FEED GRADE AMINO ACIDS:


for more sustainable animal farming and meat production By Maréva Bourgeois, Technical Sales Manager


Bourgeois_mareva@eli.ajinomoto.com


AJINOMOTO ANIMAL NUTRITION EUROPE (AANE), previously AJINOMOTO EUROLYSINE S.A.S., French division of AJINOMOTO ANIMAL NUTRITION GROUP. Inc based in Japan, has for many years been studying amino acids nutrition, such as the ideal protein concept and its practical implication: reducing the crude protein (CP) levels in feeds. A pioneer in this field, AANE has four amino acids for feed use in its portfolio: L-Lysine, L-Threonine, L-Tryptophan and L-Valine.


Economically Raw materials prices and especially soybean meal are highly volatile. Lowering crude protein levels in feeds is an effective tool to decrease the incorporation of soybean meal, to reduce feed costs and to use more local feedstuffs. Let’s talk about a concrete formulation exercise to save feed cost and reduce soybean meal. Two formulas: the same level of digestible lysine and energy, but


formulating with or without minimum of CP (20% CP for the minimum). On average, formulating without a minimum of CP helps to reduce CP by 1.3 points, soybean meal by 43kg/T and price by 4.8€/T.


Environment


Formulating low CP diets leads to a reduction in nitrogen excretion. For example, INRA (Meda et al., 2017) Figure 1, carried out a


life-cycle assessment: comparison of environmental impacts with two diets, 19 and 16% CP in finishing broiler diets. With low CP diet, the impact of broiler meat production on climate change, acidification, and eutrophication decreased by 8, 7 and 5% respectively. Generally, a lowering the CP by 1 % point corresponds to a reduction of 10% of nitrogen excretion (broiler feed).


Figure 1: Life Cycle Analysis: Impacts for 1 kg of broiler at farm gate, Méda et Al. (2017)


Society Amino acids nutrition has the ability to respond to societal demands concerning animal welfare. By limiting nitrogen excretion, litter quality is improved. This will


directly result in a decrease in frequency and severity on both foot pad dermatitis and necrotic enteritis. What’s more, Valine, as a branched chain amino acid, is one of


the components as a calcium carrier. With a supplementation level of L-Valine to reach a ratio higher than 80% SD Val:Lys, deposit of calcium in bone is improved.


What’s new about amino acid nutrition? In 2013, in collaboration with INRA (Gloaguen et al., 2013), AANE presented an ideal amino acid profile for piglets. Those profiles are also available for grower pigs and broiler. It is well known that Tryptophan (TRP) could regulate piglet feed


intake. In 2004, a trial demonstrated (Ettle and Roth) that piglets are able to sense the dietary amino acids pattern and to choose the most balanced diet. Trials about Valine deficiency lead to the same conclusion. Valine is the fifth limiting amino acid for piglets after TRP. A diet


deficient in valine is rejected by piglets. In 2013, Gloaguen and al., Figure 2 proposed two diets: 70 % SID (standardized ileal protein) Val:Lys, recommended value, and 60 % SID Val:Lys, a deficient diet. With the deficient diet, rejection of the diet appears within two days and daily feed intake decreased by 13% compared to the balanced diet. Rejection of the diet resulted from a decrease in the number of meals.


Figure 2: A diet deficient in Valine is rejected by piglets, Gloaguen et al. (2013)


-13%


(CC )


(EU )


(AC )


PAGE 56 NOVEMBER/DECEMBER 2018 FEED COMPOUNDER


(NRE)


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68