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Managing Grassland After A Drought

During the drought some fields have been grazed and others shut off in the hope of a possible second cut etc.  Where grass has been grazed, either by set stocking or rotational grazing, the lack of moisture has forced it to continually draw on it’s root reserves and deplete them.

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Dip in Summer Growth

Grass is a great asset for feeding and when managed well can produce high liveweight gains from cattle. However, as we move through summer it is important to remember that grass will start to become more fibrous.

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Type Of Feed To Use In Calf Creep Feeders

In summer, calves will be consuming milk and grass so on average a creep feed with 14-16% crude protein (as fed) and 12.5MJ metabolisable energy/kg DM should be adequate. As creep feed is usually made available from a feeder with a hopper it is effectively available ad lib so care is required to prevent rumen acidosis

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Why To Creep Feed Spring Born Suckled Calves?

When a calf is 4 months of age half of its nutritional requirements should be met by forage and concentrates rather than milk. Supplying creep feed before weaning can help smooth the transition from pre- to post-weaning and the extra source of nutrients can compensate for the reduction in milk yield as lactation progresses.

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Prolonged Dry Weather On Grass

The current heatwave that we have been experiencing won’t in itself restrict the growth of the principal grass i.e. ryegrasses.  In fact, their optimum growth temperature is 25 C.  The main issue is lack of soil water.

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Warning: Heat Stress, Sheep

Perfect summer weather but be on the lookout for heat stress in sheep e.g. an extended neck and increased panting, even when standing still.  If a sheep’s body temperature continues to increase, it will eventually collapse. 

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Warning: Heat Stress, Beef Cows

The bovine thermal comfort zone is -13oC to +25oC.  Above this upper level, cattle will start to suffer some degree of heat stress.  Cattle naturally minimise exertion to stay cool.  High temperatures will also have some effect on sperm quality and even embryo viability – each of these being hugely important in the middle of the main beef-breeding season.

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