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Prediction of feed intake in the Italian dairy sheep | Avondo | Italian Journal of Animal Science
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DOI: http://dx.doi.org/10.4081/ijas.2005.1s.35

Prediction of feed intake in the Italian dairy sheep

Marcella Avondo

Abstract


Recommendations on feed intake for sheep are based on assessments of genetic types, feeding systems and environ- 

mental conditions that are very different from Italian ones. These considerations underline the need for intake data or 

models that derive from local trials. For this reason intake data of lactating and dry ewes, pregnant ewes, rams and 

growing lambs have been collected from selected literature based on sheep feeding trials mainly conducted on dairy 

breeds in Italy or in other Mediterranean countries. Equations and intake tables differentiated according to the physio- 

logical and productive categories, as well as feeding typology are reported. Particular consideration is given to pasture 

intake with supplementation, reporting three equations developed for three qualitative levels of the pasture, recogniz- 

able from the CP content of herbage: < 10% DM; ≥ 10% and ≤ 16% DM; >16% DM. The equations include animal and 

pasture variables and supplementation, expressed as grams of CP given with feeds other than pasture. Only when pas- 

ture CP content is lower than 10% DM, supplement is not included in the equation, as no or negative substitution effect  is expected. 


Keywords


Feed intake, Dairy sheep, Mediterranean environment

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Submitted: 2010-01-05 16:49:05
Published: 2010-01-05 16:49:15
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the Italian Journal of Animal Science [eISSN 1828-051X] is the official journal of the Animal Science and Production Association and it is published by PAGEPress®, Pavia, Italy. Reg. Pavia, n. 2/2010-INF. All credits and honors to PKP for their OJS.