首页> 外文期刊>Malaysian Journal of Animal Science >Effect of Bambara nut and cowpea intercropped with maize at different times on nutritive quality of maize for ruminant feeding
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Effect of Bambara nut and cowpea intercropped with maize at different times on nutritive quality of maize for ruminant feeding

机译:班巴拉坚果和pea豆间作玉米对反刍饲喂玉米营养品质的影响。

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Effects of Bambara nut and cowpea planted with maize at different times on nutritive quality of maize forage were investigated. The study was laid out in a Completely Randomized Design and the treatments were combination of crop types (Bambara nut-maize (MB) and Cowpea-maize (MC) and planting times of legumes (2 wks before planting maize, 2WBPM and 2 wks after planting maize, 2WAPM), and sole maize (as control). An experimental field measuring 19 m × 11 m was divided into 3 replicates; each replicate was sub-divided into 5 plots of dimension 3 m2 each, with 1 m and 2 m inter-plots and inter-blocks spacing respectively. Maize forage samples were harvested on each plot at 10 wks after planting, oven-dried, milled and analyzed to evaluate the chemical composition, mineral composition, in vitro gas production and post-incubation characteristics. Results revealed significant differences (P<0.05) among treatments with the highest (95.00%) and least DM (92.12%) values were recorded for MB 2WBPM and MC 2WAPM, respectively. CP values ranged from 10.36% in MB 2WBPM to 15.67% in MC 2WBPM but not significantly different from 14.19 % recorded for sole maize. Ash ranged from 7.00% in MB 2WAPM to 10.00% in sole maize. MC 2WBPM and sole maize had the highest (50.63%) and least (38.40%) in ADF content (P<0.05). ADL value (7.25%) observed in MB 2WBPM was the highest, compared to the least (5.00%) in sole maize. Sole maize recorded the least (40.40%) and highest (25.91%) cellulose and hemicellulose contents, respectively while MC 2WAPM had the highest (50.88%) and lowest (15.80%) values for cellulose and hemicellulose, respectively. Ca content (4.55g/kg) of MB 2WAPM was lower than the other treatments. P content ranged from 3.54 g/kg in MB 2WAPM to 12.02 g/kg in MC 2WAPM. Gas production rates only varied (P<0.05) at the 3rd, 6th, 24th and 48th hours of incubation. MB 2WBPM yielded highest values of short chain fatty acids (0.09 μmol) and metabolizable energy (3.08 MJ/kg) while MB 2WAPM recorded the lowest values (0.01 μmol and 2.57 MJ/kg) for the same parameters. MC 2WAPM and MB 2WAPM produced highest values of OMD (31.60 %) and DMD (37.50 %), respectively. In conclusion, sole maize had desirable CP, Ca, P with least fibre constituents. OMD and DMD of the sole maize were not significantly different from most of the legume mixtures. Better SCFA and ME also make MB 2WBPM treatment desirable.
机译:研究了不同时间种植玉米的班巴拉坚果和cow豆对玉米饲草营养品质的影响。该研究采用完全随机设计进行,处理方法是结合作物类型(Bambara坚果玉米(MB)和Cow豆玉米(MC))和豆类的种植时间(种植玉米前2 wks,2WBPM和种植后2 wks种植玉米(2WAPM)和唯一玉米(作为对照),将一个19 m×11 m的实验田分为3个重复;每个重复被细分为5个面积为3 m2的样地,分别为1 m和2 m种植后10 wks在每个样地上收获玉米草料样品,进行烘箱干燥,碾磨和分析,以评估其化学成分,矿物质成分,体外产气量和孵化后特性。结果显示,MB 2WBPM和MC 2WAPM的最高值(95.00%)和最低DM(92.12%)的处理之间存在显着差异(P <0.05),CP值范围从MB 2WBPM的10.36%到MB 2WBPM的15.67%。 MC 2WBPM,但无显着差异唯一玉米记录的om为14.19%。灰分从MB 2WAPM的7.00%到唯一玉米的10.00%不等。 MC 2WBPM和单一玉米的ADF含量最高(50.63%),最低(38.40%)(P <0.05)。在MB 2WBPM中观察到的ADL值最高(7.25%),而在单独玉米中最低(5.00%)。玉米的纤维素和半纤维素含量分别最低(40.40%)和最高(25.91%),而MC 2WAPM的纤维素和半纤维素分别最高(50.88%)和最低(15.80%)。 MB 2WAPM的钙含量(4.55g / kg)低于其他处理。 P含量范围从MB 2WAPM中的3.54 g / kg到MC 2WAPM中的12.02 g / kg。在孵化的第3、6、24和48小时,产气率仅发生变化(P <0.05)。 MB 2WBPM产生最高值的短链脂肪酸(0.09μmol)和可代谢能量(3.08 MJ / kg),而MB 2WAPM记录到最低值(0.01μmol和2.57 MJ / kg)。 MC 2WAPM和MB 2WAPM分别产生了OMD(31.60%)和DMD(37.50%)的最高值。总之,唯一的玉米具有理想的CP,Ca,P和最少的纤维成分。唯一玉米的OMD和DMD与大多数豆类混合物没有显着差异。更好的SCFA和ME也使MB 2WBPM处理成为可取的。

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