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The voluntary intake and utilization of forage-concentrate diets by ewes in late pregnancy

AuthorsCastro, Teresa; Fernández Bermúdez, Florentino ; Valdés, Carmen ; Mantecón, Ángel R. ; Manso, Teresa; Salazar, I.
KeywordsPregnant ewes
Voluntary intake
Issue Date1994
PublisherPolish Academy of Sciences
CitationJournal of Anímal and Feed Scíences 3: 181-189 (1994)
AbstractThe objectives of this study were to examine the effects of concentrate intake on voluntary intake of forage by Churra ewes in late pregnancy. Three levels ofconcentrate (0. 300 and 600 g/day) with two hays available on an ad libitum basis (lucerne, DMD : 66.6 %) and pasture (DMD:70.0%) were led to 36 pregnant Churra ewes from day 110 of pregnancy until lambing. Ewes receiving roughage only had slightly higher intake ofpasture hay than lucerne hay but when concentrate was fed, voluntary intake of luceme tended to be higher. Olfering more concentrate to the ewes reduced voluntary intake of hays with a greater decline lor the pasture hay. As pregnancy progressed, hay intake increased and reached its maximum during thc l8th week ol pregnancy. Ewes Within treatments showed similar total DM intake. A predictive equation may derive hay intake from hay digestibility. concentrate intake, ewe live weight and litter weight.
Description9 pages, 4 tables.
Publisher version (URL)http://www.ifzz.pl/articles.php?cat_id=4
Appears in Collections:(IGM) Artículos
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