Document Type
Thesis - Open Access
Award Date
1987
Degree Name
Master of Science (MS)
Department
Dairy Science
First Advisor
Joel Sommerfeldt
Abstract
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 medium (C12-C16 ) chain fatty acids ( 53.8, 48.6, 45.5 g/l00 g fat) and long chain (C18 ) fatty acids (29.4, 35.0, 38.8 g/l00 g fat) and milk protein (3.20, 3.09, 2.96 %) differed for all three diets. Ruminal acetate: propionate ratio {2.03, 1.98, 2.39) was highest for cows fed 100 % chickpeas. Total serum essential amino acid concentration (105.3, 95.9, 89.4 umoles/dl) was higher for cows fed 0 % chickpeas than 100 % chickpeas. Lactational responses are discussed with respect to increased intake of fat, increased dietary protein degradablility, and decreased plasma essential amino acids.
Library of Congress Subject Headings
Chickpea -- Nutrition
Dairy cattle -- Feeding and feeds
Description
Includes bibliographical references (pages 74-94)
Format
application/pdf
Number of Pages
103
Publisher
South Dakota State University
Rights
In Copyright - Non-Commercial Use Permitted
http://rightsstatements.org/vocab/InC-NC/1.0/
Recommended Citation
Hadsell, Darryl Lynn, "Chickpeas as a protein and energy supplement for high producing dairy cows" (1987). Electronic Theses and Dissertations. 1327.
https://openprairie.sdstate.edu/etd/1327