Abstract
The digestibility of the cellulose in seven grass hays and six legume hays was determined by an in vitro rumen technique using inocula obtained from a steer, and in digestion trials with sheep. No significant difference was observed between results obtained in vitro and in vivo with grass hays, but, in some of the legume hays, cellulose digestibilities, as measured by the two methods, were significantly different. Results obtained with the in vitro technique showed good reproducibility and, in general, variances were less than those calculated for the corresponding sheep trial data. In an experiment in which different forages were fed to a steer used as a source of inoculum, the digestibility in vitro of the cellulose in these forages was not affected by the type of forage fed the steer. Little difference was noted when cellulose digestion was measured using strained rumen juice, a phosphate buffer extract of pressed rumen contents or resuspended ruminal microorganisms as inoculum. Possible use of the in vitro technique as a tool in the evaluation of the nutritive value of forages is indicated.
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Claims 6
Claim · model-written summary
For grass hays, in vitro and in vivo cellulose digestion results showed no significant difference.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e1“No significant difference was observed between results obtained in vitro and in vivo with grass hays”
Claim · model-written summary
For some legume hays, cellulose digestibilities differed significantly between the in vitro and in vivo methods.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e2“in some of the legume hays, cellulose digestibilities, as measured by the two methods, were significantly different”
Claim · model-written summary
The in vitro technique showed good reproducibility, with variances generally less than those of the corresponding sheep trial data.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e3“Results obtained with the in vitro technique showed good reproducibility and, in general, variances were less than those calculated for the corresponding sheep trial data”
Claim · model-written summary
The in vitro cellulose digestibility of forages was not affected by the type of forage fed to the inoculum steer.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e4“In an experiment in which different forages were fed to a steer used as a source of inoculum, the digestibility in vitro of the cellulose in these forages was not affected by the type of forage fed the steer”
Claim · model-written summary
Little difference in in vitro cellulose digestion was found among rumen juice, buffer extract and resuspended microorganism inocula.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e5“Little difference was noted when cellulose digestion was measured using strained rumen juice, a phosphate buffer extract of pressed rumen contents or resuspended ruminal microorganisms as inoculum”
Claim · model-written summary
The in vitro technique is indicated as a possible tool for evaluating the nutritive value of forages.
Verbatim
t0“Digestibility of Forage Cellulose in Ruminants”
e6“Possible use of the in vitro technique as a tool in the evaluation of the nutritive value of forages is indicated”