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Please use this identifier to cite or link to this item: https://rep.polessu.by/handle/123456789/32482
Title: Взаимосвязь качества протеина рационов с использованием питательных веществ рационов бычками при выращивании на мясо
Authors: Ковалевская, Ю.Ю.
Цай, В.П.
Лемешевский, В.О.
Ярошевич, С.А.
Сергучев, С.В.
Keywords: calves
rumen
digestion
protein
degradation
Issue Date: 2011
Publisher: Maximovca : Print-Caro SRL
Citation: Взаимосвязь качества протеина рационов с использованием питательных веществ рационов бычками при выращивании на мясо / Ю.Ю. Ковалевская [и др.] // Realizări şi perspective în zootehnie, biotehnologii şi medicină veterinară : culegere de lucrări a simpozionului ştiinţific cu participare internaţională consacrat aniversării a 55-a de la fondarea Institutului, Maximovca, 6-8 octombrie 2011 / Academia de ştiinţe a Moldovei, Ministerul agriculturii şi industriei alimentare, Institutul ştiinţifico-practic de biotehnologii în zootehnie şi medicină veterinară [et al.]; editorial Board: V. Focsha [et al.]. – Maximovca : Print-Caro SRL, 2011. – С. 379-382.
Abstract: The aim of the research was to study the performance of rumen digestion of calves by using feeds with different protein degradability. It is determined that a decrease in the level of protein degradation due to changes in the percentage ratio of DP:NDP at 9 and 12% in animals of II and III experimental groups increases the concentration of VFA at 15 and 13% in comparison to similar control group. The greatest number of ciliates was observed in animals of II and III experimental group, which is 15% higher than this figure, relative to control one. Reduction of degradable protein by 9 and 12% in the diets of animals of II and III experimental groups leads to a decrease in ammonia levels by 17 and 15% relative to control one. Ratio of DP:NDP 72:28 in diets of animals of I control group led to the waste of feed protein, as evidenced by low levels of total nitrogen in the rumen contents.
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