On-farm pasteurizers and warmers for use in the dairy industry and parts therefor; Livestock feeders in the nature of recyclable flexible plastic pouches sold empty for holding colostrum; flexible feed tubes for feeding livestock through an attached nipple, specially adapted to use with livestock feeders in the nature of flexible plastic pouches sold empty for holding colostrum; nipple grip assembly tool for attaching and detaching plastic nipples from livestock feeding tubes specially adapted to use with livestock feeders in the nature of flexible plastic pouches sold empty for holding colostrum; nipple attachments for flexible feed tubes, specially adapted to use with livestock feeders in the nature of flexible plastic pouches sold empty for holding colostrum; Nutritional and dietary supplements; nutritional and dietary supplements for animals; nutritional and dietary supplements for cattle, dairy cattle; nutritional supplements for calves, namely, bovine colostrum; powder electrolytes for veterinary purposes