Generation5 - we start April @20th and stop 1st of June, on pasture (grass banked from last year). Don't have much to assist if you have the right cows under these conditions - maybe 2% max in a normal year. Winter calving comes at a huge additional cost in addition to the labour, bedding and housing facilities as your peak nutritional needs immediately pre-calving then peak lactation and rebreeding are all done on conserved feed during the coldest months of the year. Just never made any sense to me. We wean later and background everything rather than selling calves in the fall.
We are increasing our fall calving herd at the moment - always had some but want more. Calving mid Aug-end September gets you even better weather to calve in than late spring, don't tend to get the scours you do in spring, never get pneumonia issues at weaning and counter intuitively conception rates in November are excellent but this system requires that you have good grass through the fall. If the pasture was bare in July it's not going to work. Cows are milking through the winter this way but peak lactation is behind them when the coldest weather hits. Doesn't take great feed to bring the cows through and they have all summer to gain back condition. Selling light weight calves in May to go to grass is usually a good market.
We are increasing our fall calving herd at the moment - always had some but want more. Calving mid Aug-end September gets you even better weather to calve in than late spring, don't tend to get the scours you do in spring, never get pneumonia issues at weaning and counter intuitively conception rates in November are excellent but this system requires that you have good grass through the fall. If the pasture was bare in July it's not going to work. Cows are milking through the winter this way but peak lactation is behind them when the coldest weather hits. Doesn't take great feed to bring the cows through and they have all summer to gain back condition. Selling light weight calves in May to go to grass is usually a good market.
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