Submit Manuscript

International Journal of Poultry Science

Year: 2003 | Volume: 2 | Issue: 1 | Page No.: 1-6
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail

Article Trend

Total views 150

Search

Authors

B. A. Coles1

J. Croom1

L. R. Daniel1

V. L. Christensen1

I. L. Taylor

Keywords

Research Article

In ovo Peptide YY Administration and Jejunal Glucose Transport in Hatchling Turkey Poults:Effects of Dosage and Genotype

B. A. Coles1, J. Croom1, L. R. Daniel1, V. L. Christensen1 and I. L. Taylor
Two trials were conducted to investigate the efficacy of in ovo administration of various dosages of peptide YY (PYY) on jejunal glucose absorption in hatchling poults from two strains of turkeys, Egg Line (EL) selected for egg production and British United Turkey (BUT) selected for growth. In both trials, either 100 µl saline (1.025% w/v) or saline plus PYY were injected into the air cell of fertile EL and BUT line eggs at day 25 of incubation. At hatch, poults were euthanized by cervical dislocation, the jejunum removed and its weight and unstretched length recorded. Two to 4 mg cross-sections of the mid-jejunum were used to estimate active and passive glucose absorption using the accumulation of 3-O-methy-D-glucose (3OMG) in the presence and absence of phlorizin. In Trial 1, EL and BUT eggs were administered saline or saline plus 600 µg/kg egg wt, while in Trial 2, EL and BUT eggs were administered either saline or saline plus 300, 600, or 900 µg/kg egg wt. No differences were observed in hatchling body weights of poults from saline and PYY treated eggs from either line in both trials. In Trial 1, poults from EL treated eggs (600 µg/kg egg wt) had greater active jejunal 3OMG uptake compared with saline treated controls (332 vs. 270 pmol/min/mg tissue, p<0.05, respectively). In Trial 2, poults from BUT eggs treated with 900 µg PYY/kg egg wt had greater (p<0.05) jejunal glucose transport than by the control group or the 600 µg PYY/kg egg wt group. Poults from EL eggs treated with PYY had non-significant increases in 3OMG uptake at all levels of PYY administration. BUT poults from eggs treated with 900 µg PYY/kg had heavier jejunums adjusted for body weight. In ovo PYY administration at day 25 of incubation increases active glucose transport in the intestinal tract of turkey poults, however, response and dosage varies with turkey line.
PDF Citation

How to cite this article

B. A. Coles1, J. Croom1, L. R. Daniel1, V. L. Christensen1 and I. L. Taylor, 2003. In ovo Peptide YY Administration and Jejunal Glucose Transport in Hatchling Turkey Poults:Effects of Dosage and Genotype. International Journal of Poultry Science, 2: 1-6.

DOI: 10.3923/ijps.2003.1.6

URL: https://scialert.net/abstract/?doi=ijps.2003.1.6

Leave a Comment

Your email address will not be published. Required fields are marked *