ВІДТВОРЮВАЛЬНА ЗДАТНІСТЬ, ПРОДУКТИВНІСТЬ ТА ЯКІСТЬ МОЛОКА КОРІВ ПІСЛЯ ЗАСТОСУВАННЯ БІОЛОГІЧНО АКТИВНОГО ПРЕПАРАТУ
Ключові слова:
відтворювальна здатність, корови, тільність, якість молока, біологічно активний препарат, сухостійний період.
Анотація
У зв'язку з низькою плодючістю великої рогатої худоби вчені та експерти приділяють значну увагу проблемам репродуктивної здатності тварин цього виду. Крім того, як і в усіх ссавців, народження потомства у дійних корів призводить до лактації, що призводить до багатьох морфофункціональних змін у нейроендокринній регуляції обмінних процесів в організмі самки, що негативно позначається на ознаках репродуктивної здатності корів. Але існує й інша проблема, якій більшість вчених приділяють мало уваги – це вплив процесу відновлення репродуктивного циклу дійних корів на рівень їх молочної продуктивності, особливо в перші місяці лактації, і на якісні показники молочної сировини, а саме вміст білка та жиру. Метою дослідження було вивчення молочної продуктивності та якості молока у дійних корів після введення біоактивного препарату «Глютам 1М» протягом останньої декади тільності. Молочну продуктивність та якісні показники молока корів визначали за результатами контрольних доїнь та за фактичними надоями в журналах обліку. Вираховували молочну продуктивність корів за один, два, три перші місяці лактації після отелення, надій за 305 днів, за лактацію. В умовах лабораторії кафедри технологій виробництва, переробки та якості продукції тваринництва Поліського національного університету за стандартними методами досліджували в молоці вміст жиру (кислотний метод) та білку (рефрактометричним методом). Введення коровам біологічно активного препарату «Глютам 1М», починаючи з 270 доби тільності індекс осіменіння був вірогідно (р<0,01) нижчим на 35 % (0,67), на 7,9 діб раніше проявлялись ознаки першої статевої охоти та сервіс-період був вірогідно коротшим на 20,23 діб, порівняно з контролем. Введення препарату «Глюмат 1М» не сплинуло на якісні показники молока, а саме масової частки жиру та білку, коливання вищенаведених показників відбувалося в межах похибки. З підвищенням показників відтворювальної здатності у корів дослідних груп не зафіксовано зниження молочної продуктивності та погіршення якості молочної сировини.
Посилання
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26. Seba M.V., Khomenko M.O., Novytskyi V.P., Bublyk A.V., Yahafarov M.I. (2019) Zastosuvannia biolohichno aktyvnoho preparatu Kvatronan-Se v tranzytnyi period koriv [Use of the biologically active drug Quatronan-Se in the transit period of cows]. Animal husbandry and food technology, vol. 10, no. 1, pp. 34–39. (in Ukrainian)
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Опубліковано
2023-10-31
Як цитувати
Трохименко, В. З., Ковальчук, Т. І., Захарін, В. В., Безверха, Л. М., & Мамченко, В. Ю. (2023). ВІДТВОРЮВАЛЬНА ЗДАТНІСТЬ, ПРОДУКТИВНІСТЬ ТА ЯКІСТЬ МОЛОКА КОРІВ ПІСЛЯ ЗАСТОСУВАННЯ БІОЛОГІЧНО АКТИВНОГО ПРЕПАРАТУ. Вісник Сумського національного аграрного університету. Серія: Тваринництво, (3), 71-77. https://doi.org/10.32782/bsnau.lvst.2023.3.10
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