Various sources of methionine in broiler chicken rations

Ivan Koshchaev,Kristina Mezinova,Natalia Ordina,Olga Tatyanicheva,Antonina Ryadinskaya,D Rudoy,V Kankhva,A Olshevskaya

doi:10.1051/e3sconf/202021006009

Ivan Koshchaev, Kristina Mezinova + Show 6 more

Open Access

https://doi.org/10.1051/e3sconf/202021006009

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Abstract

Fodder methionine is one of the most important amino acids in animal nutrition, and its deficiency in the ration negatively affects productivity. Currently, the following sources of methionine are represented on the Russian market of feed additives: DL-Methionine and Methionine Hydroxy. Liquid form — Methionine Hydroxy Analog Free Acid (MHA-FA) and dry (for example, МНA) — calcium salt (MHA-Ca2+). The most popular sources of dry methionine are DL-Methionine and hydroxy analog as calcium salt. Many sources state that the bioavailability of the hydroxy analog varies from 65 to 72% (one of the manufacturers of the commercial hydroxy analog claims that the availability of methionine is 84%). The experiment was carried out on broiler chickens. As a result of the studies carried out, it can be argued that the content of DL-methionine in the ration (in the amount of 65% of the hydroxyanalogue) in comparison with MHA-Ca increases the productivity of broilers: preservation – by 4%; live weight by 4.3%; average daily gains by 4.6%; feed conversion decreased by 7.1%; has a positive effect on meat productivity. Based on the data obtained during the experiment, it follows that the efficiency of MHA-Ca does not exceed 65%, compared to DL-Methionine.

Highlights

IntroductionIndustrial poultry farming is one of the main sources of filling the meat and meat products sector in the Russian food market. [1]
At present, industrial poultry farming is one of the main sources of filling the meat and meat products sector in the Russian food market. [1]The main factor in maintaining the rate of production growth is still a further increase in production efficiency through the introduction of new technologies that reduce production costs, increase the viability and productivity of livestock, as well as a decrease in feed conversion. [2]Undoubtedly, the main goal is to provide the country's population with high-quality products in full, taking into account the prospects for export, as well as to achieve a high level of social and economic development of the poultry industry. *© The Authors, published by EDP Sciences
The analysis of upper table showed that the greatest indicators of the average daily gain in the period from 1 to 40 days were observed in the fourth experimental group compared to the second, where DL-Methionine was added to cover the need for this by 100%, by

Summary

Introduction

Industrial poultry farming is one of the main sources of filling the meat and meat products sector in the Russian food market. [1]. [5] The rational use of protein by the poultry body depends on the balance of its amino acid composition and the level of availability of amino acids from feed. Their various combinations determine a great variety of properties and quality of proteins About half of these amino acids can be synthesized in the body of the bird. Amino acids that can be synthesized in the body of a bird in an amount that meets the needs of the body to maintain its normal existence and for the formation of products are called non-essential. These amino acids include alanine, glutamic acid, aspartic acid, hydroxyproline, proline, serine, and glycine. Many sources claim that the bioavailability of the hydroxy analog varies from 65 to 72%

Materials and research methods

Research results and discussion

Preservation by groups

Live weight by group and ration

Findings

Conclusions