饲用西兰花和花椰菜对奶羊采食量、代谢健康状况及产奶量和乳成分的影响

IF 4 2区农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE

Animal Pub Date : 2025-04-28 DOI:10.1016/j.animal.2025.101530

A. Martín , F.J. Giráldez , I. Mateos , C. Saro , J. Mateo , S. Andrés , I. Caro , M.J. Ranilla

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引用次数: 0

摘要

西兰花和花椰菜的生产会产生大量的蔬菜副产品，这些副产品通常会积聚在环境中；然而，这些残留物对反刍动物有营养价值。本研究评价了在饲粮中添加工业花椰菜和花椰菜废弃物对奶羊采食量、代谢健康以及产奶量和奶成分的影响。选取泌乳中期的Assaf奶羊30只，随机分为3组，每组10只。对照组（CON）按总混合比例（TMR）任意饲喂，西兰花组（BRO）按相同的TMR加新鲜西兰花碎1.5 kg FM/d，菜花组（CAU）按TMR加新鲜菜花碎1.5 kg/d饲喂。试验期42 d，分为适应期21 d和测量期21 d，每天记录采食量和产奶量。每周采集一次牛奶样本。试验结束时，利用各饲喂组的乳汁制备新鲜奶酪。进行了感官分析，以检测处理之间风味的最终差异。采集血样分析生化特征和酸碱状态。BRO组和CAU组的动物在不降低TMR日摄入量和不影响产奶量的情况下，吃光了所有提供的植物。除尿素浓度（CON、BRO和CAU分别为55.2、61.8、57.2 mg/dL）外，各组间生化特征和血酸碱状态均无显著差异；p = 0.022)。乳成分差异最大的是蛋白质含量，BRO组高于CON组和CAU组（P = 0.006）；脂肪酸分布差异最大的是饱和脂肪酸含量升高（P = 0.012），单不饱和脂肪酸含量降低（P = 0.005）。综上所述，泌乳绵羊饲粮中添加1.5 kg西兰花或花椰菜不影响采食量、产奶量和动物健康状况，对奶质影响较小。

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Feeding broccoli and cauliflower to dairy sheep: influence on feed intake, metabolic health status and milk production and composition

The production of broccoli and cauliflower generates large amounts of vegetable by-products that often accumulate in the environment; however, these residues have nutritional value for ruminants. This study evaluated the effects of including industrial broccoli and cauliflower waste in the diet of dairy ewes on feed intake, metabolic health and milk production and composition. Thirty Assaf dairy ewes in mid-lactation were divided into three groups, with 10 animals per group. The control group (CON) received a total mixed ratio (TMR) ad libitum, the broccoli group (BRO) received the same TMR plus 1.5 kg FM/d of fresh chopped broccoli, and the cauliflower (CAU) group received the TMR plus 1.5 kg/d of fresh chopped cauliflower. The trial lasted 42 d, divided into 21 d for adaptation and 21 d of measurements, where feed intake and milk yield were recorded daily. Milk samples were taken once a week. At the end of the experiment, fresh cheese was prepared, using the milk from each feeding group. A sensory analysis was carried out, to detect eventual differences in flavour among treatments. Blood samples were taken to analyse the biochemical profile and acid-base status. The animals of the BRO and the CAU groups ate all the vegetal offered without decreasing the daily intake of TMR or affecting milk production. No differences were observed between groups in the biochemical profile or the blood acid-base status, with the exception of the urea concentration, which was higher in the BRO group compared to the control (55.2, 61.8, 57.2 mg/dL for CON, BRO and CAU; P = 0.022). Regarding milk composition, the most relevant differences were observed in protein content, being higher in the BRO group (P = 0.006) than in the CON and CAU groups, and in the fatty acids profile, which showed an increase in the saturated fatty acid content (P = 0.012) and a decrease in the monounsaturated fatty acid content (P = 0.005) in the groups supplemented with broccoli and cauliflower. In conclusion, supplementation with 1.5 kg of broccoli or cauliflower in lactating sheep did not affect feed intake, milk production or health status of the animals and had little impact on the quality of milk.

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来源期刊

Animal 农林科学-奶制品与动物科学

CiteScore

7.50

自引率

2.80%

发文量

246

审稿时长

3 months

期刊介绍： Editorial board animal attracts the best research in animal biology and animal systems from across the spectrum of the agricultural, biomedical, and environmental sciences. It is the central element in an exciting collaboration between the British Society of Animal Science (BSAS), Institut National de la Recherche Agronomique (INRA) and the European Federation of Animal Science (EAAP) and represents a merging of three scientific journals: Animal Science; Animal Research; Reproduction, Nutrition, Development. animal publishes original cutting-edge research, ''hot'' topics and horizon-scanning reviews on animal-related aspects of the life sciences at the molecular, cellular, organ, whole animal and production system levels. The main subject areas include: breeding and genetics; nutrition; physiology and functional biology of systems; behaviour, health and welfare; farming systems, environmental impact and climate change; product quality, human health and well-being. Animal models and papers dealing with the integration of research between these topics and their impact on the environment and people are particularly welcome.