Figueroa Jaime, Valenzuela Carolina, Guzmán-Pino Sergio A
Instituto de Ciencias Agroalimentarias, Animales y Ambientales-ICA3, Universidad de O'Higgins, San Fernando 3070000, Chile.
Departamento de Fomento de la Producción Animal, Facultad de Ciencias Veterinarias y Pecuarias, Universidad de Chile, Santa Rosa 11735, La Pintana 8820000, Chile.
Vet Sci. 2022 May 11;9(5):233. doi: 10.3390/vetsci9050233.
Pigs display an innate preference for sweet taste compounds such as sucrose. However, the influence of sucrose supplementation into maternal diets has not been examined in pigs. We tested the hypothesis that sucrose inclusion into sows’ diets would modify the feeding behavior of post-weaning pigs for sweet and umami solutions. Twenty-two sows (85 days of gestation) were used. They randomly received a gestational and lactating diet with or without 50 g/kg of sucrose. Different sucrose and monosodium glutamate solutions were offered to the progeny to analyze different intake behavior measurements during nursery. Pigs born from treated sows presented a higher sucrose threshold than control animals (15 mM vs. 0.1 mM, p = 0.032) and displayed decreased sensory-motivated intake for this disaccharide (p < 0.023). Sucrose consumption decreased (p < 0.021) in pigs born from treated sows, as well as the consumption patterns for the less concentrated solutions (p < 0.014). The inclusion of sucrose into maternal diets (gestation and lactation) could modified pigs’ feeding behavior after weaning when offered sweet solutions, which speaks against the practicality of this supplementation in pig production systems.
猪对蔗糖等甜味化合物表现出天生的偏好。然而，在母猪日粮中添加蔗糖的影响尚未在猪身上进行研究。我们检验了这样一个假设：在母猪日粮中添加蔗糖会改变断奶后仔猪对甜味和鲜味溶液的采食行为。使用了22头母猪（妊娠85天）。它们被随机分为接受含或不含50 g/kg蔗糖的妊娠和泌乳日粮。向后代提供不同的蔗糖和味精溶液，以分析保育期不同的采食行为指标。经处理的母猪所产仔猪的蔗糖阈值高于对照动物（15 mM对0.1 mM，p = 0.032），并且对这种二糖的感官驱动采食量降低（p < 0.023）。经处理的母猪所产仔猪的蔗糖摄入量降低（p < 0.021），以及浓度较低溶液的摄入模式也降低（p < 0.014）。在妊娠和泌乳的母猪日粮中添加蔗糖，在提供甜味溶液时可能会改变断奶后仔猪的采食行为，这表明这种添加在养猪生产系统中的实用性存疑。
