Animal Production-Veterinary Medicine Program, Autonomus University of Guerrero, Cuajinicuilapa, Guerrero, Mexico.
School of Veterinary Medicine and Animal Production No. 2, Autonomus University of Guerrero, Cuajinicuilapa, Guerrero, Mexico.
Trop Anim Health Prod. 2020 Nov;52(6):3519-3526. doi: 10.1007/s11250-020-02386-4. Epub 2020 Sep 21.
The aim of this investigation was to evaluate the use of ripe mango as a source of energy in an integral diet consisting of regional products for fattening lambs. Twenty-seven Creole lambs were used and given a 10-day period to adapt to the diet. Three treatments were evaluated: T1 = 40% mango; T2 = 50% mango; and T3 = control diet. In the in vitro analysis, partial and accumulated production of biogas and methane, degradation of dry matter, and neutral detergent fiber were determined. In the in vivo analysis, dry matter intake (DMI), daily weight gain (DWG), apparent digestibility of nutrients, and ruminal characteristics were estimated. The experimental design was completely random. The in vitro results helped hypothesize that the diets with low fiber content would not affect potential dry matter intake. With the exception of the protozoa count, ruminal characteristics were not different among diets (p > 0.05). In productive response, T3 was 13.73% higher DMI than T1, which was 32.24% higher than T2. T3 promoted 61.22% more DWG than T1 and T2. T2 displayed better digestibility of dry matter, organic matter, neutral detergent fiber, and crude protein than T3 (p < 0.05). Fattening lambs fed rations that contain 40% and 50% mango reduces the dry matter intake and daily weight gain relative to the control, although apparent digestibility is higher than for the control diet.
本研究旨在评估成熟芒果作为区域产品育肥羔羊整体饮食中能量来源的使用。使用了 27 只克里奥尔羔羊，并给予了 10 天的适应期。评估了三种处理方法：T1=40%芒果；T2=50%芒果；T3=对照饮食。在体外分析中，测定了沼气和甲烷的部分和累积产量、干物质降解以及中性洗涤剂纤维的降解。在体内分析中，测定了干物质摄入量（DMI）、日增重（DWG）、养分表观消化率和瘤胃特性。实验设计完全是随机的。体外结果有助于假设低纤维含量的饮食不会影响潜在的干物质摄入量。除了原虫计数外，不同饮食之间的瘤胃特性没有差异（p>0.05）。在生产响应方面，T3 的 DMI 比 T1 高 13.73%，比 T2 高 32.24%。T3 比 T1 和 T2 分别多促进了 61.22%的 DWG。T2 对干物质、有机物、中性洗涤剂纤维和粗蛋白的消化率高于 T3（p<0.05）。与对照相比，育肥羔羊喂养含有 40%和 50%芒果的日粮会降低干物质摄入量和日增重，尽管表观消化率高于对照日粮。
