod samičího pohlaví. Toto zjištění je první svého druhu u kopytníků. Při hodnocení doby odstavu u koňovitých je třeba brát v úvahu i reprodukční status klisny a pohlaví jejího hříběte. (cs)
- We examined if captive plains zebra (Equus burchelli) mares change the timing of weaning according to the sex of the suckling foal and of the new impending foetus. We observed 19 captive plains zebra foals, in three different formations, at the Dvůr Králové Zoo. The earliest time for weaning of any foal was recorded at the age of only 243 days. The latest suckling that was ever recorded occurred 83 days before the dam’s next delivery, when the foal was at the age of 355 days. We found that pregnant mares weaned their foals sooner than the non-pregnant mares. Survival analysis revealed that the sex of the foetus was the most influential factor in determining the weaning age of the current foal. Hence, if the foetus was a male, then weaning occurred sooner than if the dam was carrying a female foetus. This finding is the first of this kind among ungulates. The reproductive state of the mare and the sex of her foetus should be considered when interpreting weaning times of equids.
- We examined if captive plains zebra (Equus burchelli) mares change the timing of weaning according to the sex of the suckling foal and of the new impending foetus. We observed 19 captive plains zebra foals, in three different formations, at the Dvůr Králové Zoo. The earliest time for weaning of any foal was recorded at the age of only 243 days. The latest suckling that was ever recorded occurred 83 days before the dam’s next delivery, when the foal was at the age of 355 days. We found that pregnant mares weaned their foals sooner than the non-pregnant mares. Survival analysis revealed that the sex of the foetus was the most influential factor in determining the weaning age of the current foal. Hence, if the foetus was a male, then weaning occurred sooner than if the dam was carrying a female foetus. This finding is the first of this kind among ungulates. The reproductive state of the mare and the sex of her foetus should be considered when interpreting weaning times of equids. (en)
|
| Title
| - Sex of the foetus determines the time of weaning of the previous offspring of captive plains zebra (Equus burchelli)
- Pohlaví plodu určuje dobu odstavu předešlého potomstva u zebry stepní (Equus burchelli) (cs)
- Sex of the foetus determines the time of weaning of the previous offspring of captive plains zebra (Equus burchelli) (en)
|
| skos:prefLabel
| - Sex of the foetus determines the time of weaning of the previous offspring of captive plains zebra (Equus burchelli)
- Pohlaví plodu určuje dobu odstavu předešlého potomstva u zebry stepní (Equus burchelli) (cs)
- Sex of the foetus determines the time of weaning of the previous offspring of captive plains zebra (Equus burchelli) (en)
|
| skos:notation
| - RIV/00027014:_____/07:#0000406!RIV08-MZE-00027014
|
| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| - P(GD523/03/H076), Z(MSM6046070901), Z(MZE0002701402)
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| http://linked.open...iv/cisloPeriodika
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/00027014:_____/07:#0000406
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Equus burchelli; weaning time; zebra; maternal investment; Trivers–Willard model; ZOO (en)
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| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...odStatuVydavatele
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...i/riv/nazevZdroje
| - Applied Animal Behaviour Science
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Bartoš, Luděk
- Pluháček, Jan
- Bartošová-Víchová, Jitka
|
| http://linked.open...n/vavai/riv/zamer
| |
| issn
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| number of pages
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