Poultry USA - November 2019 - 13

P OULT RY
H E A LT H
T O D A Y®

N E W S

A B O U T

P O U L T R Y

H E A L T H

P R O D U C T S
ISSUE

14

P O U L T R Y H E A L T H T O D A Y . C O M

toolbox

An interview with

Manuel Da Costa, DVM, PhD

Good gut health can help minimize
Salmonella in broilers

Associate Director
Outcomes Research

"

Zoetis

Q: Zoetis has been conducting studies about the impact of gut health on the prevalence
of Salmonella in broilers. What's the connection between the two?

We want to help producers

MD: We've known for years that withdrawing or reducing antibiotic use can be related to
a higher Salmonella prevalence.1 We also know necrotic enteritis (NE) is a big problem in
broilers raised without antibiotics, although NE can also affect conventional flocks.2 NE
is often preceded by coccidiosis, which causes gut damage that enables Clostridium
perfringens to proliferate, leading to NE.3

meet USDA's stricter
performance standards for
Salmonella at processing

without antibiotics.

MD: We want to help producers meet USDA's stricter performance standards for Salmonella
at processing - whether they are raising broilers with or without antibiotics.
We theorized that if gut health could be maintained and NE controlled, the Salmonella
prevalence and load would decrease. Toward that end, we tested various interventions to see
which ones helped control coccidiosis and NE and if that, in turn, reduced Salmonella.

- whether they are
raising broilers with or

Q: What was the goal of the studies?

"

Q: How were the studies set up?
MD: We conducted three controlled broiler-pen studies (Table 1) with Colorado Quality
Research.4 We included bacitracin methylene disalicylate (BMD®) because it's indicated for NE
prevention and control. We also tested antibiotic alternatives used in "no antibiotics ever"
(NAE) production systems, as well as vaccination against Salmonella.

continued

Table 1. Study designs
Treatment
groups -
48 pens with 32
birds per pen
Study 1
Study 2
Study 3
SPECIAL ADVERTISING SUPPLEMENT

Control

Bacitracin
methylene
disalicylate
55 ppm

*
*
*

*
*
*

Zoalene
125 ppm

*
*

Probiotic
Bacillus
subtilis
at 1lb/ton

Modified-live
Salmonella Typhimurim
vaccination on day 1
and 10 days of age

*
*

*
*
Sponsored by


https://poultryhealthtoday.com

Poultry USA - November 2019

Table of Contents for the Digital Edition of Poultry USA - November 2019

Poultry USA - November 2019
Contents
Further antibiotic use reduction will be hard
Bringing tech solutions to poultry industry challenges
Bell & Evans grows in organic, specialty poultry
Gen Z moms will dig deeper for information on chicken
8 digital technologies to disrupt the turkey industry
Efficiency, sustainability key for Pilgrim’s Sanford
Tyson, Sanderson earn Clean Water Award honorable mention
Marketing poultry products to younger generations
Bulb type doesn’t have much impact on broiler performance
Product Review
Market Place
Ad Index
Poultry USA - November 2019 - CT1
Poultry USA - November 2019 - CT2
Poultry USA - November 2019 - Poultry USA - November 2019
Poultry USA - November 2019 - Cover2
Poultry USA - November 2019 - Contents
Poultry USA - November 2019 - Further antibiotic use reduction will be hard
Poultry USA - November 2019 - 3
Poultry USA - November 2019 - 4
Poultry USA - November 2019 - 5
Poultry USA - November 2019 - Bringing tech solutions to poultry industry challenges
Poultry USA - November 2019 - 7
Poultry USA - November 2019 - 8
Poultry USA - November 2019 - 9
Poultry USA - November 2019 - Bell & Evans grows in organic, specialty poultry
Poultry USA - November 2019 - 11
Poultry USA - November 2019 - 12
Poultry USA - November 2019 - 13
Poultry USA - November 2019 - 14
Poultry USA - November 2019 - 15
Poultry USA - November 2019 - 16
Poultry USA - November 2019 - 17
Poultry USA - November 2019 - Gen Z moms will dig deeper for information on chicken
Poultry USA - November 2019 - 19
Poultry USA - November 2019 - 20
Poultry USA - November 2019 - 21
Poultry USA - November 2019 - 8 digital technologies to disrupt the turkey industry
Poultry USA - November 2019 - 23
Poultry USA - November 2019 - Efficiency, sustainability key for Pilgrim’s Sanford
Poultry USA - November 2019 - 25
Poultry USA - November 2019 - 26
Poultry USA - November 2019 - 27
Poultry USA - November 2019 - Tyson, Sanderson earn Clean Water Award honorable mention
Poultry USA - November 2019 - 29
Poultry USA - November 2019 - 30
Poultry USA - November 2019 - 31
Poultry USA - November 2019 - Marketing poultry products to younger generations
Poultry USA - November 2019 - 33
Poultry USA - November 2019 - 34
Poultry USA - November 2019 - 35
Poultry USA - November 2019 - 36
Poultry USA - November 2019 - 37
Poultry USA - November 2019 - Bulb type doesn’t have much impact on broiler performance
Poultry USA - November 2019 - Product Review
Poultry USA - November 2019 - Ad Index
Poultry USA - November 2019 - Cover3
Poultry USA - November 2019 - Cover4
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