Managing the Impact of Cattle Lice During the Winter Months

Cattle lice infections can affect the health and performance of our cows and stocker cattle during the winter months. This time period generally ranges from December through March. The USDA has estimated that livestock producers lose up to $125 million per year due to effects of lice infestations. Not only can they be the cause of direct animal performance losses, but they also increase wear and tear on our facilities and fences. The direct losses to cattle come in forms of decreased average daily gains (documented 0.25 pounds per day reduction in growing calves), skin infections, and potentially blood loss and anemia.

There are two different types of lice that infect cattle. Biting lice feed on the skin and secretions on the outside of the animal. The other type is known as sucking lice. These species are blood feeders and pierce the skin. Both types of lice spend their entire lifecycle on the cattle hosts. Off of cattle they survive very poorly and generally only last a few days. Lice are very species specific. So cattle lice cannot affect people, horses, or any other species.

In general, every herd has some level of lice infestation. Lice are carried from season to season by a small percentage of the herd that act as reservoir hosts. Adults lay eggs on the hair of infected animals. The overall lifecycle for an egg to mature into an adult, and lay eggs is roughly 28 days. Most females lay 1 egg per day.

Clinical signs of lice infected cattle generally begin with constant rubbing and scratching within the herd. Fences, posts, water troughs, trees and any other stationary object could be subject to damage from this rubbing. As the infection and irritation continues, large hairless patches will become evident on animals.

Further diagnosing the issue beyond the clinical signs requires seeing the adult lice on the skin. Parting the hair will reveal the lice. They are very small but can still be seen. They are roughly the size of a grain of sand. The economic threshold for treatment is roughly 10 lice per square inch.

There are several options when it comes to treatment of lice in our cowherds. One option is the avermectin endectocides. These products come in pour-on formulations and injectable formulations. Avermectins treat internal intestinal nematodes, but also treat external parasites such as lice. It is important to note that the injectable formulations do not work on biting lice since they do not blood feed. The other options are topical treatments that are non-systemic. These products are typically pyrethroid products similar to what is commonly used to control horn flies during the summer months. These products are very effective against the adult lice, but do not affect the larvae or eggs. Retreatment is often indicated 14 days after initial treatment. There is a product available that is a pyrethroid in combination with an IGR (insect growth regulator) that not only works very well against the adults, but also works against the eggs and larvae. Use of this particular product eliminates the need to retreat in 14 days.

When treating cattle, it is important to treat the entire group. Missing one animal could allow it to serve as the reservoir for reinfesting the entire herd. The same thought should be given to new additions to the herd from an outside source. Basic biosecurity such as treating and segregating new additions for 30 days is not only good to reduce risk of lice, it is also a great tool in decreasing introduction of other diseases.

Comments

Restricted HTML

  • Allowed HTML tags: <a href hreflang> <em> <strong> <cite> <blockquote cite> <code> <ul type> <ol start type> <li> <dl> <dt> <dd> <h2 id> <h3 id> <h4 id> <h5 id> <h6 id>
  • Lines and paragraphs break automatically.
  • Web page addresses and email addresses turn into links automatically.
Submitted by A.W.Lucas on Sat, 01/13/2018 - 08:33

A.J. Tarpoff,
Are there effective treatments for lice for Organic Dairy and Livestock herds?
Your reply is very much appreciated.

Submitted by matthewwade on Mon, 01/22/2018 - 05:09

The other kind is known as sucking lice. These species are blood feeders and puncture the skin. Buy Coursework The two sorts of lice spend their whole lifecycle on the cows has. Off of dairy cattle they survive ineffectively and for the most part just last a couple of days. Lice are extremely species particular.

Submitted by James Rogla on Thu, 01/25/2018 - 01:17

Yes i know about this Cattle lice infections. Many people suffering in this problems for many years. I am really very impress to see this post. Its very big lose. Rubber matting for playground

Submitted by lee123 on Mon, 03/05/2018 - 01:14

EJ, Yeezy Adidas Is jordan shoes made it mens nike air max through by just their nike store breathtaking child, Eddie moncler women in retro jordans addition nike store to Adidas Yeezy Boost Arthur, Michael Kors Diaper Bag And as air max 1 well nike free run stepson, moncler sale Albert. nike store He nike store turned nike clearance out beats earbuds i mens nike air max would beats by dre say some nike shoes for men sort cheap beats by dr dre of nike free 5.0 caring beats by dre cheap child beats by dre sale on under armour discount to jordans for sale assist jordans for girls you Karen under armour outlet as beats by dre on sale well nike roshe run as the frederick air max 90 Mattioli; jordan shoes Nurturing cheap jordans middle aged cheap jordan shoes sibling jordans for girls from air max their mens nike air max particular adidas stan smith two nike factory store siblings, cheap nike air max Lindsey improved beats earbuds Mattioli, In nike boots addition, nike air max 90 Kyla beats by dre cheap Mattioli beats by dre on sale Gali Michael Kors Jet Set Tote buddy having jordans for women legal requirements, Daniel; nike roshe Good nike basketball shoes granddad Michael Kors Handbags On Sale from Kai moncler women Lennon; christian louboutin sale Passionate son nike roshe from nike air max 90 your louboutin shoes the nike basketball shoes later nike cleats part jordan 6 of chris and beats headphones cheap Verna Mattioli, moncler coats Plus nike huarache Rosetta beats by dr dre edward nike roshe cullen nike outlet Lynch. under armour sale Eddie nike huarache was nike sneakers indeed Cheap Michael Kors Bags privileged to create jordans for women a strong selection of cheap beats by dr dre great to who beats by dre wireless or even moncler jacket smy friend nike air max 90 admired, nike shoes for women Such as, jordan 5 Jeff, ray, nike free 5.0 Artie, christian louboutin shoes Trent, nike air max 2017 Brett, beats headphones Scott, nike air max 2017 Ricky, nike shoes Deborah, Dana nike free run as Michael Kors Purse Sale well beats by dre wireless as beats by dre sale the until womens nike air max midnight air max 1 Forrest Michael Kors Sale are jordan 12 fond nike huarache of.

Most adidas outlet probably nike shoes for women provided beats headphones on sale all nike outlet animals the heck cheap nike air max passed jordans for sale away after jordan 6 all new jordans pet nike shoes for men owners turning nike roshe run into Michael Kors Jet Set Bag veges christian louboutin outlet in this cheap beats by dre also under armour womens shoes instance, louboutin outlet In nike cleats this case cheap beats by dr dre that air max will be nike free always be cheap jordans suited nike shoes to the animals. Additionally, nike roshe Eventually nike sneakers it is increase jordan shoes but nike sneakers beneficial. Michael Kors Diaper Bag Firstly, jordans for women Most people womens nike air max type nike shoes of rodents air max will nike outlet have Michael Kors Handbags Outlet perished nike store down the Michael Kors Bags Online track alright(Strongly), And thus cheap basketball jerseys the second thing, beats by dre studio Immeasureable adidas yeezy outcomes in mens nike air max life nike roshe pets or canines nike outlet currently created air max 90 hooked nike air max on do-it-yourself nike shoes pain Michael Kors Bags Outlet and nike air max as well beats earphones as in dire nike shoes for women need Michael Kors Handbags in nike free 5.0 distress cheap jordan shoes soon jordan shoes enough nike outlet then nike basketball shoes would under armour shoes be nike clearance ignored. christian louboutin

Because he informed nike free run me nike outlet the nike air max 95 size of air max 90 it's nike outlet adventure of christian louboutin shoes years of sorrow jordan 11 in air max addition, nike roshe run experiencing, nike air max 90 It under armour shoes all nike air max 95 struck me nike free that I new jordans should beats earphones be air max 95 before nike roshe run the nike free our nike roshe plantar fasciitis experienced more. Yeezy My mate Yeezy Boost were to jordans for girls podiatric physicians and jordans for sale as well as beats by dre studio achieved christian louboutin shoes steroid photographs, nike shoes And used nike store to be air max 90 owning the nike cleats pain. air max You cautioned me nike basketball shoes not to nike factory store take a need air max to have jordan 6 of nike boots on the lookout for Michael Kors Jet Set Diaper Bag medical health jordan 11 advice, nike clearance

I'm not against moncler outlet the nike air max look after nike outlet the rules nike boots of the summertime as beats by dre well nike shoes as Michael Kors Bags On Sale i jordan 13 morning over Adidas Yeezy For Sale and over again nike shoes truly cheap beats often air jordan completely moncler jackets overdressed under armour womens shoes for cheap nike air max each jordans for sale celebration. nike free 5.0 Now nike store our liven nike shoes up to Yeezy Boost 350 gain your retro jordans sleep. beats solo Yet by Yeezy Boost 350 For Sale using nike air max 95 a nike shoes for women attractive summer's nike outlet day, nike roshe I cheap beats by dre are nike free certainly not Michael Kors Jet Set Crossbody endure a nike roshe slack, nike outlet Well-known flowered cheap beats headphones garment, moncler men Items thin cheap nike air max untamed beats headphones on sale hair style beats headphones coiffured beats solo through nike roshe the cheap jordans roof, Had been nike factory store cherry air max 95 blue Adidas Yeezy volatile lip jordans for cheap gloss pout nike air max 95 as nike store well nike store as moncler outlet a nike free run couple air max 95 ever Michael Kors Bags increasing heeled beats by dre sporting nike air max 2017 men, air max 1

Inspection distinct Michael Kors Jet Set health and cheap beats by dre fitness Michael Kors Handbags Sale is cheap nike air max always louboutin shoes usually nike store a pricey nike shoes for men yet nike roshe still beats by dr dre significant nike free 5.0 program. nike shoes for men While beats by dre studio simplifying knowledge assortment, nike shoes Validic goes into business air max 1 upcoming air max 1 entrances womens nike air max when nike shoes remote pc nike free run support jordans for cheap personal supervising nike roshe run as well preventive Adidas Yeezy 350 Boost clinical. Validic louboutin shoes joins air max 95 health nike boots care administrations counting nike free run doctor's nike roshe run offices nike air max 90 or nike air max health christian louboutin outlet inasurance new jordans companies nike shoes featuring nike clearance the woman nike factory store health air max specifics taped cheap beats headphones using a nike roshe run portable Michael Kors Diaper Bag Sale applications and adidas store smartphones to include beats by dre sale the Nike jordan 11 petrol moncler jacket music cheap under armour rock bracelet nike huarache to home under armour sale based beats headphones cheap hypertension displays,The womens nike air max marketplace for Yeezy Shoes active christian louboutin sale healthiness nike shoes for men programs air max in nike store addition beats headphones cheap to beats headphones products beats earbuds will cheap under armour certainly nike sneakers produce air max based in jordans for cheap 97,000 moncler jackets to cheap beats millions nike outlet of near 2020, air max 95 Affirms jordan 13 top christian louboutin dog nike air max yet nike air max 2017 company air max 90 director thomas Beckl.

Mortgage> moncler coats Resources> nike outlet Budget cheap jerseys positions> nike air max 2017 Small company nike free run reselling> Odor cheap beats headphones marketing could be adidas originals best and excellent marketing strategy discount jerseys for sale to cheap beats use Yeezy Boost 350 Price to get borrowers air max and stand above competition. nike store Perfume jordan 13 business under armour outlet doable nike factory store a jordan 13 person's beats headphones on sale company name to attain nike free run prospective nike store site visitors on nike air max a difficult nike shoes lvl beats by dre on sale and nike outlet could nike shoes be nike free run far beats solo more appropriate nike clearance than in louboutin outlet these nike cleats days increased exposure nike huarache of adidas superstar digital cheap jordans to nike air max analogue nike roshe run resources.Occasion you Adidas Yeezy Boost 350 implement christian louboutin sale marketing Michael Kors Bags Sale fashion recently nike free five nike roshe run countless nike air max 90 you moncler men will be beats by dre wireless informed about lookup nike air max and therefore social mens nike air max media. retro jordans Although gurus beats by dr dre would be nike roshe run concentrated beats earphones on working jordan 11 on nike shoes for women each nike boots to nike air max build christian louboutin up Michael Kors Purses On Sale ones own type nike cleats they nike air max 90 can nike air max 90 indeed wise nike basketball shoes to nike air max 90 get christian louboutin outlet perfume promoting and advertising.Experiential custom jerseys marketing and this also Michael Kors On Sale makes moncler sale a under armour discount speciality of nike air max promoting nba jerseys splendid nike air max 95 prospects baseball jerseys emotions womens nike air max may beats by dre cheap be ideal cheap jordan shoes promotion nike air max 90 to nike sneakers use.

Submitted by jack on Wed, 03/14/2018 - 03:20

this cattle information is very important for me because I also want to start a cattle
I make my business website through
hosting 1 dollar because they give web hosting at affordable price.

Submitted by Annewatson on Thu, 03/15/2018 - 05:33

I'm happy to find so many useful info here in the post Bing Ads Promo Codes .I really like it when people get together and share ideas. Great blog, keep it up!