CONTENTS February/March 2018 Vol. 105, No. 2 canadianpoultrymag.com 14 34 COLUMNS 28 DEPARTMENTS 04 | From the Editor CFC seeks to empower brands to resist activists 06 | What’s Hatching Egg sustainability expert wins prestigious award 41 | Classifieds 42 | Innovations Barn expands into organic production FEATURES 14 COVER STORY Hit the lights Broilers benefit from longer dark periods. BY MELANIE EPP 08 | Perspectives Combating vegan activists’ deceptive practices 10 | LRIC Update New on-farm test for avian influenza 11 | Ask the Vet The Veterinary-Client-Patient Relationship 40 | CPRC Update Studying enzyme/yeast-based prebiotics 18 The language of LEDs What you need to know to get the best out of your lighting system. BY NORA WOLSKE ON THE COVER Contrary to traditional thinking, adding lengthier periods of darkness to broiler lighting regimes actually improves health and production parameters. See story on page 14. ISSN 1488 0865. Canadian Poultry is published 10 times per year by Annex Publishing & Printing Inc. Canada Post Publications Mail Agreement No. 40065710 . Return undeliverable Canadian addresses to: Circulation Department, 111 Gordon Baker Rd., Suite 400, Toronto ON M2H 3R1. No part of the editorial content in this publica-tion may be reprinted without the publisher’s written permission. © 2018 Annex Publishing & Printing Inc. All rights reserved. Opinions expressed in this magazine are not ne-cessarily those of the editor or publisher. No liability is assumed for errors or omissions. All advertising is subject to the publisher’s approval. Such approval does not imply any endorsement of the products or services advertised. Publisher reserves the right to refuse advertising that does not meet the standards of this publication. Printed in Canada.