Publication Date
1985
Location
Kyoto Japan
Description
The objective of this study is to determine whether or not supplements e.g. concentrates, added at pasture modify the relationship between organic matter digestibility (OMD) of grazed herbage and faecal crude protein content (FCP). This would provide an answer whether or not the OMD of the fraction of herbage in the ration can be predicted from the FCP content of the faeces corresponding to the ration. We have utilized results of 2 digestibility measurements trials in which sheep were fed ad libitum herbage alone or supplemented either with barley (trial 1) or with a concentrate (trial 2). The supplementation leads to a decrease of herbage OMD and to an increase of the ration OMD, up to values of 76 p.100 in trial 1 and 80 p.100 in trial 2, respectively for the OMD of herbage fed alone. There is a positive and close relationship between PCP/ration and PCP/herbage alone in spite of an increase of FCP contnet in the case of the faeces "ration". When taking the various regrowth cycles altogether there is not a very close relationship between OMO-herbage alone/FCP-herbage alone and between OMD ration/FCP ration but the relationship is not significantly different between herbage alone and ration. One must confirm these results (which would allow prediction of OMD and intake of herbage from the same equation as that without concentrate) on a greater number of samples and with various kinds and levels of concentrate in the diet.
Citation
Chenost, M; Grenet, Elisabeth; Demarquilly, C; and Beranger, C, "Influence of Supplementation on Herbage Digestibility and on Faeces Characteristics with Sheep" (1985). IGC Proceedings (1985-2023). 19.
(URL: https://uknowledge.uky.edu/igc/1985/ses10/19)
Included in
Agricultural Science Commons, Agronomy and Crop Sciences Commons, Plant Biology Commons, Plant Pathology Commons, Soil Science Commons, Weed Science Commons
Influence of Supplementation on Herbage Digestibility and on Faeces Characteristics with Sheep
Kyoto Japan
The objective of this study is to determine whether or not supplements e.g. concentrates, added at pasture modify the relationship between organic matter digestibility (OMD) of grazed herbage and faecal crude protein content (FCP). This would provide an answer whether or not the OMD of the fraction of herbage in the ration can be predicted from the FCP content of the faeces corresponding to the ration. We have utilized results of 2 digestibility measurements trials in which sheep were fed ad libitum herbage alone or supplemented either with barley (trial 1) or with a concentrate (trial 2). The supplementation leads to a decrease of herbage OMD and to an increase of the ration OMD, up to values of 76 p.100 in trial 1 and 80 p.100 in trial 2, respectively for the OMD of herbage fed alone. There is a positive and close relationship between PCP/ration and PCP/herbage alone in spite of an increase of FCP contnet in the case of the faeces "ration". When taking the various regrowth cycles altogether there is not a very close relationship between OMO-herbage alone/FCP-herbage alone and between OMD ration/FCP ration but the relationship is not significantly different between herbage alone and ration. One must confirm these results (which would allow prediction of OMD and intake of herbage from the same equation as that without concentrate) on a greater number of samples and with various kinds and levels of concentrate in the diet.
