ScienceJohn Michels (Journalist) 1946 |
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Стр. 308
... production by utilizing mostly 1 The dairy cows in the United States , Great Britain , Can- ada , and New Zealand produce , on the average , 4,500 pounds of milk a year . The dairy cattle in Denmark produce , on the average , about ...
... production by utilizing mostly 1 The dairy cows in the United States , Great Britain , Can- ada , and New Zealand produce , on the average , 4,500 pounds of milk a year . The dairy cattle in Denmark produce , on the average , about ...
Стр. 310
... production and the level of solids in the milk , especially fat and protein , decline stead- ily with rising temperature above 70 ° F. The growth rate in all domestic animals declines with rising tem- perature above 70 ° F. , and , of ...
... production and the level of solids in the milk , especially fat and protein , decline stead- ily with rising temperature above 70 ° F. The growth rate in all domestic animals declines with rising tem- perature above 70 ° F. , and , of ...
Стр. 445
... Production Research and Development of the War Production Board , a chemi- cally known or " synthetic " medium was developed by this laboratory for the production of penicillin . The advantages of such a medium are : ( 1 ) it contains ...
... Production Research and Development of the War Production Board , a chemi- cally known or " synthetic " medium was developed by this laboratory for the production of penicillin . The advantages of such a medium are : ( 1 ) it contains ...
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