C16:0 or Calcium soap for my cows? Humble comments for the frequently asked questions

Published on: 03/05/2018
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March 5, 2018
I have made comparison in my client farm. The Calcium soap tend to increase the milk yield but lower in milk fat compare to c16:0 which higher in milk fat with litle lower in milk yield. Meanwhile Calcium soap was believed tend to reduce feed palatability due to the soapy odour
Alfredo J. Escribano Alfredo J. Escribano
PhD in Animal Production
March 10, 2018
Results depend a lot on previous diet and current cows milk yield and milk quality.

As you said: palatability "belief". The parameters worthy of attention are profitability, ROI and feed efficiency, not DMI as such.
Joe Magadi Joe Magadi
Manager
March 6, 2018
Interesting observation. However, let's remember that at the feed rates above the fat supplementation is less than 2% of the total dry matter. In order to get the fat % right the whole ration must be examined particularly with regard to fibre index.

C16 on its own may increase milk fat but if not carefully balanced with the rest of the nutrients can reduce fat digestibility and exacerbate loss in body condition which is not good for cow health and fertility. Current thinking is to look at the fat supplementation through the lens of overall fatty acid composition to be able to maximise fat utilisation and productivity. We find feeding C16 in combination with C18:1 and long chain omega-3 fatty acids a better better approach to fat supplementation and utilisation.
Alfredo J. Escribano Alfredo J. Escribano
PhD in Animal Production
March 10, 2018
Joe Magadi I agree, the balance of fatty acids to optimize digestibility, as well as choosing the most efficient and profitable feed strategy for every far is the key. No general recipes are valid.
Harish Dharne Harish Dharne
Specialist in Animal Nutrition
March 14, 2018
Alfredo J. Escribano

Dear Sir,

In India we have tried C16:0 80 % and remaining 15 % C18:1 and C18:2 is giving excellent results. The milk yield, milk fat is better than the calcium based fats.

Alfredo J. Escribano Alfredo J. Escribano
PhD in Animal Production
March 14, 2018
Harish Dharne better results regarding also BCS and fertility parameters?
Was it more cost-efficient?
Under which milk quality and milk yield scenario?
Can you please share more data?
Rudra Desai Rudra Desai
Ph. D. fine chemicals and pharmaceuticals
March 14, 2018
Instead of feeding ready made fat salts why don't you feed the precursors required to bio-synthesize the fats required as energy source. It doesn't matter either 616-c18 or otherwise etc.
April 5, 2018

I examine the different level of ca soap in concentrate ration, more than 2 % cause decline in milk fat %. Please tell me either it is due to some disturbance in fiber fermentation or any other reason behind that.

Rudra Desai Rudra Desai
Ph. D. fine chemicals and pharmaceuticals
April 5, 2018
It is very unnatural that people do not understand the composition of fatty acid salts of Calcium as they enhance acidity and reduce milk fat because ofvSARA and its impact directly affect fat %in milk
Rudra Desai Rudra Desai
Ph. D. fine chemicals and pharmaceuticals
April 5, 2018
no need to add ca fatty acid salts as if buffering agents are used need not be necessary
April 7, 2018

Rudra Desai but Sir, I am just asking its effect on ph of blood that's slightly toward acidic. That can also interfere with Dcad balancing

Joe Magadi Joe Magadi
Manager
June 21, 2018
Interesting discussion. First of all with regard to fatty acid composition, one ought to aim for the right blend to be able to optimise cow performance in terms of health, fertility and milk production. C16:0 is good for milk fat yield, has positive impact on NDF digestibility, but does not seem to improve milk production. It tends to exacerbate loss in body condition. Also in early lactation, Palmitic acid can increase in concentration within the blood NEFA and is capable of activating white blood cells at high concentrations in blood, thus being pro-inflammatory.
C18:0 is mainly oxidised to produce energy for milk production but is the least digestible and as well affects overall fat digestibility.
C18:1 is the most abundant of the fatty acids in the adipose tissue and is used in the mammary gland to modulate milk fluidity. Monoglyceride form of oleic acid acts as an emulsifier and promotes fat digestion. It is also in high concentration in the digital pad and its short supply in early lactation could worsen lameness.
Polyunsaturated fatty acids in particular omega 3s eicosapentanoic acid EPA, and docosahexanoic DHA are essential for immune function because their metabolic products affect different steps of the anti-inflammatory processes. Unavailability of these necessary fatty acids may therefore promote immune dysfunction in dairy cow. The fatty acids are also known improve production of progesterone which is essential for embryo viability.
Like with amino acids in protein, consideration should be given to fatty acid composition of dietary oils and fats if indeed the cow has to benefit from the nutrients due to specific roles of individual fatty acids.
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