cows not holding to AI

cattle man

im having alot of cow not holding to AI in the last month or two wondering does anyone else have this problem. some cows have been served 3 times and still not holding in calf. im using mostly bb ai and wondering would this effect the holding rate. few heifer i used limousin ai and they all held.

any advise welcome thanks.:)

pakalasa

How are you heat detecting?
Last year I had a lot of repeats but I put it down to the vasectomised bull I was using for the first time. He would detect heats after about 6 weeks or so, much earlier than normal. When the season was over, even though I had alot of repeats, the average calving date didn't slip back at all.

I remember someone else posting here (can't remember name) saying they had the same thing happen.

funny man

cattle man wrote: »

im having alot of cow not holding to AI in the last month or two wondering does anyone else have this problem. some cows have been served 3 times and still not holding in calf. im using mostly bb ai and wondering would this effect the holding rate. few heifer i used limousin ai and they all held.

any advise welcome thanks.:)

breed won't make a difference, but there are alot of variables when trying to get cows in calf, cow nutrition and health, on the other side that you have a competant ai operator. I ai my own cows and the only thing i can think off if every thing else is up to scratch is has something happened these straws like thawed out and put back in, where are they stored and is it just one BB bull that you are using?

cattle man

pakalasa wrote: »

How are you heat detecting?
Last year I had a lot of repeats but I put it down to the vasectomised bull I was using for the first time. He would detect heats after about 6 weeks or so, much earlier than normal. When the season was over, even though I had alot of repeats, the average calving date didn't slip back at all.

I remember someone else posting here (can't remember name) saying they had the same thing happen.

im using a 15month old bullock and he seems to have no trouble picking out cows often some cows were only calved 6-8 weeks and thy were ai 'd but they dont seem to be holding in the last 4 weeks the cows i ai'd 3 or 4 weeks ago over 50percent are repeatting.

today i got 3 cows ai'd 2 of which were ai'd 3 weeks ago and one of those was also ai'd 6 weeks ago. the other one was a cow calved sense 1st of april but was only coming inheat for the first time today

cattle man

funny man wrote: »

breed won't make a difference, but there are alot of variables when trying to get cows in calf, cow nutrition and health, on the other side that you have a competant ai operator. I ai my own cows and the only thing i can think off if every thing else is up to scratch is has something happened these straws like thawed out and put back in, where are they stored and is it just one BB bull that you are using?

all cows were given allsure boluses 6 weeks before calving and these are suppose to last 6 months so should be ok for minerals. we are using a range of different bb bulls and it is an ai technican do the ai'ing so im sure he nos what he s doing and keeps the straws and flask in top order i hope anyway:rolleyes:

jeff greene

Consider giving GnRH injection such as Ovarelin, Receptal at or just before breeding, ask you technician about it.

Also consider getting them scanned although a good AI technician will be able to feel something wrong.

whelan1

maybe let the bull in ... its strange that the heifers ai'd earlier held and the cows didnt

pakalasa

What way do you time the AI?
Do you always know when the cows are in standing heat?

Have a read through these;
http://www.boards.ie/vbulletin/showthread.php?t=2056096236
http://www.boards.ie/vbulletin/showthread.php?p=71273088

cattle man

jeff greene wrote: »

Consider giving GnRH injection such as Ovarelin, Receptal at or just before breeding, ask you technician about it.

Also consider getting them scanned although a good AI technician will be able to feel something wrong.

what does ovarelin or receptal do for them never heard of it before to be honest.

had vet out on wednesday and he scan some of the cow and could see nothing wrong with them couldnt give me a reason for them repeating.

cattle man

pakalasa wrote: »

What way do you time the AI?
Do you always know when the cows are in standing heat?

Have a read through these;
http://www.boards.ie/vbulletin/showthread.php?t=2056096236
http://www.boards.ie/vbulletin/showthread.php?p=71273088

ya normally if there waiting for the bullock or a cow in the morning then ai that evening and if waiting in the evening ai next morning

cattle man

what would be considered a normal percentage of repeats with cows using only ai

kennedy138

when the weather improves the cows will start holding again. weather is most important factor getting cows in calf . cold/freezing wind heavy showers temperature 2c here last night .cows stressed

LostCovey

cattle man wrote: »

what would be considered a normal percentage of repeats with cows using only ai

If everything is right (timing, AI man technique, semen handling & storage etc), then about 65% will go in calf, 35% will repeat. If you AI the repeats, again about 65% will go in calf, 35% will repeat, same for these repeats 65/35.

So if you have 100 cows, you could have 12 cows show heat 3 times despite insemination each time, and 4 show 4 heats, and 1 show 5 heats, and yet everything is totally normal.

Some people have trouble believing this but it is true.

LostCovey

pakalasa

LC,
I think those that value of 65% refers to dairy cows. Sucklers should be higher. Don't know the value?

john mayo 10

five out the 6 cows that have been ai'd so far have repeated on me this year. i would'nt mind but they all got high fertility boluses after they calfed and i have left buckets of lick in the fields with them. its a right pain in the arse

cattle man

john mayo 10 wrote: »

five out the 6 cows that have been ai'd so far have repeated on me this year. i would'nt mind but they all got high fertility boluses after they calfed and i have left buckets of lick in the fields with them. its a right pain in the arse

totally agree

its a right pain in the arse.:cool:

bogman_bass

are you vaccinating for lepto?

RobinBanks

bogman_bass wrote: »

are you vaccinating for lepto?

Bogman,

I was wondering about Lepto. Last year I got additional bloods taken to check cows for a whole lot of different diseases. When they all came up clear I didnt bother doing anything. Should I still vaccinate against Lepto? I am asking because I had 2 cows break after 12 weeks

john mayo 10

bogman_bass wrote: »

are you vaccinating for lepto?

i didnt vaccinate for lepto but was talking to the vet this morning and she advised me to have blood test done to see if anything comes up. she said it might be bvd of lepto

AI man123

Hi, no disrespect to your vet but i find a lot of vets lack practice and experience when it comes to reproductive scanning, get some one like Dr Dan Ryan(expertly scans about 500-700 cows per day) or one of his team to come in and do an assessment of your herd and that should get to the root of the problem.

bogman_bass

we vaccinated after an abortion last year and it made a huge difference to fertility. All bar 2 autum calvers held to first service and the two repeats held second time. Should have all calved in 6 or 7 weeks. Though in saying that I'm still waiting on two late spring calvers to come cycling