News and analysis on the global poultry
and animal feed industries.

Animal Nutrition Views

Ioannis Mavromichalis, Ph.D., gives his views on poultry, pig and dairy nutrition based on his experience as a nutrition consultant with clients around the world.

Anti-viral feed ingredients

One of my best customers asked me last week if there is anything we can add to pig feeds to make sure exposed animals will not get infected by the PED virus. Obviously, this is someone in the U.S., where pig producers are looking into anything that can help, given no cure or vaccine is currently available.
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PEDv Update offers news, updates on PED virus

There is a new PEDv Update “button” on the main web page. This is an initiative that gathers together all WATT stories, across all media (, Pig International eNews, Pig International, Feed International) and provides a one-stop solution for keeping updated on the porcine epidemic diarrhea (PED) virus.
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Soaring blood prices may plummet overnight

The U.S. is experiencing a reduction in market pigs due to the porcine epidemic diarrhea the PED virus. As pigs take about six months from birth to slaughter, and stocks of blood products destined for feed manufacturing (whole blood meal, animal blood plasma, and blood hemoglobin) take a few months to clear (or replenish), I find it reasonable for prices to be steadily increasing from now on.
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Protein quality in diets devoid of blood products

The ongoing crisis with porcine epidemic diarrhea virus (PEDV) in the U.S. has brought several nutritionists against the dilemma of removing blood products from their piglet formulas. In my experiences, working with diets free or with minimal amounts of animal plasma (and any other blood products), the following ingredients appear to work effectively in keeping dietary protein digestibility at the highest possible levels.
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From the lab to the feed database

In the last blog we discussed how each nutritionist/formulator finds one or more feed composition tables to use as a guide or first step in establishing a comprehensive nutrient database. But what happens once this preferred set of feed nutrient specifications is identified?
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Finding the perfect feed composition tables

Very recently, I received an email from a student asking me about the “perfect feed composition tables.” It reminded me of myself, many years ago, when as an undergraduate I was asking one of my professors the exact same question. His answer? He was still looking for them himself.
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Time to review feed formulas

In my years as a commercial nutritionist, I had made it a habit to review all my product formulas twice a year. Now that I work for myself, and I produce my own piglet feeds, I kept this routine and I use the slow time of December (and again in June) to review my formulas.
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