Zobrazeno 1 - 10
of 17
pro vyhledávání: '"L. E. Ousterhout"'
Autor:
Lawrence R. Berg, L. E. Ousterhout
Publikováno v:
Poultry Science. 60:1152-1159
Vanadium added to laying rations as NH4 VO3, VOCl2 or VOSO4 at levels of 20 to 80 ppm resulted in a rapid and substantial reduction in albumen quality as measured b y Haugh units. Dietary vanadium also resulted in reduced egg production, egg weight,
Autor:
L. E. Ousterhout
Publikováno v:
Poultry Science. 60:1036-1042
The effects of phasing dietary protein and calcium levels on egg weight and shell quality were studied using 1200 White Leghorn hens of four strains housed in group cages. Hens fed diets decreasing in protein by 1% while increasing in calcium by .5%
Autor:
Jon O. Nordstrom, L. E. Ousterhout
Publikováno v:
Poultry Science. 62:525-531
Variations in light:dark ratios and timing schedules of 26- and 28-hr ahemeral cycles were examined for their effects on shell quality and egg weight. In two experiments utilizing 2578 White Leghorn Laying hens, 16-week long ahemeral treatments were
Autor:
L. E. Ousterhout
Publikováno v:
Poultry Science. 59:1480-1484
Fourteen hundred caged Leghorn hens were fed 10 dietary treatments formulated at three constant calcium levels, 2.75, 3.75, and 4.75%, and two variable levels, decreasing from 3.75 to 2.75% and increasing from 3.75 to 4.75%, each in .25% steps each 8
Autor:
Jon O. Nordstrom, L. E. Ousterhout
Publikováno v:
Poultry Science. 61:1991-1995
Egg weight (EW), egg specific gravity (SG), shell thickness (ST), and shell weight (SW) were determined individually for 1853 eggs ranging in weight from 41 to 70 g. The eggs were laid by three groups of Single Comb White Leghorn (HN SW (g) = −5.97
Publikováno v:
Poultry Science. 59:1860-1863
Increasing dietary lead concentrations from 0 to 2000 ppm linearly decreased the weight of two-week-old chicks to approximately 70% of that of the controls. The growth depression caused by the lead was lessened by increasing the dietary calcium and p
Autor:
L. E. Ousterhout
Publikováno v:
Poultry Science. 61:2255-2260
Two broiler breeder trials were conducted through 73 and 69 weeks of age, respectively, using 720 hens divided among 24 pens in each trial. Half the pullets and hens (Hubbard × Hubbard) in each trial were fed simple rations and half were fed rations
Publikováno v:
The Journal of Nutrition. 69:65-73
Autor:
L. E. Ousterhout, D. G. Snyder
Publikováno v:
Poultry Science. 41:1753-1757
FISH MEALS have long been recognized as a source of high-quality protein for use in animal feeds. They also have long been recognized as varying considerably in composition and nutritive quality. This variation likely occurs because the meals are man
Publikováno v:
Poultry Science. 45:21-26
INTRODUCTION IT IS known that the presence of calcium ions in the intestine interfere with the absorption of tetracycline antibiotics by the chicken (Price et al., 1958–1959). Thus, blood levels of tetracycline antibiotics can be increased by reduc