Discussion created on 05/16/2011

metabolic energy for cattle

Forum: Metabolic energy for dairy cattle

Hi Has anybody known that metabolic energy for dairy cattle which is generated by Cornell Universty?

Duygu Ekin
Agro Engineer Zootechnist
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May 18, 2011

Interesting question about Metabolic energy for dairy cattle. I use the CNCPS model from Cornell, Penn State and MIner institute. The program works well --often times it will give you insight to what will happen in your herd if you know how to watch the numbers that it computes. I have used it for about three years now. It does calculate for net energy and metabolizable energy levels.

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Dr.P.George Kunju John Dr.P.George Kunju John
Feed Consultant
May 19, 2011
Dear Sir,
I have gone through CNCPS computer program and has found several problems in executing. They advised me to wait till they perfect it. It would assist to evaluate the formula with its massive data bank. However it can't compute a ration or feed. may be they will perfect it.

The only energy unit that could be accepted for formulation today is ME even though it has enough limitations for ruminanats. The energy availability also controls the rumen metabolism. The end products of rumen fermentation varies and therefore the ME may also vary. The actual derivation of ATP controls the microbeal cell production. The new technology of bypass fat, starch and sucrose has to be considerd for ME at the lower tract. Any way it would be better than old TDN method.

I was trying to estimate GE through bomb calorimeter for feed and feaces to calculate the energy retained. It is then compared with the enery utilised for production and growth. Any way a better method that is reproducable in ordinary lab would be a break through in ruminant nutrition
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Mustafa ozmisir Mustafa ozmisir
Beef producer
May 19, 2011
http://jas.fass.org/content/70/11/3578.full.pdf
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Duygu Ekin Duygu Ekin
Agro Engineer Zootechnist
June 7, 2011
Thank you very much. I think I need to buy this programme to use this formula. I have tried to download it many times but I couldn't make it run.
I need to find the metabolic energy formula for dairy cattle a.s.p.
If anybody help me, I would be glad.
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September 3, 2019
If it is ok I want to know how to control metabolic energy for dairy cattle?
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