The hypoblast (visceral endoderm): an evo-devo perspective

CD Stern, KM Downs - Development, 2012‏ - journals.biologists.com
When amniotes appeared during evolution, embryos freed themselves from intracellular
nutrition; development slowed, the mid-blastula transition was lost and maternal …

Reproductive isolation in birds: postcopulatory prezygotic barriers

TR Birkhead, JP Brillard - Trends in ecology & evolution, 2007‏ - cell.com
Reproductive isolation is an important part of the speciation process. Recent studies of birds
have highlighted not only the significance of postcopulatory postzygotic barriers, but also the …

Phenotypic traits as reliable indicators of fertility in male broiler breeders

S McGary, I Estevez, MR Bakst, DL Pollock - Poultry Science, 2002‏ - Elsevier
Genetic selection procedures applied to improve broiler performance may negatively impact
the subsequent reproductive efficiency of breeders, particularly in males. Identification of …

Unhatched eggs: methods for discriminating between infertility and early embryo mortality

TR Birkhead, J Hall, E Schut, N Hemmings - Ibis, 2008‏ - Wiley Online Library
Unhatched eggs are a common phenomenon in birds and are often referred to as being
'infertile', which (confusingly) can mean at least two things:(1) that the ovum has not been …

Embryonic development of the emu, Dromaius novaehollandiae

H Nagai, SS Mak, W Weng, Y Nakaya… - Developmental …, 2011‏ - Wiley Online Library
The chick, Gallus gallus, is the traditional model in avian developmental studies. Data on
other bird species are scarce. Here, we present a comparative study of the embryonic …

[HTML][HTML] Comparative staging of embryo development in chicken, turkey, duck, goose, guinea fowl, and Japanese quail assessed from five hours after fertilization …

N Sellier, JP Brillard, V Dupuy, MR Bakst - Journal of Applied Poultry …, 2006‏ - Elsevier
Normal tables of chicken embryo development are used to define specific stages of
morphogenetic progression from the first cleavage divisions through hatching. Although …

[HTML][HTML] The chick blastoderm during diapause, a landmark for optimization of preincubation storage conditions

N Pokhrel, D Sela-Donenfeld, Y Cinnamon - Poultry Science, 2021‏ - Elsevier
At the time of oviposition, the chicken embryo is in its blastodermal stage. The blastoderm
displays the unique ability to undergo developmental arrest at low temperatures in a process …

Effects of the dietary inclusion of a probiotic, a prebiotic or their combinations on the growth performance of broiler chickens

MA Murshed, AM Abudabos - Revista Brasileira de Ciência Avícola, 2015‏ - SciELO Brasil
ABSTRACT A total of 350-one-day old chicks were placed in 70 cages, with 14 cages per
treatment. The following five treatment diets were fed for 14 days: T1= non-supplemented …

Potential relationships between physical traits and male broiler breeder fertility

S McGary, I Estevez, MR Bakst - Poultry Science, 2003‏ - Elsevier
Genetic selection in primary broiler breeders may modify skeletal structure, possibly
impeding semen transfer, and could alter the size and degree of fluctuating asymmetry (FA) …

[HTML][HTML] Cellular and morphological characterization of blastoderms from freshly laid broiler eggs

N Pokhrel, EBT Cohen, O Genin, D Sela-Donenfeld… - Poultry Science, 2017‏ - Elsevier
The pioneering study of Eyal-Giladi and Kochav (EG&K; Eyal-Giladi and Kochav, 1976) on
the early developmental stages—from fertilization, through oviposition, to the gastrulation …