Effect Of Dietary Folic Acid And Betaine Addition On The Performance Of Broilers

ExperimentIEffects of different levels of folic acid and betaine sul)plemented in the diets on performance for broilers.Seven hundred and sixty-eight 1 -day-old male Arbor Acres broilers were randomly allotted into 12 dietary treatments ~vith 4 replicates and 16 broilers per replicate to determine the effects of different levels of folio acid and betaine supplemented in the diets on the performance of broiler. Diets were formulated to contain four graded levels of supplemental folic acid (0. 0.75, 1.5, 2.25mg/kg) and three graded levels of supplemental betaine (300, 600, 900mg/kg) by a 4 )< 3 factorial design. At the end of weeks 3 and 6, broilers were weighed and feed intake was recorded. The data of ADG. ADFJ and FIG ~vere analyzed. Tissues (livqr, muscle) and blood samples ~vere collected to determine crude protein levels of liver and breast muscle and plasma folic acid concentrate. IF. ALB, GLOB. BUN, URIC. CREA. 1G. FL. CFIOL and HDL-C in serum and RBC. WBC. PLT, HGB, MCV. RDW in blood were also analyzed. The results were: (1) there was no difference in ADG and FIG aii~ong treatments added with different levels of dietar supplemental folio acid and betaine during periods of 0-3 and 4-6 weeks (p>0.OS). However. with improving dietary folic acid supplemental levels, ADG was improved and F/G turned smaller (p>O.OS). Supplemental betaine significantly affected ADFI of broilers during 0-3 ~veeks (p<0.O5). (2) Supplemental folio acid and betaine had significantly improved level of protein in serum for 3-week-old broilers (p0.()5). (7) nle Ievel of folic acid inplasma of 3 week old broilers was significant1}' impro\'ed by dietan' supplemental folicacid to<0.0l), but among treatment added wit11 dietan' supplemel1tal folic acid of 0.75,l.5, 2.25 mg/kg, ti1ere was no significant pore1lce (p>().05).Experiment 2: Effects of dietary suPplemcntal fOIic acid and betaine sparingMethionine and Choline on perfOrmancc fOr broilers.Based on Experiment l, twelve treatments and ol1e contTol t"cre concluded in theExPeriment 2. The control diet were formulated b}' adding l l00 mg&g methionine, l300mg/kg choline, 0.55mg/kg, Folic acid, 800mg/kg n1etl1iol1ine, l000mg/kg choline and0.55mg&g folic acid into the based diets of Experiment l. The results x'ere; (l) Dietaresupplemental folic acid& betaine could spare dietan' n1ethio1h11e & choline in the controldiet, and there t"a...