Moreno-Indias Isabel, Hernández-Castellano Lorenzo E, Sánchez-Macías Davinia, Morales-delaNuez Antonio, Torres Alexandr, Argüello Anastasio, Castro Noemí
Animal Production and Biotechnology group, Institute of Animal Health and Food Safety, Universidad de Las Palmas de Gran Canaria, 35413 Arucas, Spain.
Unidad de Gestión Clínica de Endocrinología y Nutrición, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria, Universidad de Málaga, 29071 Málaga, Spain.
Animals (Basel). 2020 Jul 20;10(7):1233. doi: 10.3390/ani10071233.
Consumption of polyunsaturated fatty acids (PUFA), especially docosahexaenoic acid (DHA), has beneficial effects for consumers' health. Consequently, there is an increased interest in enhancing meat fatty acid profiles (i.e., PUFA and DHA content) through diverse nutritional strategies. This study aimed to investigate the effect of supplementing a microalgae-derived product rich in DHA on growth and immune system development in newborn goat kids. In this experiment, newborn goat kids were fed milk replacer (MR) supplemented with three levels of a microalgae-derived product rich in DHA (DHA-Gold, Martek Biosciences, MD, USA). Groups were designed as follows: MR-NS (milk replacer without DHA-Gold supplementation; = 10), MR-DHA-9 (9 g of DHA-Gold/L milk replacer; 10) and MR-DHA-18 (18 g of DHA-Gold/L milk replacer; 10). The immune status of the kids was evaluated by the plasma IgG and IgM concentrations, as well as by the complement system and chitotriosidase activities. Dietary supplementation with DHA did not affect either growth or innate and humoral immunity ( > 0.05). This study concludes that supplementation with DHA does not cause negative effects on growth and immune status in newborn goat kids.
食用多不饱和脂肪酸（PUFA），尤其是二十二碳六烯酸（DHA），对消费者健康有益。因此，人们越来越有兴趣通过各种营养策略来改善肉类的脂肪酸组成（即PUFA和DHA含量）。本研究旨在调查补充富含DHA的微藻衍生产品对新生山羊羔生长和免疫系统发育的影响。在本实验中，给新生山羊羔喂食添加了三种不同水平富含DHA的微藻衍生产品（DHA-Gold，美国马里兰州Martek Biosciences公司）的代乳品（MR）。分组如下：MR-NS（不添加DHA-Gold的代乳品；n = 10）、MR-DHA-9（每升代乳品添加9克DHA-Gold；n = 10）和MR-DHA-18（每升代乳品添加18克DHA-Gold；n = 10）。通过血浆IgG和IgM浓度以及补体系统和几丁质酶活性来评估羔羊的免疫状态。补充DHA对生长以及先天性和体液免疫均无影响（P>0.05）。本研究得出结论，补充DHA对新生山羊羔的生长和免疫状态不会产生负面影响。
