ArticleAnimal bioscience2025
Effects of supplementing rumen-protected rubber seed oil to dairy cattle on feed digestibility and milk production.
Article in Animal bioscience, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- The impact of tomato pomace silage on feed utilization, health status, milk yield, and composition in dairy cows.Animal bioscience · 2026Article
- Effects of complex enzyme preparation supplementation in a low-protein amino acid-balanced diet on production performance, serum biochemistry, nitrogen metabolism and nitrogen balance of mid-lactation dairy cows.Animal bioscience · 2026Article
- Influence of Different Levels of a Rubber Seed Kernel Pellet Supplement on Feed Efficiency, Blood Chemistry, and Growth Performance in Beef Cattle.Veterinary medicine international · 2026Article
- Innovative lipid delivery systems in ruminant diets: the role of spray drying.Frontiers in veterinary science · 2025Review
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Authors and funding
7 authors.
Funding
Abstract
objectiveThe aim of this study was to determine the effect of rumen-protected rubber seed oil (RPRSO) supplementation on feed digestibility, milk yield, and milk composition in tropical dairy cows.
methodsTwelve crossbred Holstien-Friesian dairy cows (75% Holstein-Friesian, 25% Thai native breed) with a mean body weight of 460±30 kg and 20±5 days in milk were randomly assigned to 1 of 3 treatments according to a completely randomized design. The treatments were as follows: a basal diet without rumen-protected fat (RPF) (control) or supplementation of rumen-protected palm oil (RPPO) at 300 g/h/d and RPRSO at 300 g/h/d. Each cow was fed a total mixed ration ad libitum.
resultsThe nutrient intake was similar among treatments (p>0.05). Adding RPF did not affect nutrient digestibility, while organic matter (OM) digestibility increased in dairy cows receiving RPRSO (p<0.01). Blood urea nitrogen (BUN), total protein, or glucose did not alter among treatments (p>0.05), while triglycerides and cholesterol were increased when cows were fed RPPO (p<0.01). Adding RPF increases milk yield in cows (p<0.01). The supplementation of RPRSO increased milk fat (p = 0.04). Milk fat yield was higher in RPPO and highest in RPRSO (p<0.01). The addition of RPF increased the oleic acid (OA, C18:1 cis-9) in milk (p = 0.01). In addition, cows fed RPRSO increased linoleic acid (LA; C18:2ω6 cis-9,12+trans-9,12) and α-linolenic acid (ALA; C18-3ω3 cis-9,12,15) in milk (p<0.01). The addition of RPF increased milk unsaturated fatty acids and monounsaturated fatty acids (p≤0.04). The polyunsaturated fatty acid (PUFA) in milk increased with RPRSO supplementation (p<0.01).
conclusionSupplementation of RPRSO during early lactation can increase feed digestibility and the concentration of milk fat with PUFA (LA and ALA) in tropical dairy cows.
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