Effects of Restricted Basal Diet Supplemented with Hydroponic Barley Seedling on Meat Quality and Muscle Amino Acid Composition of Zi Goose
This experiment was conducted to explore the effects of restricted basal diet supplemented with hydroponic barley seedling on meat quality and muscle amino acid composition of Zi goose.A total of 160 Zi geese(half male and half female)at 28 days of age were randomly divided into 4 groups with 4 replicates in each group and 10 geese per replicate.Geese in the control group were fed basal diet.Geese in 85%,72.5%and 60%restriction groups were fed basal diet at proportions of 85%,72.5%and 60%,with free access to hydroponic barley seedlings.The experiment lasted for 42 days.The results showed as follows:① 72.5%and 60%restriction groups had significantly lower muscle 24 h drip loss rate than that in the control group(P<0.05).② There was no significant difference in muscle basal nutritional composition among 4 groups(P>0.05).③ In 72.5%and 60%restriction groups,leg muscle glycocoll content and breast and leg muscles proline content were significantly higher than those in the control group and 85%restriction group,breast muscle histidine content was significantly lower than those in the control group and 85%restriction group(P<0.05).In breast muscle,nonessential amino acids(NEAA)content in 60%restriction group and delicious amino acids(DAA)content in 72.5%and 60%restriction groups were significantly higher than those in the control group and 85%restriction group(P<0.05).In leg muscle,total amino acids(TAA)content in 72.5%restriction group was significantly higher than those in other groups.NEAA content in 72.5%and 60%restriction groups were significantly higher than that in the control group,while essential amino acids(EAA)/TAA rate and EAA/NEAA rate of them were significantly lower than that in the control group(P<0.05).It was concluded that feeding 72.5%basal diet with free access to hydroponic barley seedlings could enhance the water holding ability and raise the delicious amino acids content of Zi goose muscle,thereby improving its meat taste and flavor.However,when the proportion of basal diet less than 72.5%,the essential amino acids proportion of muscle might be reduced.
Zi goosehydroponic barley seedlingmeat qualityamino acid
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