Feed Strategy - May 2018 - 36
36 ❙ FeedStrategy
ANTIBIOTIC-FREE ANIMAL PRODUCTION
optimal use of the protein source and amino acids. The
formulation is simulated in the corresponding software
and approved in practice. However, diets often still include
an excess of protein, producing a negative impact on performance and on the farm climate (e.g., ammonia).
The formulation of diets for young animal nutrition in
particular needs more attention. Some of the ingredients
are still underestimated. The effects of additives like
specific acidifiers as well as optimal mineral and trace element usage (e.g., magnesium oxide, limestone or zinc oxide have a high buffering capacity with a negative impact
on digestion) are essential. Further, we should also use
modern phytases to reduce the mineral content of the diet
and anti-nutritive effects of the ingredients.
Formulation of an ideal feed will positively influence
the upcoming animal welfare discussion. For instance, reducing ammonia will lead to reduced respiratory diseases,
and increased litter quality to better general animal health.
Buffering capacity of
different raw materials
[meq HCl, pH 3]
Meat and bone meal
Source: Dr. Eckel Animal Nutrition
Additives, such as acidifiers, minerals and trace
elements (e.g., magnesium oxide, limestone or zinc
oxide) that have a high buffering capacity with a
negative impact on digestion, are essential to digestion.
Manage and optimize nutrient intake
Managing feed and nutrient intake is the most
critical challenge for nutritionists, due to the specific pressure they are subjected to. As most antibiotic
growth promoters (AGPs) have activity against primarily
gram-positive bacteria, AGP alternatives that target grampositive bacteria (with minimal risk of resistance) with
established and advantageous sub-inhibitory effects and
some appropriate immunomodulatory properties may provide the best candidates to pursue further.
Immunomodulation shifts interest to inflammation.
Inflammatory responses result in a series of biochemical,
physiological and behavioral changes that impact nutrient
intake and absorption with a consequent decrease in profitability and productivity. The most important influence
www.WATTAgNet.com ❙ May 2018