Gutiérrez-Arenas Diana A, Cuca-García Manuel, Méndez-Rojas Miguel A, Pro-Martínez Arturo, Becerril-Pérez Carlos M, Mendoza-Álvarez Maria Eugenia, Ávila-Ramos Fidel, Ramírez-Bribiesca Jacinto Efrén
Departamento de Medicina Veterinaria y Zootecnia, División de Ciencias de la Vida, Campus Irapuato-Salamanca, Universidad de Guanajuato, Ex Hacienda El Copal Km. 9, Carretera Irapuato-Silao, A.P. 311, Irapuato CP 36824, Gto., Mexico.
Programa de Ganadería, Instituto de Recursos Genéticos y Productividad, Campus Montecillo, Colegio de Postgraduados, Carretera Mexico-Texcoco Km. 36.5, Montecillo, Texcoco CP 56230, Méx., Mexico.
Animals (Basel). 2021 Sep 23;11(10):2773. doi: 10.3390/ani11102773.
Dicalcium phosphate (DP) is a mineral involved in the metabolism and development and is used as a dietary source of phosphorus (P) for poultry. Our study objective is to design nano-dicalcium phosphate (NDP) by co-precipitation. The methodological procedure was divided into two phases: (1) NDP synthesis, and (2) bird performance, digestibility, and Ca-P in chick's tissues. The sizes of the NDP were 20-80 nm. NDP had the Ca: P ratio of 1:1.12. The birds were divided into control diet (available P (P) = 0.13%) and three supplementary P sources [Commercial (Calcium phosphate), analytical grade (DP) and nanoparticles (NDP)] with three P levels (0.24, 0.35, 0.46%). Supplementary P sources compared to the control treatment had the highest body weight gain (698.56 vs. 228; < 0.05) and feed intake (FI) (965.18 vs. 345.82), respectively. The digestibility of P (67%) improved with 0.35% NDP. The highest contents of P -breast were with the levels of 0.35 and 0.46% NDP. The P, ash, and diameters were higher ( < 0.05) with supplementary P compared to the control treatment. As conclusion, the use of 0.35% NDP was the ideal dose in the chicks for the digestibility, absorption values, and the amount of P in the breast.
磷酸二钙（DP）是一种参与新陈代谢和发育的矿物质，用作家禽的磷（P）膳食来源。我们的研究目标是通过共沉淀法设计纳米磷酸二钙（NDP）。方法步骤分为两个阶段：（1）NDP合成，以及（2）雏鸡的生长性能、消化率和组织中的钙磷含量。NDP的粒径为20 - 80纳米。NDP的钙磷比为1:1.12。将雏鸡分为对照日粮组（有效磷（P）= 0.13%）和三种补充磷源组[商业用（磷酸钙）、分析纯级（DP）和纳米颗粒（NDP）]，设置三个磷水平（0.24%、0.35%、0.46%）。与对照处理相比，补充磷源组的体重增加量最高（698.56对228；P < 0.05），采食量（FI）也最高（965.18对345.82）。添加0.35% NDP时，磷的消化率提高到67%。胸肉中磷含量最高的是添加0.35%和0.46% NDP的水平。与对照处理相比，补充磷时磷、灰分和直径更高（P < 0.05）。结论是，对于雏鸡的消化率、吸收值以及胸肉中的磷含量而言，使用0.35%的NDP是理想剂量。
