Subject
- Beef cattle18
- Cattle -- Breeding6
- Sheep6
- Sheep -- Breeding6
- Cattle -- Feeding and feeds4
- Genetics -- Research4
- Growth4
- Radiation -- Physiological effect4
- Bulls3
- Mice3
- Rabbits3
- Testosterone3
- Beef cattle -- Feeding and feeds2
- Blood -- Analysis2
- Blood proteins2
- Gonadotropin2
- Hormones, Sex2
- Pituitary gland2
- Protein nitrogen2
- Sheep -- Oregon2