Jonova Sintija, Ilgaza Aija, Grinfelde Inga, Zolovs Maksims
Preclinical Institute, Latvia University of Life Sciences and Technologies, Faculty of Veterinary Medicine, Kr. Helmana Street 8, Jelgava, LV-3004, Latvia.
Department of Environment and Water Management, Latvia University of Life Sciences and Technologies, Faculty of Environmental and Civil Engineering, Akademijas Street 19, Jelgava, LV-3001, Latvia.
Vet World. 2018 Nov;11(11):1532-1538. doi: 10.14202/vetworld.2018.1532-1538. Epub 2018 Nov 3.
The aim of the research was to evaluate the growth performance, to measure the amount of methane (CH) and carbon dioxide (CO) in calves' rumen, and to compare the obtained results between the control group (CoG) and the experimental group (Pre12) which received the additional supplement of the prebiotic inulin.
The research was conducted with ten Holstein Friesian ( L.) crossbreed calves with an average age of 33±6 days. Calves were split into two groups: 5 calves that were fed with the control non-supplemented diet (CoG) and 5 calves that were fed with the same diet further supplemented with 12 g of flour of Jerusalem artichoke ( L.) containing 6 g of prebiotic inulin per 0.5 kg of barley flour diet (Pre12). The duration of the experiment was 56 days. CH and CO were measured using cavity ringdown spectroscopy device Picarro G2508. The weight and samples from calves' rumen were evaluated 3 times during the experimental period - on the 1, 28, and 56 days. Samples were obtained by puncturing the calf rumen.
The weight gain (kg) during the whole experimental period was higher in the Pre12 (65.8±6.57) compared to CoG (36.8±7.98) calves (p<0.001). The daily weight gain was also increased in the Pre12 (1.2±0.12) than CoG (0.7±0.14) calves (p<0.001). There was no difference in the levels of CH and CO produced in the rumen of CoG and Pre12 calves (p>0.05).
The main results showed that the prebiotic inulin can promote weight gain in calves, without affecting the mean concentration of CH and CO in calves' rumen.
本研究旨在评估生长性能，测量犊牛瘤胃中甲烷（CH）和二氧化碳（CO）的含量，并比较对照组（CoG）和接受益生元菊粉额外补充剂的实验组（Pre12）之间的所得结果。
本研究使用了十头平均年龄为33±6天的荷斯坦弗里生（L.）杂交犊牛。犊牛被分为两组：5头饲喂未添加补充剂的对照日粮（CoG），5头饲喂相同日粮并进一步添加12克菊芋（L.）粉，每0.5千克大麦粉日粮中含有6克益生元菊粉（Pre12）。实验持续时间为56天。使用光腔衰荡光谱仪Picarro G2508测量CH和CO。在实验期间的第1、28和56天对犊牛瘤胃的重量和样本进行了3次评估。通过穿刺犊牛瘤胃获取样本。
在整个实验期间，Pre12组犊牛（65.8±6.57）的体重增加（千克）高于CoG组犊牛（36.8±7.98）（p<0.001）。Pre12组犊牛（1.2±0.12）的日增重也高于CoG组犊牛（0.7±0.14）（p<0.001）。CoG组和Pre12组犊牛瘤胃中产生的CH和CO水平没有差异（p>0.05）。
主要结果表明，益生元菊粉可促进犊牛体重增加，而不影响犊牛瘤胃中CH和CO的平均浓度。
