Effect of the supplementation with multinutritional blocks of pitaya (Stenocereus griseus L.) on the live weight gain of goats in the low Mixteca of Oaxaca, México

摘要

Theeffectoftheuseofpitaya(StenocereusgriseusL.)andureamulti-nutritionalblocks(MNB)onliveweightgainandbodyconditionofgoatsintheLowMixtecaregionofOaxacawasevaluated.Anexperimentwithparticipatingfarmerswascarriedoutusingarandomisedblockdesign,withfivetreatmentsconsistinginlevelsof50%(SG50),45%(SG45),40%(SG40)and35%(SG35)ofStenocereusgriseusL.fruit,plusanonly-grazingcontroltreatment(CTL),withfiveanimalspertreatment,overa75dayperiod.nbsp;MNBshowedrangesofcrudeprotein(CP)between29.2and36.1%.Thehighestintakewasof69.9g/dayfornbsp;SG40,withaliveweightgainof11.0g/dayandacostof$0.13/day.Bodyconditionimprovedinalltreatmentscomparedwiththecontrol.Farmerswereinterviewedafterwards,and75%consideredthatMNBcanpreventweightlossduringtheintensedroughtseason.TheintervieweesrecommendedfurtheruseofMNBincorporatingalsootherfruitsoflocalcacti(StenocereusstellatusandEscontriachiotilla);drypodsofAcaciacimbispinaSprague,AcaciafarnesianaandProsopislaevigata;leavesfromwildshrubsandnativegrasses.Itwasshownthatpitaya-ureaMNBareatechnicallyandeconomicallyviablealternativeforsupplementinggoatsintheregion.