Alexandra  Borisovna Vyshtakaliuk, Vladimir  Vasilievich Zobov, Vladimir  Fedorovich Mironov, Lubov  Gennadievna Mironova, Salima  Tachiatullovna Minzanova, Sergey  Sergeevich Khirug, Stanislav  Sergeevich Khirug, 
    Influence of Pectin Contained in and Extracted from Phytomass of Amaranthus cruentus L.
on Erythropoiesis and Growth Performance of Commercial Layer Replacement Chickens,
    Journal of Animal and Veterinary Advances,
    Volume 18,Issue 10,
    2019,
    Pages 298-308,
    ISSN 1680-5593,
    javaa.2019.298.308,
    (https://makhillpublications.co/view-article.php?doi=javaa.2019.298.308)
    Abstract: The aim of this study was to investigate the
influence of feeding rations with different nutritional
value, that included either the grass meal of
<em>Amaranthus cruentus</em> L. (AGM) or products of AGM
hydrolysis-extraction enriched with pectin or purified
amaranth pectin, on the indices of erythropoiesis of
commercial layer replacement chickens, their growth
performance and liveability. Chickens had some
dysfunctions in the erythropoiesis during the period of
intensive growth, accomplished with the higher spending
of iron or due to the change of composition and nutritive
value of the ration. The therapeutic and prophylactic
effect of all above mentioned products on erythropoiesis
of chickens has been reviled. It was indicated by the
increased hemoglobin concentration, number of
erythrocytes and normalization of a single erythrocyte&#146;s
indices. Moreover, the use of AGM and its products of
hydrolysis-extraction resulted in the elevated growth
performance and liveability of young pullets. The
dose-dependent effects of investigated feed ingredients:
AGM, its products of hydrolysis-extraction and purified
amaranth pectin, on the erythropoiesis and growth
performance in chickens were evaluated. It was
demonstrated, <em>A. cruentus</em> pectin, contained in its
phytomass as a protopectin or extracted from the
phytomass as a soluble pectin have a stimulating effect on
the erythropoiesis and positive effect on the liveability of
chickens but does not affect their plastic metabolism. The
promoting effect of AGM and its products of
hydrolysis-extraction on the weight gain of replacement
chickens is determined by the other biologically-active
substances of non-pectin origin that are present in
amaranth. Products of AGM hydrolysis-extraction enriched with pectin areconsidered as a new
therapeutic and prophylactic feed additive that is much
more effective than the raw materials used for their manufacturing. These products significantly increase the
efficiency of chickens and improve their functional state
that is indicated by the recuperation of erythropoiesis.
    Keywords: amaranth;nutrition;growth intensity;erythropoiesis;Replacement chickens;pectin;hydrolysis-extraction