Use of forage groundnut (Arachis pintoi) and sugar cane in the diet of Sahiwal x Holstein calves

摘要

Thesubstitution(0,25,50and75%)ofthedrymatter(DM)andthetotalprotein(TP)ofacommercialbalancedconcentrate(B)byforagegroundnutnbsp;(Arachispintoi)plussugarcane(S)(Saccharumofficinarum)wasevaluated.nbsp;20SahiwalxHolsteincalveswithinitialweightaverageof72.5#177;4kgwereused.Thetreatmentswere:BS,B(100%oftherequirementtotalprotein(TPR)inDM)+S;BSP25,75%ofB+P(25%oftheTPRinDM)+S;BSP50,50%ofB+P(50%oftheTPRinDM)+S;BSP75,25%ofB+P(75%oftheTPRinDM)+S.Atotalrandomexperimentaldesignwasused.Thedailygainofliveweight(DWG),consumptionofDM(DMC),feedconversion(FC),consumptionofTP(TPC)andeconomicanalysiswasevaluated.Threeexperimentalperiodswereevaluated(1-30,31-60and61-90d)andatotal(1-90d).TheDWGperperiodandtotal(gd-1)wasnotdifferent(p0.05)amongtreatments.InthetotalperiodtheaveragesofDWGwere0.587,0.627,0.549and0.584;forthelevelsofsubstitution0,25,50and75%ofPT,respectively.TheDMCintheperiods31-60dandtotalwasbigger(p0.05)whenthedietcontainedlessP.TheFCwasnotaffected(p0.05)bythesubstitution.TherewasbettereconomicprofitwithBSP75(223.94dollarsand74.14%ofprofitability).ItwasconcludedthattheArachispintoiisapotentialsourceofproteinthatallowstoimprovetheproductiveandeconomicefficiencyofruminantgrowth.