Zobrazeno 1 - 10
of 65
pro vyhledávání: '"C.W. Arave"'
Publikováno v:
Journal of Dairy Science. 77:3051-3057
Concentrated separator by-product was fed to cattle to determine TDN, milk production, and feed preference. The TDN content of concentrated separator by-product was determined using a substitution method involving a basal diet of alfalfa and grass ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::512161ee738f2eb1e9fdb0fabfddbc85
https://doi.org/10.3168/jds.s0022-0302(94)77247-7
https://doi.org/10.3168/jds.s0022-0302(94)77247-7
Autor:
D. Purcell, C.W. Arave
Publikováno v:
Applied Animal Behaviour Science. 31:147-156
Seven pairs of monozygous (MZ) twin heifer calves were assigned at birth to either isolation or group rearing. The isolation effects on feed intake, social development, survival activity, and learning ability were studied. There were no differences f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c504f23b6f2f886f1414a3269389a75b
https://doi.org/10.1016/0168-1591(91)90001-e
https://doi.org/10.1016/0168-1591(91)90001-e
Publikováno v:
Journal of Dairy Science. 73:129-134
Forty lactating Holstein cows were fed 0, 5.9, 11.7, or 17.4% processed poultry excreta in total mixed rations. The effect of treatment was evaluated on feed intake, BW, milk yield, and composition. Processed poultry excreta appeared to be well accep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0538ad34266e9bd6dd8346e3505a782a
https://doi.org/10.3168/jds.s0022-0302(90)78655-9
https://doi.org/10.3168/jds.s0022-0302(90)78655-9
Publikováno v:
Journal of dairy science. 77(11)
Data were from observations of behavior of 99 lactating Holstein cows during implantations with bST. Implantations were at 14-d intervals during 1 yr. Cows on one study received 0, 120, 240, or 360 mg; cows on a second study received 0, 160, or 320 m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d5152f8c742c3d376f7cefee560c7e17
https://pubmed.ncbi.nlm.nih.gov/7814713
https://pubmed.ncbi.nlm.nih.gov/7814713
Publikováno v:
Journal of dairy science. 75(12)
Holstein (n = 323) calves in the herds of four experiment stations were reared individually (control) or in isolation to 70 d of age to determine whether isolation affected growth, behavior, and first lactation yield. Treatment differences were not o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbe04141e33b3e8a5b83ea03c5b048a2
https://pubmed.ncbi.nlm.nih.gov/1474208
https://pubmed.ncbi.nlm.nih.gov/1474208
Publikováno v:
Journal of Dairy Science. 57:1497-1501
Space was reduced from 9.3 to 2.3m 2 /cow during wk 2 and 4 for a group of 17 cows in a 4 wk study. Dominance rank was estimated from observation during 9 previous and 4 current wk. Leucocytes were determined from weekly quarter samples. The lot was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b8e28e335fcf784d7e87daade235a286
https://doi.org/10.3168/jds.s0022-0302(74)85094-0
https://doi.org/10.3168/jds.s0022-0302(74)85094-0
Publikováno v:
Journal of Dairy Science. 58:423-427
Serum cholesterol of dairy cattle, particularly when measured on animals of the same approximate age, is a heritable trait. Heritabilities were .50 for first lactation cows and .19 for heifers from 2 to 22 mo of age. Serum cholesterol increases with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bb55161a89b3d098a43244a4bb8b86d9
https://doi.org/10.3168/jds.s0022-0302(75)84582-6
https://doi.org/10.3168/jds.s0022-0302(75)84582-6
Publikováno v:
Journal of Dairy Science. 68:923-929
Sixty-seven heifer calves were assigned at birth to one of four rearing treatments: 1) groups of six, 2) individual hutch, 3) isolation, and 4) isolation with handling (10min daily interaction with calf feeder). Calves were on the same diet and excep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a79924ba67fe43a5b0121376fa5e2b3d
https://doi.org/10.3168/jds.s0022-0302(85)80910-3
https://doi.org/10.3168/jds.s0022-0302(85)80910-3
Publikováno v:
Journal of Dairy Science. 70:2585-2598
First lactation milk yield and percentages of fat, solids-not-fat, and protein were analyzed to determine the possible relationships between 14 polymorphic loci and production in Holstein cows. The polymorphic systems examined were blood groups (A, B
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f30d15efabf561178c682119906cefba
https://doi.org/10.3168/jds.s0022-0302(87)80328-4
https://doi.org/10.3168/jds.s0022-0302(87)80328-4
Autor:
M. J. Anderson, C.W. Arave
Publikováno v:
Journal of Dairy Science. 62:1104-1107
Feed intakes, weight changes, and behavioral activity of heifers on either an electronically controlled or tie-stall feeding system were compared in two trials with 16 heifers in each trial. Eight heifers per trial were fed individually by one of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06bc120588d26a1c73f721eafd19ac6d
https://doi.org/10.3168/jds.s0022-0302(79)83382-2
https://doi.org/10.3168/jds.s0022-0302(79)83382-2