Results 201 to 210 of about 1,111,424 (239)

Quantitative expression of candidate genes affecting eggshell color

Animal Science Journal, 2014
AbstractThere are three pigments that affect the color of an eggshell: protoporphyrin, biliverdin and biliverdin‐zinc chelate. Protoporphyrin is the main pigment in brown and light‐brown eggshells, whereas very little protoporphyrin is found in white eggshells. Eggshell protoporphyrin is derived from the heme formation in birds.
Chuanwei, Zheng, Zesheng, Li, Ning, Yang, Zhonghua, Ning   +3 more
openaire   +3 more sources

Celadon: An Eggshell Color Mutation in Japanese Quail

Journal of Heredity, 1993
A new eggshell color mutant was discovered in the Japanese quail. This trait was named "celadon" and was shown to be controlled by an autosomal recessive gene. Therefore, the gene symbol ce was proposed. This gene and an autosomal recessive gene we controlling a white eggshell trait were shown to be nonallelic. Also, ce was shown to be hypostatic to we.
S, Ito, M, Tsudzuki, M, Komori, M, Mizutani   +3 more
openaire   +2 more sources

Dietary yeast β-glucan supplementation improves eggshell color and fertile eggs hatchability as well as enhances immune functions in breeder laying hens.

International Journal of Biological Macromolecules, 2020
The study was conducted to evaluate the effects of dietary yeast β-glucan (YG) on performance and immune functions in breeder hens in a non-challenged setting.
W. Zhen, Yujing Shao, Yuanyuan Wu, Lianhong Li, Van Hieu Pham, Waseem Abbas, Zhang Wan, Yuming Guo, Zhong Wang   +8 more
semanticscholar   +1 more source

Progresses in inheritance of genes for avian eggshell color

HEREDITAS, 2007
Eggshell has three colors: white, blue and brown. Chicken and duck eggs with blue eggshell have superior market for its better appearance, delicious taste, abundant nutrition and higher eggshell thickness and strength compared to those with white eggshell.
Qing-Yan, Yuan, Li-Zhi, Lu
openaire   +2 more sources

CHARACTERISTICS OF BIRD EGGSHELL COLORATION DEPENDING ON NEST LOCATION

BIOLOGY & ECOLOGY
У статті за результатами аналізу колекцій яєць різних екологічних груп птахів та різних літературних джерел узагальнено наукові дослідження щодо морфологічних адаптацій, які відносяться до забарвлення шкаралупи яєць у птахів. Зазначено, що морфологічна адаптація – забарвлення шкаралупи яєць у птахів – одна із функцій маскування та пристосування до умов
L. Kharchenko, I. Lykova, A. Koval, K. Ponomarova   +3 more
openaire   +3 more sources

Does contrast between eggshell ground and spot coloration affect egg rejection?

The Science of Nature, 2017
Obligate avian brood parasitic species impose the costs of incubating foreign eggs and raising young upon their unrelated hosts. The most common host defence is the rejection of parasitic eggs from the nest. Both egg colours and spot patterns influence egg rejection decisions in many host species, yet no studies have explicitly examined the role of ...
Miri Dainson, Mark E. Hauber, Analía V. López, Tomáš Grim, Daniel Hanley   +4 more
openaire   +2 more sources