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Implement Alley Discussion Forum

Protein, Rained on Hay

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txblu

06-14-2004 07:48:33




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I thought about getting my rained on hay protein tested by the local ag agent but it was Saturday.

Just wondering if anyone has ever had normal hay protein tested and then had some of the same field get rained on to see just what the difference is.

The age old story of cut it and get it wet vs wait till it's dry has been around a long time. I know wait till it's dry sucks, but was wondering about the rain.

Bet lots of others would like the answer too.

Mark

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kyhayman

06-14-2004 18:30:59




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 Re: Protein, Rained on Hay in reply to txblu, 06-14-2004 07:48:33  
Very little change in protein content b/c of rain (maybe 2%). What is really effected is TDN (about 10%). Protein is limiting in hay only when it is cut too late in the season, energy (TDN) is rarely limiting in early cut hay but can be extremely limiting in late cut. Protein costs more per pound than energy to suppliment BUT a cow needs a lot more energy in her diet than protein.



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Allan in NE

06-14-2004 19:00:37




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 Re: Re: Protein, Rained on Hay in reply to kyhayman, 06-14-2004 18:30:59  
Ky,

Hmmmm, Depends how she makes her living.

I'd tend to agree with you if she is just throwing a calf and trying to keep warm in the winter time.

But, if she is being run thru a herringbone two or three times a day for two thirds of the year & is pumping 100+ pounds of milk a day, she needs all the protein she can get. All this in addition to producing a calf.

This is the reason why dairies throw straight alfalfa at 'em instead of a grass or grass mix in addition to all that expensive corn and supplement, etc. I. E. High protein diet.

As usual, just my opinion,

Allan

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kyhayman

06-14-2004 19:20:51




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 Re: Re: Re: Protein, Rained on Hay in reply to Allan in NE, 06-14-2004 19:00:37  
True, and good point. She is still going to need more pounds of energy than protein, though (reference 7th ed NRC for Dairy Cattle). TDN is not the best measure of energy (I use it b/c most folks have a better understanding of it than NE(l)). Alfalfa is a good choice b/c it has a high NE(l) content of starches as well as (potentially) high crude protein. If corn silage is available in the diet (as the primary energy base) rain damaged alfalfa would be an excellent protein source. If alfalfa silage is the main energy source in the diet (as is becomming more common here) then rain damaged alfalfa would be a less desireable source and should be replaced with a cheaper energy source . Down side to neglecting energy at the expense of protein is placing (particularly the dairy cow) on a bovine version of the Atkins diet. One of the prime set ups for the cow to begin fat metabolism and ketoacidosis (every notice the breath of someone on the Atkins diet, reeks of ketones). If the dairyman is using a good ruminant nutritionist that is on top of the feed situation they sodium bicarbonate can be increased in the feed. If not, a huge train wreck.

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txblu

06-15-2004 06:36:15




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 Re: Re: Re: Re: Protein, Rained on Hay in reply to kyhayman, 06-14-2004 19:20:51  
Well guys thanks for the technical expose, but in layman's terms I have:

1. Mixed grasses (coastal, dallis, maybe a tad of millet), weed free and 300# balanced fert + Kmag and supplemental minerals.Teddered after cutting and again after any rain. Then raked twice and square baled usually at 2 week intervals.

Is your nose any help; i.e. if it smells good (not quite like non-rain hay but not rancid either)did it loose any bang for horses?

2. Haygrazer sorghum, cut at the first sign of a boot in any stalk (weather permitting). Swather/conditioner cut and at 1/2 cure 1 rake and 1 more at full cure; round baled and field stacked end to end for cow/calf bovines on pasture.

Appreciate your help.

Mark

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kyhayman

06-15-2004 07:00:13




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 Re: Re: Re: Re: Re: Protein, Rained on Hay in reply to txblu, 06-15-2004 06:36:15  
Nutritionally you didnt lose much for horses except marketing. For me, in this market, I couldnt give rained on hay away to horse people (but I feed it to mine just fine). Depends on how short the hay situation gets in your part of the world and how cheap you are willing to sell it.

I would be concerned about the millet. Some interesting reading in 'Southern Forages' on the relationship of some unidentified toxins in millet causing knee inflamation.

I'd love to have that haygrazer rolled and wrapped as round baled silage! Sold some Sudex baleage last year at a strong premium. Fed some to my cows and they acted like it was so good they could smack their momma.

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txblu

06-15-2004 08:05:30




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 Re: Re: Re: Re: Re: Re: Protein, Rained on Hay in reply to kyhayman, 06-15-2004 07:00:13  
Interesting point you made about smacking good hay. I found that cows prefer sudan even if it looks like garbage to you. It's said to be sweet (how do we know) and that must be it. I can put a roll of coastal or the hay mentioned in my post side by side and they will hit the sudan every time, even though it is full of stems.

Thanks for the reply.

Mark



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