Influence of sapropel on the activity of intestinal peptidases of broiler chickens

IF 0.3 Q4 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Journal of the Indonesian Tropical Animal Agriculture Pub Date : 2021-02-02 DOI:10.14710/JITAA.46.1.67-74

V. Kuz’mina, E. Skvortsova, E. Pivovarova, A. Bushkareva, U. A. Vostrova, A. V. Poltoratskaya

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引用次数: 1

Abstract

At the beginning of the experiment, the weight of weekly cockerels of the Hisex White egg cross (n = 90) was 64.6 ± 0.47 g. At the age of one week old, 3 groups (30 birds in each group) were formed. They received complete feed. The first group served as a control. The chickens of the second and third groups received combined fodder, in which 3% and 5% of the feed weight was replaced with dry sapropel. The dry sapropel (3% of the daily feed weight) increased the activity of casein-lytic and hemoglobin-lytic peptidases in the chyme by 1.5 ( Р <0.05), in large intestine mucosa by 1.3 ( Р <0.05) and in small intestine mucosa by 1.7 times ( Р <0.01) compared with the control. The increase of sapropel concentration in feed up to 5% did not lead to a further increase in the activity of peptidases. The activity of peptidases were minimal at pH 5 and pH 12 and reached maximal at pH 7–8. The optimal dose of dry sapropel introduced into the diet of chickens to that stimulated the digestive processes is 3% of the mass of feed.

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腐泥对肉鸡肠道肽酶活性的影响

在实验开始时，Hisex白蛋杂交公鸡（n=90）的周重为64.6±0.47g。在一周大时，形成3组（每组30只）。他们收到了完整的反馈。第一组作为对照。第二组和第三组的鸡接受混合饲料，其中用干腐泥代替饲料重量的3%和5%。与对照组相比，干腐泥（每日饲料重量的3%）使食糜中的酪蛋白裂解肽酶和血红蛋白裂解肽酶的活性增加了1.5倍（Р<0.05），使大肠粘膜中的酪蛋白水解肽酶和血红素裂解肽酶活性增加了1.3倍（Р<0.05）和1.7倍（РP<0.01）。饲料中腐泥浓度增加至5%并没有导致肽酶活性的进一步增加。肽酶的活性在pH 5和pH 12时最小，在pH 7-8时达到最大。将干腐泥引入鸡的日粮中以刺激消化过程的最佳剂量为饲料质量的3%。

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来源期刊

Journal of the Indonesian Tropical Animal Agriculture AGRICULTURE, DAIRY & ANIMAL SCIENCE-

CiteScore

1.10

自引率

0.00%

发文量

审稿时长

8 weeks

期刊介绍： Journal of the Indonesian Tropical Animal Agriculture (JITAA) is a double blind peer-reviewed publication devoted to disseminate all information contributing to the understanding and development of animal agriculture in the tropics by publication of original research papers. The journal covers all aspect relating to Animal Agriculture, including: -Animal breeding and genetics -Animal feeding and nutrition -Animal reproduction -Animal biotechnology -Animal physiology -Animal production and technology -Animal products technology -Animal management and economics -Animal products processing and animal by-products -Animal microbiology -Livestock farming systems -Other related topics in relation to animal science. The topics of research are not only on Indonesian tropical animal agriculture, but also on other tropical regions of the world.