Monday, April 13, 2026

Teat Length and Teat Placement: Genetic Trends and Selection Strategies

Mich Livestock Service, Inc — "For the Best in Bulls" and "High Energy Forages" 110 N Main St (PO Box 661) Ovid, MI 48866 📞 (989) 834-2661 | ✉️ greg@michiganlivestock.com | 🌐 www.michiganlivestock.com

Mark Curry (989) 984-7027 — Route Services and Sales Sue Palen (989) 277-0480 — Office Manager, Products Manager Greg Palen (989) 277-6031 — "aAa" Approved Analyzer, Certified Seed Specialist


Forty years ago when I was breeding Jerseys, the breed had a terrific issue with reverse tilted udders and asymmetrical teat placement (too wide in front, too close in rear). The source of these problems were primarily the index world's fixation on sons and grandsons of Observer Chocolate Soldier. This basically proved that linebreeding to an "index", concentrating on a ranked sire line without regard to genetic structural differences, leads us to problems.

Today we have a similar issue in Holsteins. Udders are moving forward under the pelvis, the rear teats are only half the size/length of the fore teats, and fore teats are moving wider. The linear solution is to create "robot ready" indexes (drawing sales away from the dominance of the Genomic Observer sire line — an ironic coincidence of names!), but addressing the cause of these problems requires more thought than a sales gimmick slogan.

For most people, the biggest issue is teats too short. Linear graphs show a majority of ranked sires are "left of the average line" for teat length. Here are some favorites of ours, sourced by AI Total who bucked this trend and will keep your udders more "milkable":


Vogue A2P2 -PP (aAa 3 1 5 2 4 6) — +0.50 teat length @ 94% Rel. | Also A2A2 Beta Casein Now an Elite sire of polled sons, recently scored 97 points at seven years of age!

Aurora Blackjack -P (aAa 4 5 3 2 1 6) — +0.73 teat length | Both A2A2 Beta C and BB Kappa C Like "A2P2" he is significantly "plus" for both Butterfat% and Protein% and lower Somatic Cell

Lorita Sphinx -PP (aAa 2 4 3 1 6 5) — +0.97 teat length | Both A2A2 Beta C and BB Kappa C Another high butterfat% and protein% combination, with calving ease and +0.4 DPR to boot

Siemers Tao Prada (aAa 5 6 1 4 3 2) — +1.38 teat length | Both A2A2 Beta C and BB Kappa C Plus butterfat%, plus protein%, high +1.4 DPR, calving ease; source of wide, sturdy front ends

Wednesday, April 8, 2026

Designing a Breeding Program that gives you a “future” herd

  

Can anyone predict where the dairy industry is heading?    It is easier to predict changes you need to make to increase your competitive edge.    One of these is to bring your Protein production up to match recent gains in Butterfat.    Another is to create MORE ROBUST, MORE CAPACIOUS, MORE MOBILE trouble-free cows to match your milking, housing and feeding environments.

Genetics is not well utilized if all you consider is “ranking” today.    You have to build a cow that is adaptable to future changes, that will have the vigor to live a full life  (not die just as she should get rolling after a second or third calf).    The combination of higher mature production and lower replacement costs gives you the economic edge that the average cow does not give the average dairy today.

If accomplishing this from breeding seems perplexing to you, give us a chance to add some direction to your matings and provide some useful outcross sires.

Mich Livestock Service   For the best in bulls”  and high energy seeds to feed them

               Ph (989) 834- 2661           email:  greg@michiganlivestock.com

Wednesday, April 1, 2026

The importance of good front-end structure for longer cow life

  

Linear mating concepts are much more focused on the rear end (hind legs and feet + udders) than they are on front ends (which also have legs and feet!).    Thus in many herds, problems accumulate in how cows walk, get in and out of stalls, and breathe.                        

Hoof trimmers point out problems in front legs and feet leading to chronic lameness
A poor front foot stance (uneven weight bearing between inner and outer claws) will often lead to lameness.    Your hoof trimmer takes the excess off the toe carrying less weight.    Next time he comes, he sees same cow, and trims the same problem.    You cannot fix a poor front foot by hoof trimming.   It is a problem caused by bad mating selection; she will have this all her life.

The chest of cows need to be deep enough to house a fully functioning heart and wide enough to fully and easily inflate the lungs.    Thus a triangulated (“wedge shape”) front end is best.   In  such a front end, the elbow places the foreleg “out” to provide a more sturdy stance, the feet will point straight ahead (rather than spindled to the side) and the weight bearing will be even from side to side.    Cows will get up and down easily, and feet will wear evenly, minimizing the need for hoof trimming.    ( Interestingly, you will find the head on the cow proportional to the dimensions of the front end. )

A proportional front end will carry that proportionality into the body
When the front end of the cow has the desired wedge shape, you will find the body also has a desirable “wedge shape” (over the topline, from “sharp” shoulders the back expands to “broad” hips: in side view, the ribs sweep back at an angle from elbows getting longer as they approach the flank at the joining of fore udder to body wall).

Ribs need to be both “elastic” and deep, NOT tight and shallow.     When the skeletal frame has these three “triangle” dimensions, you will have fully functioning ruminant digestion.

But the front end is the “engine” of the cow, housing heart (blood circulation) and lungs (blood oxygenation) essential to maintaining the body for a full productive life.    286 pounds of blood circulate through the udder for every pound of milk the cow produces!     So capacity in a front end should not be overlooked in your mating selection process.

How does the “aAa” process aid you to consistently produce good front ends?

aAa #1 “DAIRY”  lengthens the neck, triangulates from shoulder to elbow, and broadens hips.
aAa #4 “STRONG”  makes a deeper chest for a larger heart (stronger blood circulation)
aAa # 5 “SMOOTH”  widens the elbow, sets the front leg sturdier, shapes the foot evenly

Bulls  with  great  front  ends

The “modern” cow had its origin in the mid 1960s.    The two most transformative Holstein bulls into that era were Osborndale Ivanhoe and Romandale Reflection Marquis.    “Ivanhoe” was “Tall” and “Dairy”:  “Marquis” was “Tall” and “Strong”.
  
Type classification and Show judging were both changing in favor of such bulls at that time and set the breed up for a rapid improvement in the pace of production, and the ability of cows to have a full lifetime of production, as bulls who sired cows whose production increased as they reached maturity and held steady into older ages.     The “Tall” features they offered, which we now associate with the production of bovine somatotropin (“growth hormone”) helped as the dairy nutrition industry focused on utilizing more corn and oilseeds as production supplement.

Both these bulls had good front ends.    “Ivanhoe” could add refinement while “Marquis” added substance and strength;  these blended well with the “Burke” and  “Dunloggin” bloodlines that dominated early AI programs prior to the advent of frozen semen, that often led to smaller and frailer cow physiques.

What do we seem to need now?     W I D E R  front ends
Here are some choices that will restore width to the narrow front-ended cow.

525 HO 117   Rex PP Red        (aAa 5 4 6 3 1 2)    sturdy front legs, deep chest                Triple Hil
A2A2 for Beta Casein, AB for Kappa Casein.    Improves Protein %          
In combining the “Roxy” and “Apple” cow lines, gains milk yield dramatically into maturity.

515 HO 452   Prada                 (aAa 5 6 1 4 2 3)     sturdy, wide chests, deep rib                A I Total 
A2A2 for Beta Casein, BB for Kappa Casein.   Improves Butterfat % and Protein %
Look to him to improve milkout, this bull helps teats both in placement and length.

54 HO 1156  Pace Setter       (aAa  4 6 2 5 1 3)     deep chest, durable bones                    No Bull
This brand new “No Bull Solutions” sire from Regancrest’s “Barbie” family is a “special” one
His dam is now working on her third lactation and looks capable of 40,000 pounds    

799HO 045  Dynasty             (aAa  3 4 5 2 1 6)     wide at both ends, great rumps            Blondin
A2A2 for Beta Casein, BB for Kappa Casein.   Improves butterfat % and Protein %.
#1 Type of Progeny Proven bulls USA (December 2025)  another Kings Ransom success story

733HO 012  Goliath PP        (aAa  1 2 3 5 4 6)     ultimate “wedge shape” physique         A G 3
A2A2 for Beta Casein, BB for Kappa Casein.    No extremes in linear evaluation.
Combines today’s two leading ranked PP sires:  Stantons Remover PP and Vogue A2P2 PP