在饲料中添加亚麻籽油或大豆油的奶牛和水牛的乳脂质量

Q3 Agricultural and Biological Sciences
A. Shazly, L. K. Hassan, A. Kholif, A. F. Sayed, Mahmoud Abd El-Aziz
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引用次数: 0

摘要

本试验旨在评价在饲料中添加亚麻籽油(FO)、大豆油(SO)或其混合物(FSO)的奶牛和水牛的无水乳脂(AMF)品质。按4 × 4拉丁方设计,饲喂对照饲粮或添加2%鱼油、2%鱼油和2%鱼油三种添加物中的一种。添加鱼油、大豆油和FSO降低了奶牛和水牛牛奶中饱和脂肪酸含量(主要为c4∶0、c14∶0和c16∶0),增加了不饱和脂肪酸含量(c18∶1和c18∶2)。当饲粮中添加鱼油、大豆油或鱼油时,牛的AMF中胆固醇含量下降,而水牛的AMF中胆固醇含量增加。与对照饲粮(11.02 mg 100 g-1)和15.68 mg 100 g-1相比,添加粗豆油和粗豆油分别提高了奶牛(25.06和17.89 mg 100 g-1)和水牛(28.48和30.32 mg 100 g-1) AMF中维生素E的含量,并与DPPH•自由基清除能力(r2 = 0.66)和ABTS•自由基清除能力(r2 = 0.67)呈正相关。奶牛AMF的固体脂肪含量(SFC)较高,在5°C时为58.12 ~ 60.37%,而水牛AMF的固体脂肪含量为52.37 ~ 56.98%,但在>15°C时较低。最后,在日粮中添加植物油,特别是大豆油,可以提高AMF的质量;增加了USFA/SFA比率、维生素E含量和抗氧化活性
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Quality of milk fat obtained from cows and buffaloes fed a diet supplemented with flaxseed or soybean oils
The experiment was carried out to evaluate the quality of anhydrous milk fat (AMF) of cows and buffaloes supplemented with flaxseed oil (FO), soybean oil (SO), or their mixture (FSO). Lactating crossbred cows and buffaloes were fed with control diet or with one of three supplements: 2% FO, 2% SO, and 2% FSO according to a double 4 x 4 Latin Square Design. The diets with FO, SO, or FSO reduced saturated FA, mainly C4:0, C14:0 and C16:0, while increased the unsaturated FA C18:1 and C18:2 in milk from cows and buffaloes. Cholesterol content decreased in cow's AMF while increased in buffalo's AMF when a diet supplemented with FO, SO, or FSO. The diet with SO or FSO increased the content of vitamin E in AMF obtained from cows (25.06 and 17.89 mg 100 g-1) and buffaloes (28.48 and 30.32 mg 100 g-1) compared with the control diet (11.02 and 15.68 mg 100 g-1), respectively, which correlated positively with scavenging activity for DPPH• (r2 = 0.66) and ABTS• (r2 = 0.67) radicals. Solid fat content (SFC) was high for cow’s AMF, with 58.12-60.37% at 5°C compared to that of buffalo's AMF, with 52.37-56.98%, but was low for cow's AMF at >15°C. Finally, supplementing a diet with vegetable oils, particularly SO, improves the quality of AMF; increases USFA/SFA ratio, vitamin E content, and antioxidant activities
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来源期刊
Acta Scientiarum. Animal Sciences
Acta Scientiarum. Animal Sciences Agricultural and Biological Sciences-Food Science
CiteScore
1.60
自引率
0.00%
发文量
45
审稿时长
9 weeks
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