caa a22 4500 386320632 CHVBK 20180307111625.0 cr unu---uuuuu 161130e198802 xx s 000 0 eng 10.1017/S000335610000307X doi S000335610000307X pii (NATIONALLICENCE)cambridge-10.1017/S000335610000307X Prediction of intake by cattle from degradation characteristics of roughages [Elektronische Daten] Five different straws consisting of two varieties of winter barley, two varieties of spring barley and one variety of winter wheat were chosen due to differences in degradation characteristics determined by using nylon bags incubated in the rumen of cattle and describing the straw using the equation: p = a + b (1 - e-ct). To increase variation in degradability, batches of the same straws were also treated with anhydrous ammonia in a sealed oven. The straws were subsequently offered ad libitum to groups of steers given a daily supplement of 1·5 kg concentrate and untreated straws were supplemented with urea. The dry-matter intake (DMI) of the straws varied from 3·4 to 5·7 kg/day, the digestible DMI from 1·4 to 3·5 kg/day and growth rate from 106 to 608 g/day. By using multiple regression of a, b, c from the exponential equations characterizing degradability of the straw, the correlation coefficients with DMI, digestible DMI and growth rate were 0·88, 0·96 and 0·95 respectively. Copyright © British Society of Animal Science 1988 Ørskov E. R. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB Reid G. W. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB Kay M. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB Animal Production Cambridge University Press 46/1(1988-02), 29-34 0003-3561 46:1<29 1988 46 ASC https://doi.org/10.1017/S000335610000307X text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S000335610000307X text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ørskov E. R. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB NATIONALLICENCE 700 1- Reid G. W. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB NATIONALLICENCE 700 1- Kay M. Aberdeen Straw Group, Rowett Research Institute, Bucksburn, Aberdeen AB2 9SB NATIONALLICENCE 773 0- Animal Production Cambridge University Press 46/1(1988-02), 29-34 0003-3561 46:1<29 1988 46 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge