scholarly journals Influence of Dietary Oil, Cholesterol, and Soysterols on the Fecal Neutral and Acidic Steroid Excretion in Laying Hens

1980 ◽  
Vol 59 (2) ◽  
pp. 325-327 ◽  
Author(s):  
J.S. SIM ◽  
W.D. KITTS ◽  
D.B. BRAGG
Keyword(s):  
Laying Hens ◽  
Acidic Steroid ◽  
Steroid Excretion ◽  
Dietary Oil

scholarly journals Effects of dietary cholesterol in the Mongolian gerbil and the rat: a comparative study

1989 ◽  
Vol 23 (1) ◽  
pp. 30-35 ◽  
Author(s):  
A. M. Temmerman ◽  
R. J. Vonk ◽  
K. Niezen-Koning ◽  
R. Berger ◽  
J. Fernandes
Keyword(s):  
Comparative Study ◽  
Mongolian Gerbil ◽  
Cholesterol Ester ◽  
Dietary Cholesterol ◽  
Hepatic Cholesterol ◽  
Cholesterol Feeding ◽  
Acidic Steroid ◽  
To Come ◽  
Steroid Excretion ◽  
Low Cholesterol

To come to a better understanding of the diet-induced cholesterol-ester storage in the gerbil liver, the reactions of the gerbil to 0·2% of cholesterol in the diet during 4 weeks were compared with those of the rat consuming the same diet. The major reason for the increased hepatic cholesterol-ester storage in the cholesterol-fed gerbil is the low cholesterol turnover in this species. This contrasts with the rat. Although faecal acidic steroid excretion can be slightly increased during cholesterol feeding in the gerbil, this increase is not sufficient to compensate for the quantity of dietary cholesterol when administered at the 0·2% level.

scholarly journals Influence of different dietary oil sources on performance and fatty acid profile of egg yolk in laying hens

2011 ◽  
Vol 20 (1) ◽  
pp. 71-83 ◽  
Author(s):  
N. Ceylan ◽  
I. Ciftçi ◽  
C. Mızrak ◽  
Z. Kahraman ◽  
H. Efil
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Profile ◽  
Laying Hens ◽  
Egg Yolk ◽  
Dietary Oil

Effect of Vitamin D3 on Cadmium Retention by Laying Hens

2002 ◽  
Vol 52 (2) ◽  
pp. 81-84
Author(s):  
B. Koréneková ◽  
A. Jacková ◽  
J. Kottferová ◽  
P. Siklenka ◽  
M. Skalická ◽  
...  
Keyword(s):  
Vitamin D ◽  
Laying Hens

ПРЕРЫВИСТОЕ ОСВЕЩЕНИЕ ПОВЫШАЕТ ЭФФЕКТИВНОСТЬ ИСКУССТВЕННОГО ОСЕМЕНЕНИЯ КУР В КЛЕТКАХ

2019 ◽  
Keyword(s):  
Reproductive Performance ◽  
Artificial Insemination ◽  
Egg Production ◽  
Laying Hens ◽  
Electric Energy ◽  
Productive Performance ◽  
Feed Conversion ◽  
Scientific Center ◽  
Academy Of Sciences ◽  
Egg Fertility

Intermittent Lighting Improves the Efficiency of Artificial Insemination in Cage Housed Laying Hens Kavtarashvili A.Sh., Kolokolnikova T.N. Federal Scientific Center “All-Russian Research and Technological Poultry Institute” of Russian Academy of Sciences Omsk Agrarian Scientific Center Summary: The effects of different lighting regimes on the oviposition schedule, productive performance, and reproductive efficiency in cage housed laying hens of layer parental flock (Hisex White-R) were studied; the reasonable regime of artificial insemination (AI) under intermittent lighting is proposed. It was found that intermittent lighting regime 1L:4D:4L:1D:4L:10D compared to the constant lighting significantly alters oviposition schedule: under this regime 82.3% of all daily eggs were laid until 9 am (vs. 66.6% in control). This regime and AI at 10 am improved the productive and reproductive performance compared to control (constant lighting 16L:8D and AI at 12 am): mortality by 1.9%, egg production per initial hen by 3.8%, egg weight by 1.1%, percentage of eggs suitable for incubation by 1.9%, egg fertility by 0.9%, hatchability by 2.3%, hatch of chicks by 2.9%, feed conversion ratio (kg of feed per 10 eggs) by 5.3%, the expenses of electric energy for lighting (per 1000 eggs suitable for incubation) by 54.5%. Key words: INTERMITTENT LIGHTING, CAGE HOUSED LAYERS, ARTIFICIAL INSEMINATION (AI), OVIPOSITION SCHEDULE, AI TIMING, PRODUCTIVE PERFORMANCE, REPRODUCTIVE PERFORMANCE

ON THE VALUE OF SOME PARAMETERS OF ADRENOCORTICAL GLUCOCORTICOID FUNCTION

1963 ◽  
Vol 44 (4) ◽  
pp. 499-504 ◽  
Author(s):  
M. Van Der Straeten ◽  
A. Vermeulen ◽  
N. Orie ◽  
P. Regniers
Keyword(s):  
Urinary Excretion ◽  
Adrenal Cortex ◽  
Isotope Dilution ◽  
Isotope Dilution Method ◽  
Dilution Method ◽  
Steroid Excretion ◽  
Colorimetric Methods

ABSTRACT The authors studied the correlation between cortisol production, as measured by an isotope dilution method, and the urinary excretion of total and free Porter-Silber chromogens, as well as of 17-ketogenic steroids. Although a significant correlation exists between total Porter-Silber chromogens, 17-ketogenic steroid excretion and cortisol production, discrepancies are occasionally observed. Hence, different colorimetric methods should be used to assess the glucocorticoid activity of the adrenal cortex.

ADRENOCORTICAL FUNCTION IN PATIENTS WITH ACUTE SEVERE BRAIN AND PITUITARY LESION

1962 ◽  
Vol 40 (2) ◽  
pp. 254-262 ◽  
Author(s):  
H. H. Bassøe ◽  
R. Emberland ◽  
E. Glück ◽  
K. F. Støa
Keyword(s):  
Pituitary Gland ◽  
Adrenal Cortex ◽  
Artificial Ventilation ◽  
Practical Significance ◽  
Adrenocortical Function ◽  
The Third ◽  
Low Levels ◽  
Pituitary Lesion ◽  
Steroid Excretion ◽  
The Brain

ABSTRACT The steroid excretion and the plasma corticosteroids were investigated in three patients with necrosis of the brain and of the pituitary gland. The patients were kept alive by artificial ventilation. In two of the patients the neutral 17-ketosteroids and the 17-hydrocorticosteroids fell to extremely low levels. At the same time, the number of eosinophil cells showed a tendency to increase. Corticotrophin administered intravenously twice to the third patient had a stimulating effect on the adrenal cortex. The theoretical and practical significance of these findings is discussed.

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