Zobrazeno 1 - 10
of 186
pro vyhledávání: '"H.D. Eaton"'
Publikováno v:
Journal of Dairy Science. 50:1486-1494
Ventriculocisternal perfusion (VCP) was used to determine the rates of bulk absorption (inulin clearance, C In ) and formation ( V ˙ f ) of cerebrospinal fluid (CSF) in nine hypovitaminotic A and ten vitamin A adequate calves. The average intraventr
Publikováno v:
Journal of Dairy Science. 43:1003-1006
Publikováno v:
Journal of Dairy Science. 30:787-794
Summary The effects of supplementing the dry cow ration with 100,000 I.U. of vitamin D in the form of irradiated yeast once daily for 8 weeks prepartum at two different seasons of the year have been studied. The following results were obtained: 1.An
Publikováno v:
Journal of Dairy Science. 37:276-283
Summary Twelve mastitis-free first calf heifers, nine Holsteins and three Jerseys, after a 4-week standardizing period, were randomly assigned to be milked for 40 weeks at a vacuum level of 10, 13, or 17 in. of mercury. Halves of udders were assigned
Publikováno v:
Journal of Dairy Science. 33:315-323
Summary The effect of vitamin A from prenatal storage and from ingestion of colostrum was studied from birth to 28 days of age in 28 dairy calves. One half of these calves were from dams receiving only a basal ration and one half were from dams recei
Publikováno v:
Journal of Dairy Science. 34:124-135
Publikováno v:
Journal of Dairy Science. 41:129-142
Summary The lactation response to the substitution of 10lb. alfalfa with 7.0 or 5.7lb. corn based, respectively, on the TDN or NE system was studied, in a double-reversal trial, with 24 cows previously fed equivalent therms NE per unit of live weight
Publikováno v:
Journal of Dairy Science. 32:919-926
Summary The effect of prepartum milking for 10 days prior to the calculated parturition date on the carotene, vitamin A and proximate composition of colostrum has been studied in 44 cows. In addition, the changes occurring in the carotene and vitamin
Autor:
H.D. Eaton, G.E. Frick
Publikováno v:
Journal of Dairy Science. 31:353-359
Summary The residual method was used in order to determine the contribution of pasture to total feed supply for a sample of 1,200 Holstein cows from 10 D.H.I.A. farms in Connecticut. One of Brody's measures of dairy merit was combined with the input-
Autor:
H.D. Eaton, J.E. Avampato
Publikováno v:
Journal of Dairy Science. 36:783-793
Summary Calf plasma containing “low” and “higher” amounts of carotenoids was subjected to the following treatments: saponification without separation of carotene and vitamin A; saponification followed by separation of carotene by precipitatio