PERFORMANCE OF GARUT BREED RAMS FED BY RATION CONTAINING DIETARY ADDITIONS OF CATION-ANION DIFFERENCE AND FATTY ACID CONTENTS

R. Hidayat, T. Toharmat, A. Boediono, I.G. Permana

Abstract
This study was carried out to evaluate the effect of dietary cation-anion difference (DCAD) and fish oil supplementations on dry matter intake (DMI), dry matter digestibility (DMD) and organic matter digestibility (OMD), weight gain, as well as the acidity of urine in Garut breed rams. The dietary treatments were as follows: R0= basal ration (DCAD +14) without fish oil, R1= basal ration (DCAD +14) with 3% fish oil, R2= base ration (DCAD +40) without fish oil, R3= base ration (DCAD +40) with 3% fish oil, R4= acid ration (DCAD -40) without fish oil, and R5= acid ration (DCAD -40) with 3% fish oil. All rations contained 150 ppm of zinc and were offered to 18 of Garut breed rams. The result indicated that DCAD +40 and -40 decreased DMI significantly. The ration with DCAD +40 had the lowest DMI. Fish oil supplementation decreased DMI. No differences were observed for DMD and OMD. DCAD +40 and -40 decreased body weight of rams except RA0 ration. However, the body weight of rams was very low. Variation of urine pH followed the DCAD pattern. It could be concluded that DCAD +40 and -40, as well as fish oil supplementations decreased DMI, body weight and urine's pH followed DCAD pattern.

Key words: Cation, anion, body weight, digestibility, Garut breed rams

PERFORMANŢA BERBECILOR GARUT HRĂNIŢI CU RAŢII DE HRANĂ CONŢINÂND DIFERENŢE PRIVIND ADAOSUL DE CATIONI-ANIONI ŞI ACIZI GRAŞI

R. Hidayat, T. Toharmat, A. Boediono, I.G. Permana

Rezumat
Acest studiu a fost efectuat pentru a evalua efectul suplimentarii hranei cu niveluri diferite de cationi-anioni (NDCA) si grasime de peste asupra ingestei de substanta uscata (ISU), digestibilitatii substantei uscate (DSU) si a substantei organice (DSO), sporului în greutate si aciditatii urinii la berbecii de rasa Garut. Concentratiile NDCA din hrana au fost distibuite pe brupuri astfel: R0= ratie bazica (NDCA +14), fara untura de peste, R1= ratie bazica (NDCA +14), cu 3% untura de peste, R2= ratie bazica (NDCA +40), fara adaos de untura de peste, R3= ratie bazica (NDCA +40) cu 3% untura de peste adaugata, R4= ratie acida (NDCA -40) fara untura de peste si R5=ratie acida (NDCA -40), cu 3% untura de peste. Toate versiunile de ratii au continut 150 ppm zinc, si au fost administrate la 18 berbeci Garut. Rezultatele au aratat ca ratiile cu NDCA +40 si -40 au scazut semnificativ ingestia de substanta uscata (ISU), cel mai redus nivel fiind corespunzator utilizarii ratiei cu NDCA +40. Suplimentarea hranei cu untura de peste a scazut, de asemenea, nivelul DMI. Nu s-au observat diferente în ceea ce priveste DSU si DSO. Ratiile NDCA +40 si -40 au produs reducerea greutatii corporale, spre deosebire de ratia R0. cu toate acestea, greutatea vie a berbecilor a fost foarte redusa. Variatiile pH-ului urinar au urmat modelul dinamic al NDCA. În concluzie, ratiile NDCA +40 si -40, la fel si suplimentarea lor cu untura de peste, au determinat reducerea ISU, a greutatii corporale si au imprimat o tendinta specifica dinamicii pH-lui urinar.

Cuvinte cheie: cation, anion, greutate corporala, digestibilitate, berbeci rasa Garut