SBMF 2015 said:
I have both 25 and 50 ml Alflex syringes. Depending on what dose is required I like the 25's better. When you are giving a 2ml dose it actually feels like you are moving the plunger in the syringe.
As far as needles; 18ga is to small for any thing but baby calves. I use 16ga x 5/8" for sub Q in calves , 16ga x 3 /4" for sub Q in yearlings and cows, and 14ga x 1" for thick stuff like wormer .
The only time I use 1 1/2" needles is when I give Lutalyce .
I disagree with you on the needle sizes. 18g works fine for almost all vaccines, and 16g is enough for thicker stuff. I've never used a 14 g for anything other than large IV doses.
I use 18g or 20g for hormone injections. The less tissue damage you cause with the needle, the better your injection works.