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Journal of Dairy Science Vol. 71 No. 3 762-772
© 1988 by American Dairy Science Association ®
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Chickpeas as a Protein and Energy Supplement for High Producing Dairy Cows1

D. L. Hadsell2 and J. L. Sommerfeldt3

Dairy Science Department, South Dakota State University, Brookings 57007-0647

ABSTRACT

Thirty lactating Holstein cows were randomly assigned to one of three diets to evaluate chickpeas as dietary supplement from wk 4 to 16 postpartum. Diets contained chickpeas at 0, 50, and 100% of the concentrate DM 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 DM. Milk yield (34.5, 35.1, 35.7 kg/d) was higher for cows fed 100% chickpeas than 0% chickpeas. Milk medium-chain (C12 to C16) fatty acids (53.8, 48.6, 45.5 g/100 g fat), milk long-chain (C18) fatty acids (29.4, 35.0, 38.8 g/100 g fat), and milk protein (3.20, 3.09, 2.96%) differed for all three diets. Ruminal acetate:propionate (2.0, 2.0, 2.4) was highest for cows fed 100% chickpeas. Total essential amino acid concentration in blood serum (105.3, 95.9, 89.4 µmol/dl) was higher for cows fed 0% chickpeas than 100% chickpeas. Lactational responses are discussed with respect to increased intake of fat, increased degradability of dietary protein, and decreased plasma essential amino acids.

FOOTNOTES

1 Published with the approval of the director of the South Dakota Experiment Station as Publication Number 2263 of the Journal Series.

2 Dairy and Animal Science Department, Pennyslvania State University, 302 Henning Building, University Park 16802.

3 Nutrition Professionals, 1150 Rainbow Dr., Merrill, WI 54452.






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Copyright © 1988 by the American Dairy Science Association ®.