Discriminating among novel foods: effects of energy provision on preferences of lambs for poor-quality foods
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| Category | Journal Articles |
|---|---|
| Abstract |
A study was conducted to better understand how lambs discriminate among novel foods based on flavour and post-ingestive effects. The manner in which temporal sequence of food ingestion and post-ingestive feedback affected preference when lambs were fed flavoured wheat straw (a poorly nutritious novel food) immediately after eating milo grain (an energy-rich novel food), or after milo was infused in the rumen, was investigated. Lambs did not acquire a preference for flavoured straw when they were fed straw immediately after eating milo, evidently because they quickly discriminated the flavour-feedback effects of milo from straw. However, lambs infused with milo prior to eating straw in one flavour or another preferred the flavoured straw eaten after the milo infusions (P<0.001), and they preferred milo>flavoured straw eaten after milo infusions>flavoured straw eaten without milo infusions (P<0.001). Thus, when the flavour cue (milo) was removed, lambs did not discriminate milo from straw to as great a degree as when they first ate milo and then ate straw. The manner in which lambs quickly discriminated between novel foods - grape pomace-starch (70-30 |
| Date | 2000 |
| Publication Title | Applied Animal Behaviour Science |
| Volume | 66 |
| Issue | 1/2 |
| Pages | 87-106 |
| ISBN/ISSN | 0168-1591 |
| DOI | 10.1016/S0168-1591(99)00066-0 |
| Language | English |
| Author Address | Department of Rangeland Resources, Utah State University, Logan, UT 84322-5230, USA. |
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