Sheep    drug        diet    delivery    fintake

                1    saline       C1       IV         0.180 
                2    saline       C1       IV         0.293 
                3    saline       A        IV         0.216 
                4    saline       A        IV         0.167 
                5    saline       C2       IV         0.247 
                6    saline       C2       IV         0.161 
                7    saline       C1       ICV        0.199 
                8    saline       C1       ICV        0.154 
                9    saline       A        ICV        0.243 
               10    saline       A        ICV        0.276 
               11    saline       C2       ICV        0.207 
               12    saline       C2       ICV        0.176 
               13    orexin-B     C1       IV         0.213 
               14    orexin-B     C1       IV         0.038 
               15    orexin-B     A        IV         0.112 
               16    orexin-B     A        IV         0.126 
               17    orexin-B     C2       IV         0.137 
               18    orexin-B     C2       IV         0.087 
               19    orexin-B     C1       ICV        0.400 
               20    orexin-B     C1       ICV        0.272 
               21    orexin-B     A        ICV        0.344 
               22    orexin-B     A        ICV        0.344 
               23    orexin-B     C2       ICV        0.343 
               24    orexin-B     C2       ICV        0.243