Zobrazeno 1 - 10
of 726
pro vyhledávání: '"R L Preston"'
Publikováno v:
J Anim Sci
Crossbred beef heifers [n = 96; initial shrunk BW=238 kg (SD 21.5)] were used in a completely randomized design to evaluate climatic effects on feedlot heifer growth and efficiency. The study was conducted from November 8, 1991 to May 11, 1992. Heife
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1ca5ee82ff5ecfd0e0e06a3f6053ec2
https://doi.org/10.1093/jas/skz122.401
https://doi.org/10.1093/jas/skz122.401
Autor:
Melendez, Justin1,2 (AUTHOR), Sung, Yun Ju3,4 (AUTHOR), Orr, Miranda5 (AUTHOR), Yoo, Andrew6 (AUTHOR), Schindler, Suzanne2 (AUTHOR), Cruchaga, Carlos2,3 (AUTHOR), Bateman, Randall1,2 (AUTHOR) batemanr@wustl.edu
Publikováno v:
Aging Cell. Sep2024, Vol. 23 Issue 9, p1-19. 19p.
Publikováno v:
Journal of Animal and Feed Sciences. 9:81-89
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d9c074309c146dde14a26473ca8c3c3d
https://doi.org/10.22358/jafs/68031/2000
https://doi.org/10.22358/jafs/68031/2000
Publikováno v:
Journal of Animal and Feed Sciences. 7:235-239
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d59156d53a4ff261af20bdebfe441ba2
https://doi.org/10.22358/jafs/69982/1998
https://doi.org/10.22358/jafs/69982/1998
Autor:
R L Preston, Qingxiang Meng
Publikováno v:
The Journal of General and Applied Microbiology. 44:35-41
Some factors influencing bacterial attachment to the rumen epithelium were studied in vitro using mixed rumen bacteria (upper- or lower-layer bacteria formed at bacterial sediment by centrifugation), isolated from steers fed a roughage diet, and rume
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2aec861f1eae998a0cfd95211f1ebd87
https://doi.org/10.2323/jgam.44.35
https://doi.org/10.2323/jgam.44.35
Autor:
R L Preston, Qingxiang Meng
Publikováno v:
The Journal of General and Applied Microbiology. 43:81-87
Mixed rumen bacteria, isolated by centrifugation from the rumen of steers fed a roughage (R) or concentrate (C) diet, were used to determine if lectins are present on rumen bacteria, based on hemagglutination (HA) and HA inhibition assays in vitro. R
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aad3c868c5b2c50db4e8663064eb262e
https://doi.org/10.2323/jgam.43.81
https://doi.org/10.2323/jgam.43.81
Autor:
L. L. Bennett, M. J. Williams, W. E. Kunkle, A. C. Hammond, M. F. Miller, D. D. Johnson, R L Preston
Publikováno v:
Journal of Animal Science. 73:1881-1887
Steers (n = 156) finished on rhizoma peanut (Arachis glabrata Benth.)-tropical grass pasture in Florida and slaughtered at Central Packing, Center Hill were compared with steers (n = 152) finished on a concentrate diet in Texas and slaughtered at Exc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b9507d4bb54a112438f697eb04a30368
https://doi.org/10.2527/1995.7371881x
https://doi.org/10.2527/1995.7371881x
Autor:
R L Preston, Thomas Richard Kasser, Clifton A. Baile, S J Bartle, J J Veenhuizen, Jeffrey Wilson Day
Publikováno v:
Journal of Animal Science. 73:1038-1047
Crossbred steers (n = 252, BW = 379 +/- 28 kg) were allotted to 42 pens in a 2 x 3 factorial arrangement of treatments: control or steroid implant (STR; estradiol benzoate+progesterone [three lighter blocks reimplanted on d 84] and trenbolone acetate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4a443bd8ae02d93f5cf309cf6eb896a
https://doi.org/10.2527/1995.7341038x
https://doi.org/10.2527/1995.7341038x
Publikováno v:
Journal of Animal Science. 73:622-627
Clinical investigations are studies designed to evaluate the effectiveness of a new animal drug. Expectations for documentation of events occurring during clinical investigations have been greatly increased. The Food and Drug Administration (FDA) thr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::61acb61c4bb248b54d6e290fd51f13dd
https://doi.org/10.2527/1995.732622x
https://doi.org/10.2527/1995.732622x
Publikováno v:
Journal of Animal Science. 72:1943-1953
The effects of roughage level (10, 20, or 30% roughage equivalent [RE]), roughage source (alfalfa vs cottonseed hulls), roughage regimen (constant RE vs 2% RE during the mid-finishing period), tallow level (1.2 vs 4.6%), and steer type (British cross
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4528969bc1488f1f976870c6d0c8af69
https://doi.org/10.2527/1994.7281943x
https://doi.org/10.2527/1994.7281943x