Zobrazeno 1 - 10
of 22
pro vyhledávání: '"D F, Parrett"'
Autor:
D. F. Parrett, J. M. Dahlquist, T. G. Nash, Larry L. Berger, Daniel W Shike, Dan B Faulkner, K. R. Retallick
Publikováno v:
The Professional Animal Scientist. 26:474-483
Angus × Simmental heifers (n = 192; BW = 253 ± 2 kg) were utilized to evaluate the effects of source of energy on performance, ultrasonic, carcass, and economic characteristics of early-weaned heifers. Treatments investigated were 1) high starch (H
Publikováno v:
The Professional Animal Scientist. 25:132-138
Two experiments were conducted to evaluate the effects of corn gluten feed (CGF) or dry distillers grains with solubles (DDGS) in limit-fed diets on cow performance, lactation, nutrient output, and reproduction. Cows were maintained in concrete lots
Publikováno v:
The Professional Animal Scientist. 23:325-332
Spring-born, Angus × Simmental steers (n = 168) were randomly assigned to 1 of 4 treatments: early wean with program-fed high concentrate (EWP), normal wean with creep (NWC), normal wean with fiber creep (NWF), and normal wean with no creep (CON). S
Publikováno v:
The Professional Animal Scientist. 17:295-302
Financial, economic, and biological data from cow-calf producers participating in the Illinois and Iowa Standardized Performance Analysis programs were analyzed. Data were collected from 1996 to 1999; each herd-year represented one observation. The d
Autor:
T. R. Carr, B. R. Skaar, J. J. Kiser, R. G. Kauffman, R. L. Russell, R. W. Mandigo, D. F. Parrett
Publikováno v:
Journal of animal science. 91(9)
A century ago students were exposed to livestock judging and meat judging, though each was taught as an independent entity. Fifty years ago universities started combining subjects involving the evaluation process, whether characteristics involved tra
Publikováno v:
The Professional Animal Scientist. 12:118-123
Cow-calf performance and diet composition were compared between established alfalfa and tall fescue-red clover pastures in a rotational grazing system. Eighty cow-calf pairs were randomly allotted to the two dietary mixtures with three replications.
Autor:
D. D. Buskirk, Larry L. Berger, Neal R Merchen, D. F. Parrett, Dan B Faulkner, F. A. Ireland, K. E. Tjardes
Publikováno v:
Journal of animal science. 76(1)
Trial 1, 135 crossbred cows with calves were used to compare limit-fed corn-hay diets with ad libitum hay and cracked with whole corn in limit-fed diets. Diets were to supply similar TDN intakes. Cow-calf pairs were fed treatment diets from 24 h afte
Publikováno v:
Journal of animal science. 72(5)
To evaluate limiting the number of days that calves are creep fed, 84 crossbred cows (frame score 4) nursing steer calves were randomly assigned to three replicates over 2 yr to receive one of four lengths of creep feeding (0, 28, 56, or 84 d) for co
Publikováno v:
American journal of veterinary research. 55(4)
At initiation of a 140-day postweaning weight gain test, Angus bulls were assigned in equal numbers (n = 5) to 1 of 3 treatment groups to determine effects of implantation with zeranol, an estrogenic growth promotant, on selected reproductive charact
Publikováno v:
Journal of Animal Science. 78:2862
The objective of this study was to determine the effects of the Halothane (N) and Rendement Napole (RN) genes on carcass and meat quality characteristics in pigs. Halothane and RN carrier (Nn/RN- rn+) Hampshire boars (n = 4) were mated to dams that w