To follow on from the last weeks update, the expected reduction of growth rates didn't materialise on most farms with levels recorded similar to the previous week. A continutation of high growth is welcomed allowing further surpluses to build - as long as you can identify the surplus and react accordingly. Remember, when closing paddocks for silage, set the farm demand at a realistic level until the aftergrass comes back into the platform.

The outlook for growth for the coming week appears to be good with mild air temperatures but some extended periods of rain mid-week. It is prudent to budget for similar growth rates as the week and again keep rotation length between 18-20 days.

The past ten days has also seen a reduction in milk yield on most farms. With no individual reason for this reduction, it is likely due to a number of factors including:
Lower grass dry matter - now down to 14-15% compared to 18-19% in June. Fresh weight must be significantly higher at lower dry matter levels to compensate
Lower suger levels in grass - due to less daytime sunshine.
Continued periods of wet weather means the cows are "huddling in the paddocks" and eating less. When they are wet and colder, more energy is directed towards maintaining body temperature.
Natural decline in milk yield for stage in lactation.

So the question is now being asked - should you be feeding concentrates at this time? The simple economics of the question can not be avoided. Assuming a milk price of 22c/l and a response approximately 0.7 litres/kg concentrate fed, then the concentrate price must be less than 15c/kg or €150/tonne. Some farmers are forced into grazing grazing heavy covers with alot of stem - the response to concentrate on these swards is likely to be slightly higher. However, for many, it is the burden of cashflow which is the main stumbling block this year - feeding expensive concentrate with little return will exasperate the problem.

For those still short of winter feed, forage rape can be a valid alternative. Its cost effectivness is dependent on its yield potential - approximately 7 tDM/ha can be achieved and is more likely if sown early. The high soil temperature and soil moisture levels are ideal for germination and establishment - take advantage of them now.