Cost-effective feeding strategy for cattle: increasing dietary urea in combination with Silvafeed® Bypro

Published on: 06/28/2017
Author/s : Claudio Cabral

The optimisation of the use of nitrogen (N) in ruminants diet can be highly valuable in terms of profitability and sustainability of any farm. In this study it has been assessed the use of economical source of nitrogen in combination with natural plant extracts, mainly tannins, which can influence protein metabolism in the rumen.Ruminants can make use of certain non-protein nitrogen (or NPN) compo...

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Dr. N.r.sarker Dr. N.r.sarker
Animal Nutritionist
June 28, 2017

In the design of the experiment, it is observed that the author does not keep any control group, only compared levels urea inclusions with Silvafeed. The basal diet, i.e, grass portion was chopped pasture but didn't mention the type of pasture. However, the results of the work may be helpful to the farmers.

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June 28, 2017

The single most issue being faced by the livestock farmer is a higher cost of production than the return from the product. The writer has rightly shown the proper and sustainable way to be cost effective I'm already using formulation based on urea reducing the cost of the feed on my 900 Sahiwal cows successfully. I'm of the opinion to continue this research towards cost effective inputs to make livestock production sustainable.

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Akmal Hassan Akmal Hassan
Veterinary Doctor
June 29, 2017
Thank You for This Informative Article
But Please My Observation this trial Done on Feedlot animals ( Holstein steers ) in which we can playing more in Formulation to save more cost and achieving maximum profit by using ( NPN) Like Urea and Another feed By Product
but Highly Producing cow we use NPN and another by product very carefully to not affect performance , Production and fertility
So please if you have some researches on highly producing dairy cow please share

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Herry Sonjaya Herry Sonjaya
Research
June 30, 2017

It's important for the farmer livestock, how much the price of formulated ration compared to the added value resulting from new formulated ration, beside the effectiveness of new feeding.

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Dr. Rama Prasad Chakraborty Dr. Rama Prasad Chakraborty
Specialist in Animal Nutrition
July 3, 2017
I have gone through the study which seems to be a paltry projection of details as talked about in earlier columns by the different fraternity.Not clear about emphasising urea inclusion in presence of Soyabean flakes which in turn not advisable to be conjoined with urea in any point of time following the content of urease in soya, to catalyse the release of ammonia fast in ruminal ambience.The proper mineral balance with bioavailable sulphur along with soluble carbohydrate in tandem would be in demanding during use of soya and urea in tandem.Moreover, the forage quality is yet to cast a spell in the process of assimilation. All study should bear a prudent and healthy approach and they are looked to be absent here.
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Mark J. Schokking Mark J. Schokking
Associate Diploma in Agriculture (AG.BUS)
July 3, 2017
While the trial is interesting, it is my experience that you're only presenting part of the story. Maximizing NPN sources is entirely dependent upon the net fermentable carbohydrate profile available, while maintaining adequate peNDF.
I believe a trial with a fixed level of NPN (say 1.5%bw) and a variable level of ferm. carbs (ie. 23-28) would better illustrate the dynamics of rumen NPN utilization.
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prakash kulkarni prakash kulkarni
B. V,Sc & A .H .
July 3, 2017
There is no control group in the experiment so difficult to comment
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September 13, 2019
prakash kulkarni I think so too.
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July 4, 2017

When urea with silvafeed @bypro used whether the BUN levels are changing in to increase urea. since it directly affects conception rate and intercalving period will increase to great extend and may put dairy farm in heavy loss.

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Viswanatha Reddy Viswanatha Reddy
Veterinary Doctor
July 4, 2017
04/07/2017| There is every possibility of decreasing the Uterine pH below 7 when 2% urea is added in the concentrate feed which can lower the pregnancy rate. In addition to this if there is zinc deficiency it causes cracking of skin starting from hind limbs beyond hock region as well on the fore limbs. To over come skin lesions zinc oxide 10 grams per day 10 days was given in several small herds in Mangalore district of Karnataka State in India. This treatment responded.
Nowadays very few people are interested to buy organic milk and the trend is increasing gradually At one point we have to feed animals with out urea in the feed and not using urea as a fertilizer for fodder and cereal crops at a later date. V N Viswanatha Reddy Retd Professor Animal Reproduction, Bangalore
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Claudio Cabral Claudio Cabral
Veterinary Doctor
July 4, 2017
Dear Prakash Kulkarni,

Regarding your comment:
03/07/2017 | There is no control group in the experiment so difficult to comment

We used the 1% Urea Treatment as control group since it is the habitual feeding treatment
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Claudio Cabral Claudio Cabral
Veterinary Doctor
July 4, 2017
Dear Dr.Harish Bhongade,

Regarding your comment:
04/07/2017 | when urea with silvafeed @bypro used whether the BUN levels are changing in to incre urea. since it directly affects conception rate and intercalving period will increases to great extend and may put dairy farm in heavy loss.

This essay is on fattening animals over 100 days. Still, Silvafeed Bypro has shown to reduce rumen digestibility of the protein and urease activity on ruminal liquor witch leads to no increase on BUN levels that could decrease progesterone levels and rediuce fertility
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Claudio Cabral Claudio Cabral
Veterinary Doctor
July 4, 2017
Dear Herry Sonjaya,

Regarding your comment:
30/06/2017 |
It's important for the farmer livestock, how much the price of formulated ration compared to the added value resulting from new formulated ration, beside the effectiveness of new feeding.

The intention of adding Silvafeed Bypro to the diet is lowering production costs by making available more proteing and urea to the animal, improving productive parameters with no addition of proteing or even reducing it. The cost of each diet additive may vary depending on time and location
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Miltos Hadjipanayiotou Miltos Hadjipanayiotou
Animal Nutritionist
July 4, 2017
Can you provide me with research findings based on Silvafeed R ByPro with dairy cattle feeding, and/or in vivo/in situ studies on its effect on rumen protein degradability of conventional protein sources (soybean meal, sunflower meal, rape seed meal etc).

Is the product cleared for use in EE?
Can you give me a rough estimate of the product's cost??
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November 3, 2019

How much urea does "disappear" or converted to ammonia in a wet diet by its bacteries? Asked differently: How much urea does reach the rumen after getting mixed in a regular 40% DM ration?

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