Kyawt Yin Yin, Win Kyaw San, Mu Khin San, Aung Aung, Aung Min
Department of Animal Nutrition, University of Veterinary Science, Yezin, Myanmar.
Livestock Demonstration Farm, University of Veterinary Science, Yezin, Myanmar.
J Adv Vet Anim Res. 2020 Aug 3;7(3):436-441. doi: 10.5455/javar.2020.g439. eCollection 2020 Sep.
The aim of this experiment was to determine the effect of feeding pineapple waste silage (PWS) as the source of roughage replaced in Napier grass silage (NGS) on the nutrient intakes, energy status, and growth performances of growing Myanmar local cattle.
Eight growing Myanmar local cattle were randomly allocated into two groups, which were adjusted for age, sex, and body weight. Treatments were control (70% NGS + 30% concentrate) and PWS (45% NGS + 25% PWS + 30% concentrate). This experiment lasted for 6 weeks, including adaptation, and feed intake, energy status, and body weight gain were measured.
The higher ( < 0.05) intakes of dry matter, crude protein, non-fiber carbohydrate, neutral detergent fiber and energy, and energy balance were observed in the PSW group than in the control group. Although the initial and final body weights of both groups were not different ( > 0.05), the body weight gain and average daily gain were significantly higher ( < 0.05) in the PSW group than in the control group. Feeding PWS as a roughage source at 25% of diet improved the nutrient intake, energy balance, and body weight gain of growing Myanmar local cattle.
Thus, PWS could be used as the source of roughage replaced in NGS in Myanmar local cattle with the improvement of productive performances.
本实验旨在确定用菠萝皮废料青贮饲料（PWS）替代象草青贮饲料（NGS）中的粗饲料来源，对生长中的缅甸本地牛的营养摄入量、能量状态和生长性能的影响。
将八头生长中的缅甸本地牛随机分为两组，根据年龄、性别和体重进行调整。处理组分别为对照组（70% NGS + 30% 精饲料）和PWS组（45% NGS + 25% PWS + 30% 精饲料）。本实验持续6周，包括适应期，并测量了采食量、能量状态和体重增加情况。
与对照组相比，PWS组的干物质、粗蛋白、非纤维碳水化合物、中性洗涤纤维和能量摄入量以及能量平衡均较高（< 0.05）。虽然两组的初始和最终体重没有差异（> 0.05），但PWS组的体重增加和平均日增重显著高于对照组（< 0.05）。以占日粮25%的PWS作为粗饲料来源，可提高生长中的缅甸本地牛的营养摄入量、能量平衡和体重增加。
因此，在缅甸本地牛中，PWS可作为替代NGS中的粗饲料来源，从而提高生产性能。
