Guide for Mycotoxins In Dairy APPROXIMATE RANGE FOR POTENTIAL REACTION MYCOTOXINS
LOW
MEDIUM
HIGH
DON (vomitoxin)
< 300 ppb
300-1,000 ppb
> 1,000 ppb
Zearalenone
< 100 ppb
100-300 ppb
> 300 ppb
Aflatoxin
< 10 ppb
10-30 ppb
> 30 ppb
T-2 toxin
< 75 ppb
75-200 ppb
> 200 ppb
Fumonisin
< 600 ppb
600-1,500 ppb
> 1,500 ppb
QUALIFIERS • Multiple mycotoxins will compound potential effects. • Toxic effect may be increased by body condition, health challenges, or stress. • Mycotoxins are not uniformly distributed in feedstuffs. • Small samples yield high test errors and underestimate mycotoxin contamination rate. • Low-level test results may still be cause for pro-active response.
REPRESENTATIVE SYMPTOMS DON (vomitoxin)
Zearalenone
Aflatoxin
T-2 toxin
Fumonisin
Reduced Feed Intake / feed refusal
Hyper-estrogenism
Liver damage; altered protein synthesis
Reduced Feed Intake
Reduced Feed Intake
Reduced milk production; reduced milk fat
Poor reproductive performance
Lower milk protein
Intestinal hemorrhages
Reduced milk production
• Short cycle heats
Impaired immune function
Frequent defecation
GI tract ulceration
• Cystic cows; follicular cysts
Increased disease rates
Impaired immune function
Impaired immune function
Elevated SCC
• Twinning cows; multiple ovulations
Highly interactive
Increased disease rates
Impaired immune function
• Enlarged mammary glands in virgin heifers
Poor reproductive performances
Loose, inconsistent manure
Revised 06/2013
Talk to your CentralStar team about complementary feed testing to determine your risk.
801-7 West Wayne St. Middlebury, IN 46540 | www.agrariansolutions.com Toll Free (888) 254-1482 | Phone (574) 825-1224 | Fax (574) 825-3119
Decision Chart Herd Indicators Check each block for which one or more indicators is present in the herd. The total number of check blocks in the value to be entered on the chart below. Multiple Mycotoxins Present
Transition Challenges
Reproductive Challenges
DA’s Ketosis Off Feed
Decreased Detection Rates Silent/Weak Hearts Mammary Development in Virgin Heifers
Health Challenges
Production Challenges
Reproductive Challenges
Elevated SCC Intestinal Hemorrhages Increased Death Loss Inconsistent Manure
Reduced Milk Production Reduced Milk Fat Erratic Intakes
Cystic Ovaries/Follicular Cysts Off-Cycle Heats Decreased Pregnancy Rates
This chart represents a general guideline for estimating dose rate to be used for Select DTX™, as appropriate. It is only a guide, subject to revision, and specific recommendations may vary upon consultation with relevant authorities.
Talk to your CentralStar team about complementary feed testing to determine your risk.
801-7 West Wayne St. Middlebury, IN 46540 | www.agrariansolutions.com Toll Free (888) 254-1482 | Phone (574) 825-1224 | Fax (574) 825-3119