Villar-Patiño Gonzalo, Camacho-Rea María Del Carmen, Olvera-García Myrna Elena, Soria-Soria Arturo, Baltazar-Vázquez Julio César, Gómez-Verduzco Gabriela, Solano Lourdes, Téllez Guillermo, Ramírez-Pérez Aurora Hilda
Programa de Doctorado en Ciencias de la Salud y de la Producción Animal, Facultad de Medicina Veterinaria y Zootecnia, Universidad Nacional Autónoma de México, Avenida Universidad 3000, Coyoacán, Ciudad de México 04510, Mexico.
Grupo Nutec, El Marqués, Querétaro 76246, Mexico.
Animals (Basel). 2023 Mar 22;13(6):1123. doi: 10.3390/ani13061123.
This study analyzed the effects of different dietary doses of encapsulated propyl propane thiosulfonate (Pe-PTSO) on the apparent ileal digestibility (AID) of nutrients and productive performance in broilers. A total of 100 one-day-old Cobb 500 were housed in battery cages for 20 days. At 10 days of age, the birds were assigned to one of five diets: negative control (P0), 250 mg/kg of Pe-PTSO (P250), 500 mg/kg of Pe-PTSO (P500), 750 mg/kg of Pe-PTSO (P750), and positive control, nicarbazin-narasin (ION). Titanium dioxide was the external marker, which was added to the diets from day 17 to 20. In the birds fed the P250 diet, there was a significant difference ( ≤ 0.05) in the AID values for amino acids and energy compared to those that consumed the P0 diet. Furthermore, the P250 diet significantly increased ( ≤ 0.05) the average daily weight gain compared to the P0 diet. No significant differences were observed between treatments in average daily feed intake and feed conversion ratio. In summary, the inclusion of 250 mg of encapsulated PTSO per kg in broiler chickens diet improved the digestibility of amino acids and energy, as well as weight gain.
本研究分析了不同日粮剂量的包被丙基丙烷硫代磺酸盐(Pe-PTSO)对肉鸡营养物质表观回肠消化率(AID)和生产性能的影响。总共100只1日龄的科宝500肉鸡饲养在层叠式笼中20天。在10日龄时,将这些鸡分为五种日粮之一:阴性对照(P0)、250mg/kg的Pe-PTSO(P250)、500mg/kg的Pe-PTSO(P500)、750mg/kg的Pe-PTSO(P750)以及阳性对照尼卡巴嗪-那拉菌素(ION)。二氧化钛作为外源指示剂,从第17天至第20天添加到日粮中。与采食P0日粮的鸡相比,采食P250日粮的鸡在氨基酸和能量的AID值上存在显著差异(≤0.05)。此外,与P0日粮相比,P250日粮显著提高了(≤0.05)平均日增重。在平均日采食量和饲料转化率方面,各处理之间未观察到显著差异。总之,在肉鸡日粮中每千克添加250mg包被的PTSO可提高氨基酸和能量的消化率以及体重增加。