Proteienbronnien die rantsoenev an groeiendev arke 3. 'n vergelykingt ussenv ismeel en af'geroomdem elk

Abstract

The study was conducted to replace fish-meal partially as protein sourcc in the rations ot'growtng pigs. ln the fust trtal ftshmeal was partially replaced with skim milk powder, while liquid skim milk was used to partially replace fish-meal in the sccond trial. The influence of this replacement on the growth, efficiency of tood utihzation and carcass composition of porkers was Investrgated. The resul tso f these t r r ,alsi ndicated that f ist r -mealc ould be par t ial ly replacedw i th skim mi lk on an equivalentp rotein and energy basis wi thout havinga signi f icante f fect on growth and carcassc ornposi t ion.

OPSOMMING.

Die studie is uitgevoer om vismeel gedeeltelik as proteibnbron in die rantsoene van groeiende varke te vervang. ln dle eerslc proef is vismeel gedeeltelik met afgeroomde melkpoeier vervang terwyl afgeroomde melk in die vloeibare vorm in die twcede procf as vervanger van vismeel gebruik is. Die mvloed wat di6 vcrvangingo p die groer,i doeltreffendheid van voerverbruik en karkassamestell ing van vleisvarkeg ehad het , is ondersoek. Die resul tate in hierdic studie verkry, dui daarop dat afgeroomdem elk wel suksesvogl ebruik kan word om vismeel gedeeltelik as proteibnbron op 'n ekwivalentep roteibn en energrebasitse vervang.