Studies Of Berberis Abstract On Growth, Antioxidant Function And Meat Quality Of Broilers

Chinses herb is one of important substitute of antibiotics. Berberisradix is berberis plants,low of price and widespread source. There is wide-rang prospect of utility in livestock husbandry. The active effective components of Berberisradix were extracted and condensed by physical methods. The purpose of this experiments is to study the effects of extracted berberisradix on broilers'growth, antioxidation function and lipid metabolism.Area of source Berberisradix is native to shanxi Province Berberisradix materials were boiled with water to extract of the effective component. The purity of berberine was measured for 19.8% by High Performance Liquid Chromatograhy.Three hundred one-day-old Avain broilers were divided into five groups of six repeats. Each repeat had ten birds (five males and five females). Birds of group 1 were fed a diet with adding 5mg/kg avilamycin. The birds of group 2,3,4,5were fed a diet with adding 0.05%, 0.2%, 0.35%, 0.5% Berberis abstract respectively. Feeding experiment of seven weeks and metabolic experiment were carried on. The results showed that there were no great difference for 7th week weight, ADG and feed/gain ratio between adding avilamycin and Berberis abstract(P>0.05). Adding 0.35%, 0.5% berberis abstract markedly decreased ADFI(P<0.05). Adding 0.05%, 0.35%, 0.5% Berberis abstract decreased crude protein, calcium and total phosphorus apparent metabolic rate(P<0.01). The apparent metabolic rate of ether extract was decreased by adding 0.35%(P<0.05), and 0.5%(P<0.01) berberis abstract comparing with adding avilamycin. Adding 0.2% Berberis abstract could significantly increase the activity of amylase in duodenum chyme(P<0.01). Others decreased the activities of amylase and lipase. The results indicated that the addition of Berberis abstract wouldn't decreased the growth performance of broilers comparing with adding avilamycin, but the ADFI, nutrient apparent metabolic rate and activities of amylase and lipase would be decreased with rising of adding level of Berberis abstract.Thirty 7-week-old broilers were selected and slaughtered to study the effect of of abstract Berberisradix on antioxidation function and lipid metabolism. The adding of Berberis abstract could markedly increase the levels of SOD in liver, breast and thigh muscles(P<0.01). The activities of GSH-PX in liver were significantly increased by adding 0.05％,0.2％,0.5％(P＜0.01) and 0.35％(P＜0.05) of Berberis abstract comparing with adding avilamycin. The contents of MDA in liver were decreased by adding0.2％,0.35％,0.5％of Berberis abstract(P＜0.01). There were no differences for MDA contents in muscles among different groups(P＞0.05). The content of TG markedly decreased by adding 0.05％, 0.20％(P＜0.05), 0.35％, 0.5％(P＜0.01) of abstract Berberisradix. The content of HDL-C was increased by adding 0.35％, 0.5％(P＜0.01). It was concluded that abstract Berberisradix could increase the antioxidation function, decrease the content of TC and TG in body and improve lipid metabolism of broilers.Compared with adding avilamycin, therewas no any significant diference in carcass qualities(P＞0.05) by adding abstract Berberisradix. except abdominal fat content (P＜0.01). Adding 0.35％and 0.5％berberis abstract decreased drop loss and shear force in breast tousle (P＜0.05). The concentration of total cholesterol in muscle was decreased by adding 0.35％(P＜0.05), 0.5％(P＜0.01) of Berberis abstract. The content of saturated fatty acid was markedly decreased adding 0.20％,0.35％and 0.5％berberis abstract (P＜0.01). Adding 0.20％,0.35％and 0.5％berberis abstract markedly increase linolenic and linoleic acid(P＜0.01). It was concluded that Berberis abstract could increase unsaturated fatty acid especially linoleic acid,decrease total cholesterol and saturated fatty acid and improve meat quality.