caa a22 4500 386320446 CHVBK 20180307111624.0 cr unu---uuuuu 161130e198812 xx s 000 0 eng 10.1017/S0003356100003585 doi S0003356100003585 pii (NATIONALLICENCE)cambridge-10.1017/S0003356100003585 A two-pool model of tritiated water kinetics to predict body composition in unfasted lactating goats [Elektronische Daten] A two-pool model of tritiated water kinetics was investigated as a means of partitioning total body water into empty body water and gut water in 17 lactating goats. Empty body water, gut water and total body water were of a similar magnitude to, and highly correlated with, a rapidly equilibrating tritiated water pool, a more slowly equilibrating pool and the sum of these two pools, respectively. Empty body fat was poorly correlated with both live weight and empty body weight (R2 = 0·42 and 0·51, respectively). However, there was a strong inverse relationship between the water and fat contents of the empty body. Consequently, empty body fat was accurately predicted by a multiple regression equation which included both empty body weight and empty body water as independent variables (R2 = 0·97). Substitution of these variables with estimates derived from tritiated water kinetics still resulted in a high correlation (R2 = 0·88). Tritiated water kinetics offered little improvement over live weight alone in the prediction of empty body protein, empty body ash or fat-free empty body. Copyright © British Society of Animal Science 1988 Dunshea F. R. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia Bell A. W. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia Chandler K. D. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia Trigg T. E. Animal and Irrigated Pastures Research Institute, Kyabram, Victoria 3620, Australia Animal Production Cambridge University Press 47/3(1988-12), 435-445 0003-3561 47:3<435 1988 47 ASC https://doi.org/10.1017/S0003356100003585 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0003356100003585 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dunshea F. R. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia NATIONALLICENCE 700 1- Bell A. W. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia NATIONALLICENCE 700 1- Chandler K. D. School of Agriculture, La Trobe University, Bundoora, Victoria 3083, Australia NATIONALLICENCE 700 1- Trigg T. E. Animal and Irrigated Pastures Research Institute, Kyabram, Victoria 3620, Australia NATIONALLICENCE 773 0- Animal Production Cambridge University Press 47/3(1988-12), 435-445 0003-3561 47:3<435 1988 47 ASC CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge