The Objective Of The Study Will Probe Into The Using Of Mycotoxin Binder For Dairy Cattle Industry

In experiment one, feed samples from35dairy farms were collected to determine mycotoxin content. It was very serious that these feeds in China were polluted by mycotoxin. Especially, aflatoxin, zearalenone and deoxynivalenol in corn were the most serious than these from other feeds.In experiment two, the objective of this study was to evaluate milk production and milk composition when dietary mycotoxin binder was supplemented, and determine change of SCC in raw milk. Ninety dairy cows were randomly assigned to control group and experimental group with20g mycotoxin binder for a cow per day. The experimental period keep97days. The first7d of97d for adaptation period, cows were gradually introduced to their assigned diet. It was shown that addition of dietary mycotoxin binder had not effect on milk composition, but milk yield increased tendency and SCC markedly decreased (P<0.05). Therefor, the experiment indicated that mycotoxin binder may improve raw milk quality for dairy cattle farm.In experiment three, the objective of this study was to evaluate changes of feces bifidobacterium bifidum number and milk mycotoxin concentration when dietary mycotoxin binder was supplemented in lactating dairy cattle. Four dairy cattle with rumianl fistula were fed20g mycotoxin binder for a cow per day. At the same time, fifty dairy cows were randomly assigned to control group and experimental group with20g mycotoxin binder for a cow per day. All cows fed the same basal diets. It was shown that dietary mycotoxin binder adding decreased ppulation of obifidobacterium bifidum number in feces (P<0.05) and SCC number of raw milk. In experiment group, recessive mastitis decreased75.27%compared with starting of experimentation. In contrast with starting of experimentation, aflatoxin M1, zearalenone and deoxynivalenol of raw milk from experimental group reduced from nearly80%to100%, respectively. However, raw milk mycotoxin concentration from control group did not change compared with starting of experiment. Therefor, the study indicated that raw milk quality was improved by mycotoxin binder supplement in diet. In experiment four, the objective of this study was to evaluate changes of feces bifidobacterium bifidum number and milk AFM1concentration when different levels mycotoxin binder was supplemented in diet of lactating dairy cattle. Eighty Chinese Holstein dairy cattles were randomly assigned to control group with20g powdered zeolite for a cow per day and three experimental groups. The three experimental groups received supplementation of10g mycotoxin binder and10g powdered zeolite for a cow per day,15g mycotoxin binder and5g powdered zeolite, or20g mycotoxin binder,respectively. All cows in fed the same basal diets. It was shown that dietary different levels mycotoxin binder adding can decrease population of bifidobacterium bifidum from feces, but significant difference is not. In contrast with starting of experimentation, aflatoxin M1of raw milk from experimental groups reduced (P<0.05), and content of aflatoxin M1remainder is less with mycotoxin binder increasing. Milk aflatoxin M1concentration in control group did not change compared with starting of experiment.