Results 81 to 90 of about 5,109 (183)
Development of the abdominal musculature in the chicken embryo
In this study, we investigate anatomy, morphogenesis, segmental origin, and fiber formation of the abdominal musculature in the chicken embryo. We show that abdominal muscles arise from somites 24 to 28, and that the segmental identity of individual fibers in the abdominal muscle sheets is maintained.
Margarethe Draga +6 more
wiley +1 more source
At the eighth week of human embryonic development, 3D transparent imaging enables clear visualization of the outflow tract's morphological features, revealing its anatomical components in detail. Abstract The ductus arteriosus (DA) is a critical fetal vascular structure that shunts blood from the pulmonary artery to the aorta, bypassing the non ...
Conghong Xu +7 more
wiley +1 more source
The purpose of this research is to study the effect of combination levels of methionine-lancang (Atlanta sp.) in diet on egg quality of Tegal ducks. Eighty-one Tegal ducks early production period were used in this research.
Roesdiyanto Roesdiyanto
doaj
ABSTRACT This study evaluated the effects of breeder hen age on the incubation performance, embryonic development, and progeny quality of Cobb500 broiler breeders at 39, 51, and 69 weeks of age. A total of 870 eggs were collected, of which 810 were incubated; these were assigned to a completely randomized design with three treatments and nine ...
Helder Freitas de Oliveira +9 more
wiley +1 more source
This study was conducted to examine five lysine (Lys) levels (0.75, 0.80, 0.85, 0.90, and 0.95%) to estimate the optimal level of Lys for Longyan laying ducks from 22 to 38 wk of age.
Ahmed Mohamed Fouad +5 more
doaj +1 more source
The effect of three housing systems (conventional cages, enriched cages and litter) on egg quality parameters was evaluated in two experiments with four brown laying strains ISA Brown, Hisex Brown, Bovans Brown and Moravia BSL. During 40 weeks of lay the
E. Tůmová +3 more
doaj +1 more source
Variation in Bird Eggs-Does Female Factor, Season, and Laying Order Impact the Egg Size, Pigmentation, and Eggshell Thickness of the Eggs of Capercaillie? [PDF]
Rosenbeger J +3 more
europepmc +1 more source
Capercaillie (Tetrao urogallus) eggshell pigmentation, maculation and thickness
Eggshells properties (mainly thickness, pigmentation and shape) vary within avian taxa across species, and intraspecifically with age, environmental conditions or individual features of the animals. The properties and appearance of eggshells are important for successful breeding both for birds kept in captivity and in breeding centres and those living ...
Rosenberger, Joanna +3 more
openaire +2 more sources
Eggshell thickness in American shorebirds before and since DDT
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Morrison, Michael L., Kiff, Lloyd F.
openaire +1 more source
ABSTRACT The aim of the present study was to determine the effects of high dietary fluoride intake on performance, egg quality, serum biochemical parameters, bone tissue, mineral accumulation, and the expression of selected mineralisation‐related genes in laying hens, and to evaluate whether these effects could be alleviated by dietary activated ...
Muhammed Serkan Sevim, Emre Yilmaz
wiley +1 more source

