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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lamoot, Indra Vandenberghe, Charlotte Bauwens, Dirk Hoffmann, Maurice |
| Copyright Year | 2004 |
| Abstract | We investigated how free-ranging mares of two species of equids (donkeys and Shetland ponies) modify their foraging behaviour to meet the increased nutritional requirements induced by lactation. We initially hypothesised that lactating mares would graze for a longer time and/or graze faster than non-lactating (dry) mares. The grazing behaviour of free-ranging animals, foraging in two low-productive dune areas, was recorded during 1 year. Results show that in both species lactating animals did not spend more time grazing than non-lactating mares. However, lactating animals took more bites, and therefore achieved a higher bite rate than dry mares. Several factors affected the differences between lactating and non-lactating animals. Lactating mares took more bites only in grassy and rough vegetations and they did this only in patches with a short sward height. In addition, lactating mares took more bites of grasses only and not of forbs or woody plants. We conclude that the extra grazing effort of the lactating animals was not distributed randomly. Lactating mares invested their extra grazing effort principally towards those items that are the most grazed by the equids in general. We propose some hypotheses to explain why lactating mares increase their bite rate instead of augmenting the time spent grazing. |
| Starting Page | 19 |
| Ending Page | 27 |
| Page Count | 9 |
| File Format | |
| ISSN | 02890771 |
| Journal | Journal of Ethology |
| Volume Number | 23 |
| Issue Number | 1 |
| e-ISSN | 14395444 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2004-09-10 |
| Publisher Place | Tokyo |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Lactation Equids Horses Grazing time Bite |
| Content Type | Text |
| Resource Type | Article |
| Subject | Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
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