inyati13
Well-known member
Kenley Conner of Select Sires was at the farm this week. He was my AI instructor and does a good job communicating with his customers. I was telling him about the difficult June breeding season and that I had to guess more than usual about when to breed. He stated that he has started breeding early rather than late if he cannot hit them right when the textbook says the window is open. KNERSIE said something similar: That studies for heifers show that if they are standing, you can get good results by breeding at standing rather than waiting. Kenley said one of the problems with waiting too long is the biological clock is ticking on the egg. Remember cells age and an egg is a cell. Until it is fertilized, it is actually deteriorating. If the sperm cell is there when the egg ruptures from the follicle and begins its journey to implantation in the uterus, it gets fertilized, forms a zygote and stops the biological equivalent of an aging piece of fruit. Like a banana that becomes soft and dark.
Everyone has their set of AI biases. Mike Gifford is an old school guy I know who believes you can breed 24 hours after standing heat with good results. Kenley Conner does this for a living and is probably about like our CP on Cattle Today. He is a very short window guy based on what he told me. In the classroom he sticks with the manual but privately, he said in his own herd if a cow is standing when he gets up in the morning; he will breed her a couple of hours later. He does not like to wait until later that evening. He said the sperm will be in position, complete their maturation process and fertilize the egg early while it is still unaged.
Everyone has their set of AI biases. Mike Gifford is an old school guy I know who believes you can breed 24 hours after standing heat with good results. Kenley Conner does this for a living and is probably about like our CP on Cattle Today. He is a very short window guy based on what he told me. In the classroom he sticks with the manual but privately, he said in his own herd if a cow is standing when he gets up in the morning; he will breed her a couple of hours later. He does not like to wait until later that evening. He said the sperm will be in position, complete their maturation process and fertilize the egg early while it is still unaged.