The reproductive tract of poultry and the process of egg formation 家禽输卵管总长60公分左右 包括:漏斗部,膨大部,峡部,子宫,阴道 当母鸡开产后 她吃的食物中的营养成分 就会转化成蛋黄的基本成分 1/3蛋白质,1/3脂肪和1/3水分 由...
The egg of granulifer granulifer Thulin 1928 (: ) is composed of two shells: the thin vitelline envelope and the multilayered . The process of the formation of the egg shell begins in middle . The I. g. granulifer vitelline envelope is of the primary type (secreted by the oocyte), bu...
S. The formation of the egg in the oviduct of the turkey (MeleagTis gallapavo). J. exp. Zool. 82: 287. 1939.Asmundson, V. S. 1939. The formation of the egg in the oviduct of the turkey (Meleagris gallopavo). Journal of Experimental Zoology 82:287 -304....
(1987). Egg formation and the pre-laying period of the common guillemot Uria aalge. -- J. Zool. Lond. 211: 83-88.Birkhead TR, Del Nevo AJ (1987) Egg formation and the pre- laying period of the common guillemot Uria aalge. J Zool 211:83±88...
In Pristionchus pacificus, the egg-laying system is homologous to C. elegans, but comparative studies revealed several differences at the cellular and molecular levels during vulval formation. For example, the mesoblast M participates in lateral inhibition, a process that influences the fate of ...
Upon the mode of formation of the egg and the embryonic development of the Sacculinæ140 MISCELLA>'EOUS. Upon the Mode of Formation of the Egrj and the Einhryonic Develop-ment of the Sacculinae. By M. E. van Bexedex. Ix a note inserted in the ' Comptos llendus ' of the ...
Anion-exchange chromatography of crude homogenates resulted in two distinct peaks of activity. Both isoenzymes were specific for myo-inositol and scyllo-inosose. epi- and scyllo-inositol as well as epi-inosose were only poor substrates, while all other polyols and sugars tested did not serve...
How long is the period of cell division in an embryo when compared to that of a normal cell? Why does the inertia egg drop experiment work? What is difference between tissue culturing and cloning? What is the difference between tissue culturing and cloning? How is the process of translatio...
To identify proteins that are actively involved in this process, we have analyzed and compared the effects on CaCO3 precipitation in vitro of some commercial egg white proteins, some noncommercial purified fractions of the eggshell organic matrix and, also of uterine fluids extracted from the hen ...
As egg production is influenced by genetics, nutrition and management factors, genetics plays a fundamental role in this process. The key causative factor for this difference is that different goose breeds have been artificially selected for a long time, which has changed the genome region. The ...