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Animal Sciences

South Dakota State University

Electronic Theses and Dissertations

1987

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Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell Jan 1987

Chickpeas As A Protein And Energy Supplement For High Producing Dairy Cows, Darryl Lynn Hadsell

Electronic Theses and Dissertations

Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as a dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100 % of the concentrate dry matter in place of corn and soybean meal. Total mixed diets, fed individually, contained concentrate corn silage and alfalfa hay at 52, 32, and 16 % of the dry matter. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100 % chickpeas than 0 % chickpeas. Fat (3.06, 3.09, 3.28 %) was highest for cows fed 100 % chickpeas. Milk …


Growth And Proteolytic Activity Of Selected Psychrotrophic Bacteria In Whole Milk And Whole Milk Retentate, Ravinder Reddy Jan 1987

Growth And Proteolytic Activity Of Selected Psychrotrophic Bacteria In Whole Milk And Whole Milk Retentate, Ravinder Reddy

Electronic Theses and Dissertations

In the last twenty years a number of membrane separation processes have evolved from laboratory scale, through pilot plant investigation, to full scale production units. One such process, ultrafiltration, has been found particularly useful in the dairy industry. Ultrafiltration uses porous polymeric membranes to separate molecules, principally on the basis of their molecular weight. In milk, fat, protein and associated substances are retained on the membrane. Permeate, which passes through the membrane contains mainly water, lactose and other low molecular weight substances. There is interest in ultrafiltration of milk because of it is potential importance in saving costs to both …