Abstract

Effect of a Direct-Fed Microbial on Reproductive Performance in Late Lay Turkey Breeder Hens

Highlights

  • A notifiable foreign animal disease (FAD) outbreak can cause major economic losses to the food animal industry and disruption to supply for both domestic consumers and international trading partners

  • The poultry industry experienced this with an outbreak of highly pathogenic avian influenza (HPAI) in 2015 that led to the destruction of over 7 million commercial and breeder turkeys and economic losses over $3.3 billion [1,2]

  • The addition of a direct-fed microbials (DFM) resulted in improved mean body weight (BW) and feed conversion ratio (FCR) in female and male turkeys reared to 18 and 20 weeks, respectively [6]

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Summary

Introduction

A notifiable foreign animal disease (FAD) outbreak can cause major economic losses to the food animal industry and disruption to supply for both domestic consumers and international trading partners. The poultry industry experienced this with an outbreak of highly pathogenic avian influenza (HPAI) in 2015 that led to the destruction of over 7 million commercial and breeder turkeys and economic losses over $3.3 billion [1,2]. Current production practices are being investigated to see if there are ways to prolong the production cycle of turkey breeder hens if a FAD outbreak leads to the depopulation of large numbers of breeder flocks and/or commercial turkeys. The addition of a DFM resulted in improved mean body weight (BW) and feed conversion ratio (FCR) in female and male turkeys reared to 18 and 20 weeks, respectively [6]. In two field trials, water delivered DFM resulted in a nominal improvement in bird livability, mean BW, total farm weight of birds, and FCR while cost of production was decreased ($0.0195/kg).

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