Zobrazeno 1 - 10
of 53
pro vyhledávání: '"D.L. Bath"'
Publikováno v:
Journal of Dairy Science. 77:343-348
The objective of this study was to examine the effects of an Aspergillus oryzae extract in combination with a yeast culture (Saccharomyces cerevisiae) on milk yield and composition, rectal temperatures, and rumen parameters in a commercial dairy herd
Publikováno v:
Journal of Dairy Science. 76:1484-1489
The objective of this study was to examine the effects of an Aspergillus oryzae extract on milk production and composition, rectal temperatures, and rumen metabolites in a commercial dairy herd. Holsteins (110 cows with two or more lactations) in mid
Autor:
G.E. Higginbotham, D.L. Bath
Publikováno v:
Journal of Dairy Science. 76:615-620
Direct-fed microbials for calves were evaluated at two commercial dairy locations. Trial I (9 wk) compared nonviable Lactobacillus acidophilus (6ml) with untreated controls. Holstein calves (n = 116) were assigned randomly to treatment within 24h of
Publikováno v:
Journal of Dairy Science. 74:202-210
Effects of dietary niacin and fat on milk composition, particularly milk N, were evaluated using eight lactating Holstein cows in a replicated 4 x 4 Latin square design, using primiparous and multiparous cow groups. Complete mixed diets contained 2 o
Autor:
J.M. White, G.A. Muck, C.F. Foreman, D.L. Bath, F.W. Bodyfeld, W.F. Collins, G.H. Schmidt, D.B. Emmons, E.W. Custer, R.W. Touchberry
Publikováno v:
Journal of Dairy Science. 61:516-520
The Nominating Committees of the American Dairy Science Association have selected the following slate for national officers: for Vice President of ADSA from the Production Division, D. L. Bath, California, and C. F. Foreman, Iowa; for Director of ADS
Autor:
D.L. Bath, Loren F. Bennett
Publikováno v:
Journal of Dairy Science. 63:1379-1389
Development, testing, and implementation of a computerized linear program for dairy rations is described. National Research Council feeding standards were integrated with functions of milk production and feed intake synthesized from various sources t
Autor:
D.L. Bath
Publikováno v:
Journal of Dairy Science. 58:226-230
Use of computers to formulate least-cost rations has increased greatly in recent years, and many commercial feed companies routinely use linear programming methods in establishing ingredient formulas for their concentrate mixes. Efficacy of computer-
Publikováno v:
Journal of Dairy Science. 64:1230-1249
Major developments characterized changes in feeding and feeding systems during the past 25 yr. The amount of concentrate fed nearly tripled, which was impossible to achieve during twice daily milking in parlors. Herd sizes increased, milk production
Autor:
D.L. Bath
Publikováno v:
Journal of Dairy Science. 65:450-453
Increasing the amount of grain and other concentrates and reducing the amount of hay and other roughages in a dairy cattle ration changes the normal pattern of ruminal fermentation, resulting in production of less acetic acid and more propionic acid
Publikováno v:
Journal of Dairy Science. 57:198-204
Voluntary hay wafer intake of 20 first-lactation Holstein cows fed 20, 35, 50, 65, or 80% of their estimated net energy requirements as a concentrate mix was measured during a 36-wk feeding trial. Mean hay wafer dry matter intake declined .78kg for e