提高兔子的营养消化率和健康水平：发酵菜籽粕对血液血液学和脂质参数的影响。
Improving nutrient digestibility and health in rabbits: effect of fermented rapeseed meal supplementation on haematological and lipid parameters of blood.
机构信息
Department of Biochemistry and Toxicology, University of Life Sciences in Lublin, Akademicka 13, Lublin, 20-950, Poland.
National Research Institute of Animal Production, Krakowska 1, , Balice n. Kraków, 32-083, Poland.
出版信息
BMC Vet Res. 2024 Oct 7;20(1):450. doi: 10.1186/s12917-024-04293-4.
BACKGROUND
Many studies conducted on livestock point to fermented rapeseed meal (FRSM) as a component that provides adequate quality and quantity of protein. Additionally, it is a very good source of probiotics, prebiotics, enzymes, and antioxidants. A study was undertaken to assess the impact of a feed supplemented with FRSM fermented with Bacillus subtilis strain 87Y on production parameters, nutrient digestibility, and haematological and lipid indicators of the blood in growing rabbits. Forty New Zealand White rabbits (body weight 816,25 ± 24,98 g) aged 35 days were used in this study. The animals were divided into four groups, a control group (C) was fed a standard diet, while in the diet of three experimental groups, soybean meal (SBM) was replaced with FRSM at 4% (FR4 group), 8% (FR8 group), or 12% (FR12 group).
RESULTS
Detailed analysis revealed that the contribution of FRSM in the rabbit feed, regardless of the amount, had a significant effect on body weight gain (BWG), as well as average daily gain (ADG), compared to the control group (C), (P = 0.017). All groups receiving FRSM had a significantly lower (P = 0.05) feed conversion ratio (FCR) compared to the control group. In rabbits fed a diet containing 8% FRSM, the blood haematological parameters, such as red blood cells (RBC), haematocrit (HCT), haemoglobin (HGB), and mean corpuscular volume (MCV), were significantly higher compared to the control group (P = 0.037). In addition, a significant reduction in the plasma levels of the low-density lipoprotein fraction (LDL-chol), the ratio of total cholesterol to high-density lipoprotein (CHOL/HDL), (P = 0.001), and triacylglycerols (TG), (P = 0.004) were observed in the experimental groups compared to the control group.
CONCLUSIONS
Based on the encouraging outcomes, it is possible to recommend domestically produced FRSM as a viable substitute for genetically-modified (GM) SBM in rabbit feed.
背景
许多针对家畜的研究表明，发酵菜籽粕（FRSM）是一种提供充足质量和数量蛋白质的成分。此外，它还是益生菌、益生元、酶和抗氧化剂的极好来源。本研究旨在评估用枯草芽孢杆菌 87Y 发酵的 FRSM 作为饲料补充剂对生长兔的生产参数、养分消化率以及血液的血液学和脂质指标的影响。本研究使用了 40 只新西兰白兔（体重 816.25 ± 24.98 g），这些兔子的年龄为 35 天。这些动物被分为四组，对照组（C）喂食标准饮食，而在三个实验组的饮食中，用 FRSM 分别替代 4%（FR4 组）、8%（FR8 组）或 12%（FR12 组）的豆粕（SBM）。
结果
详细分析表明，无论 FRSM 在兔饲料中的添加量如何，与对照组（C）相比，对体重增加（BWG）和平均日增重（ADG）都有显著影响（P=0.017）。与对照组相比，所有添加 FRSM 的组的饲料转化率（FCR）均显著降低（P=0.05）。在喂食含有 8% FRSM 的饮食的兔子中，血液血液学参数，如红细胞（RBC）、血细胞比容（HCT）、血红蛋白（HGB）和平均红细胞体积（MCV），与对照组相比显著升高（P=0.037）。此外，与对照组相比，实验组的血浆中低密度脂蛋白（LDL-chol）、总胆固醇与高密度脂蛋白（CHOL/HDL）的比值（P=0.001）和三酰基甘油（TG）（P=0.004）的水平显著降低。
结论
基于令人鼓舞的结果，我们可以推荐国产 FRSM 作为兔饲料中基因改造（GM）豆粕的可行替代品。
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