Effects of exposing broiler breeders to nicarbazin contaminated feed

Ten-mo-old broiler feeders were fed nicarbazin (NCZ) at 0, 25, 50, and 100 ppm of their diet for 2, 4, or 6 days to simulate accidental contamination of their feed with the medicant. Reduced egg production was observed in all treatments except 25 and 50 ppm NCZ for 2 days. A consistent reduction in...

Full description

Saved in:
Bibliographic Details
Published in:Poultry science 1991-03, Vol.70 (3), p.476-482
Main Authors: Hughes, B.L. (Clemson University, Clemson, SC), Jones, J.E, Toler, J.E, Solis, J, Castaldo, D.J
Format: Article
Language:English
Subjects:
Animal Feed
Animals
ANTICOCCIDIEN
CASCARA DE HUEVO
Chickens - physiology
COCCIDIOSTATICOS
COQUILLE D'OEUF
DURACION
DUREE
ECLOSABILIDAD DEL HUEVO
ECLOSABILITE
Eggs - standards
Female
Fertility - drug effects
Food Contamination
Nicarbazin - toxicity
ORGANISME INDICATEUR
ORGANISMOS INDICADORES
Oviposition - drug effects
PIGMENTACION
PIGMENTATION
POLLO DE ENGORDE
POULET DE CHAIR
PRODUCCION DE HUEVOS
PRODUCTION D'OEUFS
Random Allocation
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Ten-mo-old broiler feeders were fed nicarbazin (NCZ) at 0, 25, 50, and 100 ppm of their diet for 2, 4, or 6 days to simulate accidental contamination of their feed with the medicant. Reduced egg production was observed in all treatments except 25 and 50 ppm NCZ for 2 days. A consistent reduction in egg weight occurred only at the maximum treatment level of 100 ppm for 6 days. Reduction in hatchability was generally evident by Days 5 and 6 of the experiment except for the lowest treatment of 25 ppm NCZ for 2 days. Due partially to the low number of eggs set, no statistically significant reduction in hatchability was seen for the group receiving 50 ppm NCZ for 4 days, but hatchability had dropped over 17 percentage points (from 93.3 to 75.5%) by Days 5 and 6 of the experiment, and continued to drop to a low of 31% on Days 11 and 12 of the experiment. Shell pigmentation was the most sensitive characteristic measured, with significant depigmentation occurring after only 2 days of feeding 25 ppm NCZ. Generally, the severity and duration of effects were in proportion to medicant concentration and length of treatment time. Fertility was not influenced by the medicant
ISSN:0032-5791
1525-3171
DOI:10.3382/ps.0700476