Genomic and spectroscopic nitrogen-efficiency decision support
The N_efficiency project develops sustainable genetic and nutritional strategies to improve nitrogen use efficiency in dairy cows. By combining genomic predictions, low-cost infrared milk spectroscopy, and a farmer-focused decision-support tool, the platform helps reduce environmental nitrogen losses while preserving dairy productivity and improving economic viability.
Overview
The N_efficiency project is a multidisciplinary research and development initiative aimed at transforming dairy farm sustainability by optimizing nitrogen utilization. By integrating advanced genomic research, spectroscopic analysis, and data-driven modeling, the project provides comprehensive strategies to reduce environmental nitrogen losses while maintaining dairy productivity. This solution is designed to support the dairy sector in lowering its environmental footprint through improved breeding programs and precision feeding management.
Technical specifications
The project delivers an integrated suite of tools and methodologies including:
- Reference Database: A comprehensive dataset on nitrogen use efficiency and nitrogen loss metrics in dairy cows.
- Spectroscopic Recording: Low-cost, large-scale phenotyping methods utilizing infrared (IR) spectroscopy of milk to estimate individual cow nitrogen efficiency.
- Genomic Prediction: Development of genomic breeding values for nitrogen traits to enable genetic selection for more efficient animals.
- Genetic Analysis: Genome-wide association studies to identify genes and metabolic pathways influencing nitrogen efficiency and losses.
- Decision-Support Tool: A ration-optimization system that integrates these data to assist farmers in planning, evaluating, and managing feeding rations for optimal nitrogen use.
Technology readiness level
4 The project is currently in the development phase, with activities focused on data collection, methodology development, and model optimization. The work is supported by national research funding, and the research team is actively collaborating with industry partners to validate these technologies for practical, large-scale application in the dairy sector.
About Norwegian University of Life Sciences
NMBU is a comprehensive public research university with about 8,400 students and 1,900 employees, combining broad academic scope with an applied, sustainability-oriented character. Its Ås campus, roughly 40 km south of Oslo, is part of Norway’s leading biosciences cluster and is co-located with NIBIO, Nofima, and the Norwegian Veterinary Institute. Laboratories, experimental facilities, and a modern veterinary building give companies and public-sector partners practical access to research and expertise. Research is supported by the Research Council of Norway, the European Union, and other competitive external sources. Ard Innovation, NMBU’s technology transfer office, supports intellectual property, licensing, commercialization, and startup formation.
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