Saseendran Arathy, Ally K, Gangadevi P, Banakar P S
Department of Animal Nutrition, College of Veterinary and Animal Sciences, Kerala Veterinary and Animal Sciences University, Mannuthy, Thrissur - 680 651, Kerala, India.
Vet World. 2017 Feb;10(2):149-155. doi: 10.14202/vetworld.2017.149-155. Epub 2017 Feb 7.
To study the effect of dietary supplementation of lecithin and carnitine on growth performance and nutrient digestibility in pigs fed high-fat diet.
A total of 30 weaned female large white Yorkshire piglets of 2 months of age were selected and randomly divided into three groups allotted to three dietary treatments, T1 - Control ration as per the National Research Council nutrient requirement, T2 - Control ration plus 5% fat, and T3 - T2 plus 0.5% lecithin plus 150 mg/kg carnitine. The total dry matter (DM) intake, fortnightly body weight of each individual animal was recorded. Digestibility trial was conducted toward the end of the experiment to determine the digestibility coefficient of various nutrients.
There was a significant improvement (p<0.01) observed for pigs under supplementary groups T2 and T3 than that of control group (T1) with regards to growth parameters studied such as total DM intake, average final body weight and total weight gain whereas among supplementary groups, pigs reared on T3 group had better intake (p<0.01) when compared to T2 group. Statistical analysis of data revealed that no differences were observed (p>0.05) among the three treatments on average daily gain, feed conversion efficiency, and nutrient digestibility during the overall period.
It was concluded that the dietary inclusion of animal fat at 5% level or animal fat along with lecithin (0.5%) and carnitine (150 mg/kg) improved the growth performance in pigs than non-supplemented group and from the economic point of view, dietary incorporation of animal fat at 5% would be beneficial for improving growth in pigs without dietary modifiers.
研究在高脂日粮喂养的猪中添加卵磷脂和肉碱对生长性能和养分消化率的影响。
选取30头2月龄断奶的雌性大白约克夏仔猪，随机分为三组，分别给予三种日粮处理，T1组为按照美国国家研究委员会营养需求配制的对照日粮，T2组为对照日粮加5%脂肪，T3组为T2组加0.5%卵磷脂加150毫克/千克肉碱。记录每头动物的总干物质摄入量和每两周的体重。在实验结束时进行消化率试验，以确定各种养分的消化率系数。
在研究的生长参数方面，如总干物质摄入量、平均末体重和总增重，补充组T2和T3的猪与对照组（T1）相比有显著改善（p<0.01）；而在补充组中，T3组饲养的猪与T2组相比摄入量更好（p<0.01）。数据的统计分析表明，在整个期间，三种处理在平均日增重、饲料转化率和养分消化率方面没有观察到差异（p>0.05）。
得出的结论是，日粮中添加5%的动物脂肪或动物脂肪与卵磷脂（0.5%）和肉碱（150毫克/千克）一起添加，比未补充组能提高猪的生长性能，从经济角度来看，日粮中添加5%的动物脂肪对提高猪的生长有益，无需添加日粮调节剂。
