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61. Autumn ill thrift in grazing Ruminants. Part One - Possible nutritional challenges
Manage episode 477647864 series 3344726
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After a long, hot and often dry summer when pasture quality might be rather poor and in short demand, we’re always keen to see the onset of autumn rains. At last, we can expect improved amounts of pasture on hand and the silage wagon can be parked up for a while. Improved feed quality of autumn pasture is an added bonus, likely being much better than what stock have been grazing through the summer months. With the change of season from summer to autumn, pasture quality can shift dramatically from poor quality to very lush, leafy pasture. Why then, do sheep or cattle sometimes not do as well as they should, when they first meet this new, high quality autumn pasture? This is an issue often called (in a rather nondescript manner!) “Autumn Ill Thrift”.
This first of a two part podcast series will explore some of the nutritional reasons why grazing animals might not do as well as they should on this changeable autumn pasture. Not enough feed? Low dry matter percentage, low NDF/high NDFd, or the sudden lift in crude protein? Or more likely, a combination of multiple nutritionally-based factors.
Keep an ear out for part two of this two part podcast (episode 62) where we’ll continue this discussion around autumn ill thrift, by covering some of the animal health issues that might contribute to animals doing poorly during autumn months.
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