Spring 2018 Cow/Calf Newsletter and Health and Repro Program Suggestions

posted: by: Paul McCann, DVM Tags: "Clinic Specials" "News" 



Explanation of Intranasal Pneumonia Vaccine Strategy


Calves at the time of branding have colostrum antibodies that can neutralize or inactivate injectable vaccine.  The use of nasal vaccine technology is preferred because it creates immunity to several, common viral and bacterial pneumonia bugs.


The reason nasal vaccines work in these young calves is via the IgA antibody pathway.  The vaccine stimulate immunity at the tonsil and sinus region of the animal.  The cow’s colostrum antibodies do not interfere at this location.  This is also the gate way to the lungs for infection.


Nasalgen is a vaccine that stimulates immunity for IBR (common herpes virus), PI3 (influenza virus).  The studies show 6 months immunity… this will help protect them until pre-conditioning injectable vaccine.


Once PMH is a vaccine originally designed as an injectable vaccine for veal calves and is now proven to work effectively as a nasal vaccine.  This vaccine stimulates immunity for Pasteurella Multocida and Mannhemia Hemolytica.  Both these bacteria are common in cattle but cause pneumonia if they access the bronchus or lungs of the calves. 


This recommendation of using nasal instead of injectable vaccine at branding is new to some clients:

·         Nasal cannulas (plastic tips) are provided with the vaccine.

o   Replace them when you refill the syringe.

·         The goal is to administer the vaccines on inhalation.  So place the tip (to the hub) up the nose of the calf and wait for inhalation to squirt it in.

·         When you give both Nasalgen and Once PMH… administer each in different nostrils. (same administration technique).

·         Sunlight, heat and cleaning agents will deactivate these vaccines, so handle appropriately.




Growth Implant Notes


Ear implants in commercial calves are common and profitable.  Most of the fed cattle in the USA receive implants during the stocker and feedlot phase.

At the cow/calf level of production these implants increase weaning weights by 20+ pounds.  The return on investment is unbeatable in agriculture.

There are several different implants commonly available:

·         Synovex

·         Component EC* (doctor recommended)

·         Compudose

·         Ralgro (currently unavailable)

*My preference is the Component EC.  This is an implant similar to Synovex but lasts longer (120 days) and has a Tylan (antibiotic) pellet included.  This Tylan implant prevents abscessing or bacterial implant contamination.  It is impossible to implant with sterile technique at branding.  You will not see the abscessing of most implants but it renders them ineffective.   You will still want to be as clean as possible using this implant.

If you have target breeding animals, bull calves or replacement heifer calves… implants do not apply.  If you do not select your replacement heifers until weaning, this implant is cleared for use in all heifer calves, so I would implant them at branding.


If you have questions, please feel free to ask us.


                                                                                                                Have a great spring & summer,


                                                                                                                Paul W. McCann, DVM

                                                                                                                Bear Paw Veterinary Service





Long Range Injectable in Short Supply

Long Range Injectable is currently in short supply due to problems at the manufacturing plant. The company is working with the FDA to resolve the matters but are unsure of when the more of product will be available.

We have been fortunate to be able to get in a supply to cover those clients who purchased this product last year. If you used Long Range in the past and plan to use it again this year, please contact us so we may set aside the product for you. We currently have 500ml bottles in stock and expect the other sizes in the next few days.






For those of you who attended the recent Merck Meeting on January 24, 2018 “Needleless Branding”, as promised, the Merck Rep has sent one nasal vaccine gun for each ranch in attendance. If you attended the meeting, please stop by for your nasal vaccine gun. Thank you.











Bear Paw Veterinary Service

Cow/Calf Spring Health & Reproductive Program Suggestions


Text Box: Replacement Heifers:
	Pre-breeding by 30-45 days:
		Vaccinate with PregGuard 10 (30-60 days prior to breeding/synchronizing)
		Repro tract score and pelvic measure
		Spring Deworm (LongRange Injection)

Cows:         (Young cows should be Spring Dewormed with LongRange Inj.)

Fall Killed Vaccine program cows:  no vaccine needed.

          Spring MLV program cows: (>30 days pre-breeding)

                   Vaccinate with PregGuard 10

Text Box: Bulls:
		Breeding Soundness Examination
 If no PregGuard 10 last Fall then Trivib VL5 vaccine
		Parasite control (lice, flies i.e. Saber, Clean Up II)
Calves:  Branding Vaccines


Program #1: (minimal vaccine program, plan on preconditioning in late summer**).


Vision 7(if not on Alpha 7 at birth)                

Program #2: (This program is recommended if pneumonia occurs in calves during the summer or early fall and calves will be preconditioned prior to weaning).

                        Once PMH Intranasal


                        Vision 7 (if not on Alpha 7 at birth)

Program #3: (This program is recommended if pneumonia occurs in calves during the summer or early fall and calves will not be preconditioned prior to weaning).

                        Vista Once injectable vaccine


                        Vision 7 (if not on Alpha 7 at birth)


*Remember that proper implants increase weaning weight by 20 to 25 lbs… most calves are implanted prior to slaughter, why should you give up the pounds?


Text Box: **Plan on preconditioning the calves in late summer or early fall… about 30 days prior to stress (e.g. August or early September).    Calves respond to preconditioning vaccines when they are 4 months of age and older.