提高日粮质量或在日粮中添加香味剂和复合酶对初产泌乳母猪的影响

来源：pig333世界猪业之窗 2023-12-28 11:30:15| 查看：次

　　Dietary supplementation with flavor and multi-enzymes may be a useful strategy to enhance primiparous sows’performance.

　　在日粮中添加香味剂和复合酶可能是提高初产母猪生产性能的有效策略。

　　Primiparous lactating sows have lower feed intake than multiparous sows,which results in insufficient energy and nutrient ingestion,causes excess body weight loss and oxidative stress,and compromises the weight gain of their progeny.Strategies to increase the intake of energy,such as greater energy concentration in their diet or improved feed intake and digestibility through the addition of flavor and multi-enzymes,should be beneficial for sow performance.This study aimed to explore how a high-quality diet or a flavor plus multi-enzyme diet affect the feed intake,nutrient digestibility and antioxidation capacity of lactating sows and the growth of their progeny.For that purpose,thirty primiparous sows were randomly assigned to three treatments from day 2 of lactation until weaning(day 21):control,with a basal diet;high quality,with 200 kcal/kg higher net energy than control;or the control diet supplemented with 500 mg/kg flavor and 100 mg/kg multi-enzymes.

　　初产泌乳母猪的采食量低于经产母猪，导致能量和营养摄入不足，从而导致体重过度减轻和氧化应激，并影响其后代的增重。增加能量摄入的策略，例如在日粮中增加能量浓度或通过添加香味剂和复合酶来提高采食量和消化率，应该对母猪生产性能有益。本研究旨在探讨优质日粮或添加香味剂和复合酶的日粮如何影响泌乳母猪的采食量、营养消化率和抗氧化能力及其后代的生长。为此，将30头初产母猪从哺乳期第2天到断奶（第21天）随机分配到三个处理组：对照组，基础日粮组；优质日粮组，净能量比对照高200千卡/公斤；或在对照日粮中添加500毫克/公斤的香味剂和100毫克/公斤的复合酶。

　　As a result,sows fed with the high quality or flavor+multi-enzymes diets improved piglets’live weight and average daily weight gain,litter weight gain and piglet growth to milk yield ratio.Compared with the control,the high quality and flavor+multi-enzymes groups increased the digestibility of ether extract,ash,neutral detergent fiber,crude fiber and phosphorus,and the high quality group also increased dry matter,gross energy,crude protein,acid detergent fiber and energy intake.Compared with the control,the flavor+multi-enzymes group decreased serum urea nitrogen and aspartate aminotransferase and enhanced superoxide dismutase,catalase and glutathione peroxidase,but it decreased malondialdehyde in milk supernatant.

　　结果表明，饲喂优质或香味剂+复合酶饲料的母猪提高了仔猪的活重和平均日增重、窝增重，仔猪生长与产奶量比。与对照组相比，优质饲料组和香味剂+复合酶组提高了乙醚提取物、灰分、中性洗涤剂纤维、粗纤维和磷的消化率，优质饲料组还增加了干物质、总能量、粗蛋白、酸性洗涤剂纤维和能量摄入。与对照组相比，香味剂+复合酶组降低了血清尿素氮和天冬氨酸转氨酶，提高了超氧化物歧化酶、过氧化氢酶和谷胱甘肽过氧化物酶，但降低了母乳上清液中的丙二醛。

　　To sum up,it was found that feeding on either high-quality or flavor plus multi-enzyme diets both improved sow feed digestibility and consequently increased the growth of piglets.In addition,the flavor plus multi-enzyme diet also improved the antioxidant capacity and health of sows.The data suggest that dietary supplementation with flavor and multi-enzymes may be more promising than a high-quality diet from a health and economic perspective like enhancing utilization of cereal by-products and thus reducing expenditure of corn and soybeans.

　　综上所述，研究发现，饲喂优质饲料或添加香味剂+复合酶饲料均可提高母猪饲料的消化率，从而提高仔猪的生长。此外，香味剂+复合酶日粮还可提高母猪的抗氧化能力和健康。数据表明，从健康和经济角度来看，添加香味剂和复合酶的日粮可能比优质日粮更有前景，比如提高谷物副产品的利用率，从而减少玉米和大豆的支出。

　　Zhe L,Zhou R,Theil PK,Krogh U,Yang L,Zhuo Y,Lin Y,Xu S,Jiang X,Huang L,Che L,Feng B,Wu D,Fang Z.提高日粮质量或日粮中添加香味剂和复合酶对初产泌乳母猪的影响。Animals.2022;12(12):1493.

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