Gralak M A, Mahmood S, Barej W
Department of Animal Physiology, Faculty of Veterinary Medicine, Warsaw Agricultural University, Poland.
Arch Tierernahr. 1994;47(1):63-74. doi: 10.1080/17450399409381794.
Wheat straw (WS) and triticale straw (TS) were treated with 2- and 4%-NaOH and/or 300- and 600-kGy radiation doses (accelerated electrons) for improvement of the nutritional value of these feeds. Beside the chemical composition of straws, the nylon bag rumen disappearance of dry matter and crude fibre was estimated. NaOH did not influence the chemical composition of straws, while irradiation significantly reduced the level of crude fibre (CF), neutral detergent fibre (NDF) and acid detergent fibre (ADF) proportionally to the dose. The level of nitrogen free extractives (NFE) and alpha-linked glucose polymers pronouncedly increased in the radiated straws. NaOH treatment raised potential rumen degradability of DM and irradiation did so in the case of potential as well as effective degradability. It was not able to prove the summarized influence of both treatments on DM and CF rumen degradability of the straws. The dynamics of the rumen disappearance of DM was different in the straws.
为提高小麦秸秆（WS）和小黑麦秸秆（TS）作为饲料的营养价值，分别用2%和4%的氢氧化钠以及300千戈瑞和600千戈瑞的辐射剂量（加速电子）对其进行处理。除了秸秆的化学成分外，还测定了干物质和粗纤维在尼龙袋中的瘤胃消失率。氢氧化钠对秸秆的化学成分没有影响，而辐射显著降低了粗纤维（CF）、中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）的含量，且降低程度与剂量成正比。辐射秸秆中无氮浸出物（NFE）和α-连接葡萄糖聚合物的含量显著增加。氢氧化钠处理提高了干物质的潜在瘤胃降解率，辐射处理对干物质的潜在降解率和有效降解率均有提高作用。未能证明两种处理对秸秆干物质和粗纤维瘤胃降解率的综合影响。不同秸秆中干物质瘤胃消失的动态变化有所不同。
