Yazar
Roger Garrett Sprowls
3 cilt bulundu.
Cilt sonuçları
Some effects of various levels and ratios of calcium and phosphorus in the rations of dairy cows
Roger Garrett Sprowls · Yayınevi bilinmiyor
84 sayfa · 1956
Feeding and feeds / Dairy cattle / Calcium / Phosphorus
Final report of the livestock phase of the nutritional and management studies on Sauvie Island, Oregon
Roger Garrett Sprowls · Agricultural Experiment Station, Oregon State College
76 sayfa · 1955
Dairy cattle / Nutrition / Productivity