THE endogenous fæcal excretion of calcium and magnesium is derived from the various digestive secretions and the desquamated epithelial cells of the alimentary tract. The relative proportions of these ...

Picture 24: The Welsh Mountain breed are said to have a digestive tract that extracts nourishment from fodder more efficiently than other breeds They have succeeded over the centuries in eking out an ...

Several species of Astragalus that contain organic nitro compounds were tested for toxicity to sheep and 1-week-old chicks. Methemoglobin analyses in sheep indicated that nitro compounds in A.