膳食中的葵花籽油对奶牛血液中矿物质含量的影响

Q3 Veterinary
E. Šaljić, A. Hrković-Porobija, S. Šerić-Haračić, F. Tandir, Maja Varatanović, A. Ćutuk, B. Čengić
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引用次数: 0

摘要

矿物质是牲畜体内的必需物质,具有重要功能,其失衡会对牲畜的健康和生产造成负面影响,尤其是反刍动物。在奶牛日粮中添加脂肪会影响整体和矿物质代谢,从而影响健康和生产。这项研究的目的是探讨在添加或不添加植物油的不同日粮成分下,泌乳奶牛的平衡生产膳食与矿物质状况之间的相关关系。研究对象是波斯尼亚和黑塞哥维那萨拉热窝布特米尔农场的 30 头荷斯坦奶牛。根据生产率将 10 头奶牛分成三组(A 组,每天产奶 13-15 公斤;B 组,每天产奶 19-21 公斤;C 组,每天产奶 25-27 公斤)。每隔 3 周收集三次动物饲料、血浆和牛奶样本。根据饲料分析结果,对各组的日粮进行了标准化,在不添加葵花籽油的情况下饲喂三周,然后添加日粮干物质 2.5% 的葵花籽油饲喂三周。在确定了日粮中基本营养成分、干物质和灰分的含量后,用原子吸收分光光度法测定了 Ca、Mg、Na 和 K 的浓度,并根据 Woy 和 Eggertz-Finkener 的方法用比色法分析了 P 的含量。血液矿物质参数分析采用分光光度法。牛奶样本中的脂肪、蛋白质、乳糖和非脂干物质的含量是通过红外光谱自动分析仪测定的。根据结果,我们观察到各研究组之间和各采样间隔之间血浆中钙、磷和镁的数值变化相似,差异具有统计学意义。在膳食中添加葵花籽油后,牛奶产量与镁和钙的浓度呈正相关,而在任何采样中,钙和磷都没有相关系数。添加葵花籽油和不添加葵花籽油的平衡膳食对受试动物血浆中钙、磷或镁的含量没有显著影响,组间也没有发现明显差异。然而,通过测定牛奶参数与血液生化参数之间的相关性,发现添加油脂的日粮中牛奶量与钙、镁含量之间存在明显的正相关。鉴于在奶牛平衡日粮中添加干物质 2.5% 的葵花籽油对矿物质概况和受测动物的参数没有负面影响,我们得出结论,作为人类日常饮食中的一种动物食品,添加这种油从经济角度和改善牛奶的营养成分角度来看都是有益的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The influence of sunflower oil in meals on the blood mineral profile of dairy cows
Minerals are essential substances with an important function in livestock, and their disbalance negatively affects the health and production, especially of ruminants. The addition of fat to the rations of dairy cows impacts the overall and mineral metabolism, and thus on health and production. The aim of the research was to examine the correlative relationships between balanced production meals and the mineral status of lactating cows with different ration compositions with or without the presence of vegetable oil. The research was conducted on 30 dairy cows of the Holstein breed at the Butmir farm, Sarajevo, Bosnia and Herzegovina. Three groups of 10 animals were formed based on productivity (A, 13-15 kg of milk/day, B, 19-21 kg of milk/day and C, 25-27 kg of milk/day). Samples of feed, blood plasma and milk of animals were collected on three occasions a 3-week intervals. According to the feed analysis results, the rations were standardized for each group, given for three weeks without oil,and then for three weeks with the addition of sunflower oil in the amount of 2.5% of the ration dry matter. After determining the content of basic nutrients, dry matter and ash in the rations, the concentrations of Ca, Mg, Na and K were determined by atomic absorption spectrophotometry,while the colorimetric method was used to analyse P according to Woy and Eggertz-Finkener. Analysis of blood mineral parameters was performed spectrophotometrically. The content of fat, proteins, lactose, and non-fat dry matter in milk samples was determined by infrared spectrometry using an automatic analyser. Based on the results, we observed a similarity in changes of values and the statistical significance of the differences in plasma Ca, P and Mg between the study groups and at sampling intervals. Milk production was positively correlated with the concentration of Mg and Ca with addition of the sunflower oil to the meal, while no correlation coefficient was established for P in any of the samplings. Balanced meals with and without the addition of oil did not significantly affect the content of Ca, P or Mg in the blood plasma of the tested animals, nor were significant differences found between the groups. However, by determining the correlations between milk parameters and blood biochemical parameters, a significant positive correlation was established between the amount of milk and Ca and Mg levels with a diet supplemented by oil. Given that the addition of sunflower oil in the amount of 2.5% of dry matter of the balanced rations for cows had no negative effects on the mineral profile and the parameters of the tested animals, we conclude that the introduction of this oil could be useful both from the economic point and improving nutritional composition of milk as an animal food present in the daily human diet.
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来源期刊
Veterinarska stanica
Veterinarska stanica Veterinary-Veterinary (all)
CiteScore
1.10
自引率
0.00%
发文量
57
期刊介绍: The goal of the journal is to provide an international platform for the publication of articles in the fields of veterinary and animal sciences, and biotechnology. The content of the journal is particularly dedicated to veterinary practitioners, but also to veterinary scientists and university professors, to encourage them to share their knowledge and experience on this platform. Manuscripts submitted to the journal may include: original scientific papers, review articles, short communications, professional articles, case reports, conference reports and literary records and reviews of new book either in Croatian or English languages.
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