scholarly journals The effects of long-term caging and molt of Single Comb White Leghorn hens on heterophil to lymphocyte ratios, corticosterone and thyroid hormones

2000 ◽  
Vol 79 (4) ◽  
pp. 514-518 ◽  
Author(s):  
G.S. Davis ◽  
K.E. Anderson ◽  
A.S. Carroll
Keyword(s):  
Thyroid Hormones ◽  
White Leghorn ◽  
Single Comb

scholarly journals The Role of Plasma Thyroid Hormones in the Regulation of Body Weight of Single Comb White Leghorn and Broiler Embryos

1990 ◽  
Vol 69 (8) ◽  
pp. 1388-1393 ◽  
Author(s):  
W.H. BURKE ◽  
K.D. ARBTAN ◽  
N. SNAPIR
Keyword(s):  
Body Weight ◽  
Thyroid Hormones ◽  
White Leghorn ◽  
Single Comb

scholarly journals Quantitative and Qualitative Protein Changes in the Developing Single Comb White Leghorn Chicken Embryo

1972 ◽  
Vol 51 (1) ◽  
pp. 313-320 ◽  
Author(s):  
J.A. Asmar ◽  
P.L. Pellett ◽  
Nur Hariri ◽  
M.D. Hariri
Keyword(s):  
Chicken Embryo ◽  
White Leghorn ◽  
White Leghorn Chicken ◽  
Single Comb

The inheritance of shank colour in single comb White Leghorn and Australorp fowls

1951 ◽  
Vol 2 (4) ◽  
pp. 494
Author(s):  
F Skaller ◽  
GW Grigg
Keyword(s):  
White Leghorn ◽  
Genetical Analysis ◽  
Different Types ◽  
White Leghorns ◽  
Single Comb ◽  
Mode Of Inheritance

Evidence has been presented in the literature on the mode of inheritance of shank colour in various breeds of chickens, but little has hitherto been known about the same aspect in an Australian breed, the Black Australorp. Observations on the incidence of shank colour in different types of crosses between yellow-shanked White Leghorns and black-shanked Australorps are reported in this paper. According to the observations made by other workers on White Leghorn and other breeds, a hypothesis is advanced regarding the genes involved in determining shank colour in the White Leghorn and Australorp. A genetical analysis of the observations made by the authors on 847 single crosses, 71 backcrosses, and 31 zig-zag crosses is presented and shows close statistical agreement with the hypothesis. A genetical formula, including four autosomal and two sex-linked genes, is suggested which would explain the mode of inheritance of shank colour in White Leghorns and Australorps.

Measurement of free thyroid hormones in patients on long-term phenytoin therapy

1984 ◽  
Vol 26 (5) ◽  
pp. 633-634 ◽  
Author(s):  
J. A. Franklyn ◽  
M. C. Sheppard ◽  
D. B. Ramsden
Keyword(s):  
Thyroid Hormones ◽  
Free Thyroid Hormones

Comparison of Four Induced Molting Methods Based on Subsequent Performance and Welfare of Single Comb White Leghorn Hens

2007 ◽  
Vol 11 (1) ◽  
pp. 98-102
Author(s):  
I.H. Khodadadi ◽  
H. Moravej ◽  
M. Shivazad ◽  
H. Mehrabani-
Keyword(s):  
White Leghorn ◽  
Subsequent Performance ◽  
Single Comb

scholarly journals Growth Performance of Single Comb White Leghorn Chicks Fed Diets Containing Blood Meal Supplemented with Isoleucine

2008 ◽  
Vol 45 (1) ◽  
pp. 31-38 ◽  
Author(s):  
James Tyus II ◽  
Samuel N. Nahashon ◽  
Nathaniel Adefope ◽  
Darren Wright
Keyword(s):  
Growth Performance ◽  
Blood Meal ◽  
White Leghorn ◽  
Single Comb

scholarly journals Determinants of placental iodine concentrations in a mild-to-moderate iodine-deficient population: an ENVIRONAGE cohort study

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Kristof Y. Neven ◽  
Bianca Cox ◽  
Karen Vrijens ◽  
Michelle Plusquin ◽  
Harry A. Roels ◽  
...  
Keyword(s):  
Thyroid Hormones ◽  
Biological Significance ◽  
Iodine Concentration ◽  
Stepwise Multiple Regression ◽  
Vitamin Supplementation ◽  
Winter Period ◽  
Dependent Manner ◽  
Concentration Dependent Manner ◽  
Gestational Period

Abstract Background Iodine is an essential trace element for the production of thyroid hormones, and plays a key role during the gestational period for optimal foetal growth and (neuro-)development. To this day, iodine deficiency remains a global burden. Previous studies indicate that the placenta can store iodine in a concentration-dependent manner and serve as a long-term storage supply, but studies on the determinants of long-term placental iodine load are limited. Methods The placental iodine concentrations were determined for 462 mother-neonate pairs from the ENVIRONAGE birth cohort (Limburg, Belgium). Sociodemographic and clinical variables were obtained from questionnaires and medical files. Determinants of placental iodine concentration were identified using stepwise multiple regression procedures (p value < 0.15). The biological significance of our findings was investigated by measuring the plasma thyroid hormones in maternal and cord blood of 378 participants. Results A higher pre-pregnancy BMI, higher gestational weight gain, and alcohol consumption during pregnancy were linked with lower placental iodine storage. Multi-vitamin supplementation during pregnancy and longer gestation were associated with higher levels of placental iodine. Children born during the winter period had on average higher placental iodine levels. Besides, we found a significant positive time trend for placental iodine load over the study period 2013 to 2017. Lastly, we observed positive associations of both the maternal and cord plasma thyroxine concentrations with placental iodine load, emphasizing their biological link. Conclusions This study identified some determinants likely presenting a risk of reduced iodine storage during the gestational period of life. Future studies should elucidate the effects of lower placental iodine load on neonatal health, and health later in life.

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