The aim of this study was to investigate the effects of dietary choline supplementation on growth performance, slaughter performance, and apparent nutrient utilization. One-day-old Qingnong gray geese 180 were randomly selected and divided into 6 treatments, each treated with 3 replicates and each repeated with 10 gooses. 0, 600, 1200, 1800, 2400 and 3000 mg/kg choline were added to the corn-soybean meal diet. The trial period is 15 weeks. The results show:
(1) Adding 1800 and 2400 mg/kg of cholinergic to diets significantly or significantly increased the average daily gain of geese from 1 to 4 and 5 to 15 weeks of age, and reducing the feed-to-weight ratio can effectively reduce the rate of dead-ageing.
(2) Adding 2400 mg/kg of choline to the diet significantly increased the total net wandering rate of 4 and 15 weeks old geese. Adding 1800 mg/kg of choline significantly increased the 15-week-old goose carcass rate and significantly reduced 15 The week-old goose has an abdominal fat percentage, but it has no significant effect on the semi-shock rate of goose at 4 and 15 weeks of age.
(3) The addition of 1,800 mg/kg choline to the diet significantly or significantly increased the apparent utilization of calcium, phosphorus, neutral detergent fibers, and acidic detergent fibers, but apparent use of dry matter, organic matter, and crude protein The rate effect is not significant. According to the results, it is feasible to add choline in the diet of geese. It is advisable to add choline at a level of 1800 mg/kg.
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