Yolk and Exogenous Feed Utilization in the Posthatch Chick
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چکیده
منابع مشابه
Enterocyte dynamics and mucosal development in the posthatch chick.
Changes in the morphology of the small intestinal mucosa and enterocyte dynamics were examined in posthatch chicks through 12 d. At hatch, enterocytes were round and nonpolar; however, within 24 h posthatch, enterocytes lengthened and exhibited more typical morphology. Crypts were rudimentary at hatch and by 48 h invagination was completed and crypt numbers increased by branching and fission, w...
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An experiment was conducted to study the effect of post-hatch feed deprivation on yolk sac utilization and subsequent performance of young broiler chickens (280) up to 35 days of age. The experimental treatments included access to feed at 8 h intervals after hatch, up to 48 h (0, 8, 16, 24, 32, 40 or 48 h). Water was offered ad libitum to all the groups immediately after placement. Results indi...
متن کاملBehavioural transformation in chick yolk-sac cells.
During the first 3 to 4 days of development in the chick, the extraembryonic part, the yolksac, expands to encompass the yolk mass. The yolk-sac, initially a two-layered epithelial sheet, is pulled out by the action of a specialized band of cells at its periphery. These attach to the overlying vitelline membrane and move out over it. However, unincubated blastoderms are not attached to the vite...
متن کاملExpression of the peptide transporters PepT1, PepT2, and PHT1 in the embryonic and posthatch chick.
Peptide transporters 1 and 2 (PepT1 and PepT2) and peptide/histidine transporter 1 (PHT1) are all members of the proton-coupled oligopeptide transporter family, which are important for the transport of amino acids in peptide form. The PepT1 acts as a low-affinity/high-capacity transporter and PepT2 as a high-affinity/low-capacity transporter for di- and tri-peptides. The PHT1 transports di- and...
متن کاملEffect of Posthatch Feed Restriction on Broiler Breast Muscle Devel
The effect of an immediate posthatch growth restriction mediated through a 20% growth restriction the first 2 wk posthatch was studied for its effect on pectoralis major muscle morphological structure and the expression of the myogenic transcriptional regulatory factors, MyoD and myogenin, and the heparan sulfate proteoglycans syndecan-4 and glypican-1. Broiler chicks at hatch were divided into...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 2001
ISSN: 0032-5791
DOI: 10.1093/ps/80.10.1490