H2020Индивидуална стипендия2015–2017

MarkEfficiency · Digestive and nutritional indicators of feed efficiency in cattle fed forage-based diets

„Хоризонт 2020“ — Действия „Мария Склодовска-Кюри“

Период: 2015-09-01 → 2017-08-31
Финансиране от ЕС: 173 076 €
Участници: 1
Схема: MSCA-IF-EF-ST

Линиите свързват координатора с партньорите.

Накратко на български

Биомаркери за хранителна ефективност при говеда, хранени с фуражи, помагат да се разберат физиологичните причини за по-добрата усвояемост на храната. Това е важно за по-устойчиво животновъдство, намаляване на емисиите на метан и по-ефективно производство на месо и мляко.

Този кратък обзор е генериран от изкуствен интелект

Кратко обяснение, генерирано от езиков модел по текста на CORDIS. Оригиналът е по-долу.

Резултати накратко

Digestive and nutritional indicators of feed efficiency in cattle fed forage-based diets

Within the context of rarefaction of natural resources, climate change and global human population growth, achieving food security in a sustainable way is a present-day challenge facing mankind. The global demand of meat, dairy and eggs is increasing by more than two percent per annum, fuelled by the growing population, but also by changes in diet due to increased economic affluence, particularly in developing countries. Livestock animals are also a major source of greenhouse gas emissions and effluents. To comply with the current socio-economic context, it is essential for sustainable livestock production to target the efficient use of feeds not suitable for human consumption. Ruminants are particularly suitable as a result of their symbiotic rumen microbes, they can convert forages and low quality nitrogen sources into high protein and essential micronutrients present in meat and milk. Evaluation of the feed efficiency of ruminants fed non-competitive feed resources is a current focus of research to increase the profitability and sustainability of European ruminant farming systems. Feed efficiency is a complex trait and phenotyping this trait is lengthy and costly. In addition, newer sustainability parameters, such as methane emissions and nitrogen losses have to be incorporated for a more comprehensive evaluation of the “sustainable” phenotype. The general objective of this action is to explore potential biomarkers of feed efficiency in cattle fed forage-based diets that could be used to improve our understanding of the physiological basis of efficient animals and that could also be used as an early evaluation tool in young animals and/or on large numbers of animals in commercial settings for assessment of nutritional management problems and for selection purposes.

Текст от CORDIS, на английски · Данни: CORDIS, © Европейски съюз

Цел на проекта

As the human population approaches 9.5 billion in 2050, and societies as a whole become more affluent, the demand for meat and milk is projected to nearly double. The current challenge facing humanity is to achieve food security in a sustainable manner. As such, sustainable livestock production must be targeted towards the efficient use of feeds not suitable for human consumption. As a result of their symbiotic rumen microbial population, ruminants are strong targets for manipulation as they can convert fibrous forages and low quality nitrogen sources into high protein meat and milk. Evaluation of the feed efficiency of ruminants fed non-competitive feed resources is an important avenue to increase the profitability and sustainability of European ruminant farming systems. Feed efficiency is a complex trait that is lengthy and costly to phenotype. Additionally, in order to provide a comprehensive evaluation of the “sustainable” phenotype, newer sustainability parameters, such as methane emissions and nitrogen losses need to be incorporated. Metabolism and digestion have been described as the two most important physiological drivers of variation of feed efficiency in ruminants. Thus, the objective of this proposal is to explore potential biomarkers and microbial indicators of feed efficiency in growing cattle fed forage-based diets to improve our understanding of the physiological basis of efficient animals. Using feed conversion efficiency and residual feed intake as benchmark indexes of efficiency, we will test and improve the use of modern isotopic N fractionation and rumen microbial phylotyping techniques as practical tools to evaluate feed efficiency in ruminants and to better understand and correlate the rumen microbial community signature to an efficiency phenotype. These biomarkers could be used as an early evaluation tool in young animals and in commercial settings for selection and assessment of nutritional management problems.

Оригинален текст от CORDIS (на английски).

Участници

INSTITUT NATIONAL DE RECHERCHE POUR L'AGRICULTURE, L'ALIMENTATION ET L'ENVIRONNEMENT · ParisКоординаторФранция