Do the IGR additives in Minerals pass through to calf?

Cattle problems.
Post Reply
User avatar
sstterry
GURU
GURU
Posts: 1338
Joined: Sat Jul 08, 2017 5:04 am
Location: Bulls Gap, TN
Has thanked: 262 times
Been thanked: 169 times

Do the IGR additives in Minerals pass through to calf?

Post by sstterry » Fri May 17, 2019 5:13 pm

As I was out checking the cows this evening I saw a heifer calf doing her business and the question occurred to me do the IGR or larvicide additives pass through to the calf in the mother's milk? So far the IGR is controlling my fly population pretty darn well, but our peak fly season is not until August.



User avatar
Bright Raven
GURU
GURU
Posts: 9947
Joined: Fri Mar 10, 2017 9:57 pm
Location: Kentucky
Has thanked: 592 times
Been thanked: 588 times

Re: Do the IGR additives in Minerals pass through to calf?

Post by Bright Raven » Fri May 17, 2019 5:18 pm

IGR is a compound that interferes with the life cycle of fly species - dipterans. It is systemic so it would be in the cow's milk. I don't know at what concentrations. What is your concern?
"Looking for an honest man".
Diogenes.

User avatar
sstterry
GURU
GURU
Posts: 1338
Joined: Sat Jul 08, 2017 5:04 am
Location: Bulls Gap, TN
Has thanked: 262 times
Been thanked: 169 times

Re: Do the IGR additives in Minerals pass through to calf?

Post by sstterry » Fri May 17, 2019 5:37 pm

It is not a concern really. I was just thinking that since it takes effect as a larvacide in the manure; if the calves are not consuming mineral with the IGR, then am I really being efficient since some flys will lay eggs in the calf manure.

User avatar
Bright Raven
GURU
GURU
Posts: 9947
Joined: Fri Mar 10, 2017 9:57 pm
Location: Kentucky
Has thanked: 592 times
Been thanked: 588 times

Re: Do the IGR additives in Minerals pass through to calf?

Post by Bright Raven » Fri May 17, 2019 5:40 pm

sstterry wrote:
Fri May 17, 2019 5:37 pm
It is not a concern really. I was just thinking that since it takes effect as a larvacide in the manure if the calves are not consuming mineral with the IGR, then am I really being efficient since some flys will lay eggs in the calf manure.
Technically, it is a life cycle inhibitor. The calves are probably not getting enough in milk to inhibit life cycles in their manure but if the calves are licking mineral the amount added by milk is a bonus.
"Looking for an honest man".
Diogenes.

User avatar
sstterry
GURU
GURU
Posts: 1338
Joined: Sat Jul 08, 2017 5:04 am
Location: Bulls Gap, TN
Has thanked: 262 times
Been thanked: 169 times

Re: Do the IGR additives in Minerals pass through to calf?

Post by sstterry » Fri May 17, 2019 5:46 pm

Thanks. I just was wondering.

User avatar
Jeanne - Simme Valley
Mentor
Mentor
Posts: 10557
Joined: Thu Dec 09, 2004 5:46 am
Location: Central Upstate New York
Has thanked: 367 times
Been thanked: 523 times

Re: Do the IGR additives in Minerals pass through to calf?

Post by Jeanne - Simme Valley » Sat May 18, 2019 3:34 pm

My calves dig right into my mineral. I don't feed IGR, but if I did, I would think they consumed enough on their own. We don't have a big enough fly problem around here to do any treating - eartags, backrubs, IGR, etc.
Simme Valley of New York - http://www.SimmeValley.com
"We make a living by what we get,
we make a life by what we give."

Post Reply