Narrow your search

Library

ULiège (5)

FARO (1)

KU Leuven (1)

LUCA School of Arts (1)

Odisee (1)

Thomas More Kempen (1)

Thomas More Mechelen (1)

UCLL (1)

VIVES (1)

Vlaams Parlement (1)


Resource type

dissertation (4)

book (2)


Language

English (3)

French (3)


Year
From To Submit

2020 (2)

2018 (1)

2006 (1)

1995 (1)

1993 (1)

Listing 1 - 6 of 6
Sort by

Dissertation
Application d'index de sélection aux tests de descendances maternelles de Pinus kesiya à Madagascar.
Author:
Year: 1993

Loading...
Export citation

Choose an application

Bookmark

Abstract


Dissertation
Contribution à la révision de l'index synthétique global de sélection pour les bovins laitiers de race Holstein en Wallonie
Authors: --- --- --- --- --- et al.
Year: 2018 Publisher: Liège Université de Liège (ULiège)

Loading...
Export citation

Choose an application

Bookmark

Abstract

La production laitière évolue régulièrement suite à des influences socio-économiques, politiques, environnementales, … Les éleveurs doivent dès lors revoir leurs objectifs de sélection génétique des vaches laitières. Les outils permettant de répondre à ces objectifs (comme l’index global de sélection) doivent donc eux aussi évoluer. C’est dans l’optique de la révision de l’index économique global wallon (V€G) que s’inscrit le présent travail visant à réaliser un état des lieux de cet index, de son utilisation par les éleveurs wallons et des considérations de son évolution future. A cela s’ajoute un état des lieux de l’importance des caractères intervenant dans le choix des animaux reproducteurs.
Une enquête a été envoyée aux éleveurs wallons et une autre aux professionnels de l’awé. Elles ont permis de collecter des données nécessaires à la réalisation de cet état des lieux. De plus, des analyses de l’évolution des index économiques et des valeurs d’élevage de taureaux ainsi que des trends génétiques femelles ont permis d’apprécier la progression du potentiel génétique des animaux Holstein en Wallonie. Enfin, une analyse de sensibilité du V€G actuel a permis de dégager des enseignements concernant l’évolution future du V€G.
Les analyses ont permis de conclure que le V€G n’est pas utilisé correctement par la majorité des éleveurs dans la sélection des animaux reproducteurs; la nature même du V€G permettant un classement économique, objectif, global n’étant pas comprise. De plus, parmi les caractères les plus importants pour les éleveurs et les professionnels figurent les caractères de production mais aussi la santé des pattes pour laquelle il n’y a actuellement pas de valeurs d’élevage publiée en Wallonie. Enfin, au niveau du calcul du V€G, des ajustements justifiables sont proposés par les éleveurs, surtout dans les pondérations des caractères de production (sélection équilibrée des rendements en matière grasse et en protéines notamment) et de fonctionnalité (en particulier l’équilibre longévité, santé du pis et fertilité femelle). Dairy production is continuously evolving because of socio-economic, political and environmental influences. Therefore breeders have to adapt their breeding objectives for dairy cows. So tools like selection indices that are used to reach these objectives, have to evolve as well. The aim of the present work is to carry out an inventory of the V€G, of its use by the Walloon breeders, and of its future evolution. Next to this, an inquiry into the significance of individual traits taken into consideration when choosing breeding animals was conducted.
A survey was sent to Walloon breeders and another one to the professionals from the awé. The objective of these surveys was to collect the data necessary to accomplish this inventory. Additionally, analyses of the evolution of the economic index and of the breeding values as well as an analysis of female genetic trends were performed in order to appreciate the progress of the genetic potential in the Walloon Holstein population. Lastly, a sensitivity analysis of the current V€G provided an insight into the future evolution of the V€G.
The analyses revealed that the majority of breeders do not use the V€G correctly when selecting breeding animals, probably because of a misunderstanding of the nature of the V€G that maximizes a global economic response. Another conclusion is that, next to the production traits, the health of the legs, for which there are currently no breeding values published in Wallonia, is also among the most important traits for breeders and professionals. Finally, concerning the current weightings of the V€G, justifiable adjustments were suggested by some farmers, mainly for production traits (balanced selection of fat and protein in particular) and of functional traits (in particular the balance between longevity, udder health and female fertility).


Dissertation
Contribution au développement d'un index de sélection synthétique pour le rameau mixte de la race Blanc-Bleu Belge.

Loading...
Export citation

Choose an application

Bookmark

Abstract


Dissertation
Use of mixed models to appreciate the persistency of yields during the lactation of milk cows.
Author:
Year: 1995


Book
Wild Crop Relatives and Associated Biocultural and Traditional Agronomic Practices for Food and Nutritional Security
Authors: --- --- --- ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

The growing world population exerts tremendous pressure on our finite food resources. Since the lion‘s share of the global calorie intake is reliant upon a handful of plant species like rice, wheat, maize, soybean, and potato, it is the need of the hour to expand our dietary reliance to nutritionally rich but neglected, underutilized, and yet-to-be-used wild plants. Such wild plants also have ethnomedicinal and biocultural significance. Owing to their ecosystem plasticity, they can be easily cultivated in diverse soil systems, including marginal, degraded, and other disturbed areas. Due to these resilient attributes, they can be considered for large-scale cultivation. However, proper biotechnological interventions are important for removing the negative traits as well as for standardizing the mass multiplication and cultivation strategies of such species for various agro-climatic regions. This Special Issue, “Wild Crop Relatives and Associated Biocultural and Traditional Agronomic Practices for Food and Nutritional Security”, was dedicated to showcasing the potential wild crop varieties of nutritional significance and associated biocultural knowledge from the diverse agroecological regions of the world and also to formulating suitable policy frameworks for food and nutritional security. The novel recommendations provided by this Special Issue can serve as a stepping-stone for utilizing wild and neglected crops as supplemental foods.

Keywords

Research & information: general --- Biology, life sciences --- Technology, engineering, agriculture --- non-domesticated legumes --- Vigna racemosa --- Vigna ambacensis --- Vigna reticulata --- Vigna vexillata --- Tanzania --- wild food legumes --- seed priming --- seaweed extract --- biostimulant --- germination energy --- seedling vigour --- consumer-oriented breeding --- consumer-oriented germplasm conservation --- culinary --- farmer–breeder–chef–consumer nexus --- genetic diversity --- heritage seedbank --- local food systems --- seed-savers --- stress tolerance --- anthropocene --- climate resilient --- food and nutritional security --- resource conservation --- underutilized crops --- Sustainable Development Goals --- biomass --- biochar --- soil --- BPLFA --- FPLFA --- DHA --- ammonia-oxidizing bacteria --- electrophoresis --- genetic resources --- neglected hexaploid wheat --- seed-storage proteins --- Crassocephalum crepidioides --- ethnobotany --- generations --- knowledge dynamics --- Launaea taraxacifolia --- use value --- Vernonia amygdalina --- ascorbic acid --- Diplotaxis erucoides --- field --- greenhouse --- new crops --- nitrates --- sinigrin --- traditional crop varieties --- Jerusalem artichoke --- inulin --- fertilization --- polyphenols --- antioxidant capacity --- climate change scenarios --- climate suitability --- fruit selection index --- Maxent --- species distribution modeling --- pre-breeding --- morphotypes --- domestication index --- indigenous knowledge --- sociolinguistic groups --- client-preferred traits --- seed dormancy --- seed germination --- molecular biology --- genetics --- traditional leafy vegetables --- Gynandropsis gynandra --- undomesticated legumes --- legumes --- Vigna species --- domestication --- unexplored legumes --- induced mutation --- lodging resistance --- photosynthetic efficiency --- transcriptomics --- orphan crops --- neglected and underutilized species --- wild edibles --- biodiversity --- food composition --- nutrition --- policy --- breeding --- Macrotyloma geocarpum --- farmers’ preferences --- cropping systems --- constraints --- cultivar development --- landraces --- conservation --- agrobiodiversity --- biocultural knowledge --- crop improvement --- dietary diversification --- field gene banks --- planetary healthy diet --- traditional agronomic practices --- non-domesticated legumes --- Vigna racemosa --- Vigna ambacensis --- Vigna reticulata --- Vigna vexillata --- Tanzania --- wild food legumes --- seed priming --- seaweed extract --- biostimulant --- germination energy --- seedling vigour --- consumer-oriented breeding --- consumer-oriented germplasm conservation --- culinary --- farmer–breeder–chef–consumer nexus --- genetic diversity --- heritage seedbank --- local food systems --- seed-savers --- stress tolerance --- anthropocene --- climate resilient --- food and nutritional security --- resource conservation --- underutilized crops --- Sustainable Development Goals --- biomass --- biochar --- soil --- BPLFA --- FPLFA --- DHA --- ammonia-oxidizing bacteria --- electrophoresis --- genetic resources --- neglected hexaploid wheat --- seed-storage proteins --- Crassocephalum crepidioides --- ethnobotany --- generations --- knowledge dynamics --- Launaea taraxacifolia --- use value --- Vernonia amygdalina --- ascorbic acid --- Diplotaxis erucoides --- field --- greenhouse --- new crops --- nitrates --- sinigrin --- traditional crop varieties --- Jerusalem artichoke --- inulin --- fertilization --- polyphenols --- antioxidant capacity --- climate change scenarios --- climate suitability --- fruit selection index --- Maxent --- species distribution modeling --- pre-breeding --- morphotypes --- domestication index --- indigenous knowledge --- sociolinguistic groups --- client-preferred traits --- seed dormancy --- seed germination --- molecular biology --- genetics --- traditional leafy vegetables --- Gynandropsis gynandra --- undomesticated legumes --- legumes --- Vigna species --- domestication --- unexplored legumes --- induced mutation --- lodging resistance --- photosynthetic efficiency --- transcriptomics --- orphan crops --- neglected and underutilized species --- wild edibles --- biodiversity --- food composition --- nutrition --- policy --- breeding --- Macrotyloma geocarpum --- farmers’ preferences --- cropping systems --- constraints --- cultivar development --- landraces --- conservation --- agrobiodiversity --- biocultural knowledge --- crop improvement --- dietary diversification --- field gene banks --- planetary healthy diet --- traditional agronomic practices


Book
Wild Crop Relatives and Associated Biocultural and Traditional Agronomic Practices for Food and Nutritional Security
Authors: --- --- --- ---
Year: 2020 Publisher: Basel, Switzerland MDPI - Multidisciplinary Digital Publishing Institute

Loading...
Export citation

Choose an application

Bookmark

Abstract

The growing world population exerts tremendous pressure on our finite food resources. Since the lion‘s share of the global calorie intake is reliant upon a handful of plant species like rice, wheat, maize, soybean, and potato, it is the need of the hour to expand our dietary reliance to nutritionally rich but neglected, underutilized, and yet-to-be-used wild plants. Such wild plants also have ethnomedicinal and biocultural significance. Owing to their ecosystem plasticity, they can be easily cultivated in diverse soil systems, including marginal, degraded, and other disturbed areas. Due to these resilient attributes, they can be considered for large-scale cultivation. However, proper biotechnological interventions are important for removing the negative traits as well as for standardizing the mass multiplication and cultivation strategies of such species for various agro-climatic regions. This Special Issue, “Wild Crop Relatives and Associated Biocultural and Traditional Agronomic Practices for Food and Nutritional Security”, was dedicated to showcasing the potential wild crop varieties of nutritional significance and associated biocultural knowledge from the diverse agroecological regions of the world and also to formulating suitable policy frameworks for food and nutritional security. The novel recommendations provided by this Special Issue can serve as a stepping-stone for utilizing wild and neglected crops as supplemental foods.

Keywords

non-domesticated legumes --- Vigna racemosa --- Vigna ambacensis --- Vigna reticulata --- Vigna vexillata --- Tanzania --- wild food legumes --- seed priming --- seaweed extract --- biostimulant --- germination energy --- seedling vigour --- consumer-oriented breeding --- consumer-oriented germplasm conservation --- culinary --- farmer–breeder–chef–consumer nexus --- genetic diversity --- heritage seedbank --- local food systems --- seed-savers --- stress tolerance --- anthropocene --- climate resilient --- food and nutritional security --- resource conservation --- underutilized crops --- Sustainable Development Goals --- biomass --- biochar --- soil --- BPLFA --- FPLFA --- DHA --- ammonia-oxidizing bacteria --- electrophoresis --- genetic resources --- neglected hexaploid wheat --- seed-storage proteins --- Crassocephalum crepidioides --- ethnobotany --- generations --- knowledge dynamics --- Launaea taraxacifolia --- use value --- Vernonia amygdalina --- ascorbic acid --- Diplotaxis erucoides --- field --- greenhouse --- new crops --- nitrates --- sinigrin --- traditional crop varieties --- Jerusalem artichoke --- inulin --- fertilization --- polyphenols --- antioxidant capacity --- climate change scenarios --- climate suitability --- fruit selection index --- Maxent --- species distribution modeling --- pre-breeding --- morphotypes --- domestication index --- indigenous knowledge --- sociolinguistic groups --- client-preferred traits --- seed dormancy --- seed germination --- molecular biology --- genetics --- traditional leafy vegetables --- Gynandropsis gynandra --- undomesticated legumes --- legumes --- Vigna species --- domestication --- unexplored legumes --- induced mutation --- lodging resistance --- photosynthetic efficiency --- transcriptomics --- orphan crops --- neglected and underutilized species --- wild edibles --- biodiversity --- food composition --- nutrition --- policy --- breeding --- Macrotyloma geocarpum --- farmers’ preferences --- cropping systems --- constraints --- cultivar development --- landraces --- conservation --- agrobiodiversity --- biocultural knowledge --- crop improvement --- dietary diversification --- field gene banks --- planetary healthy diet --- traditional agronomic practices

Listing 1 - 6 of 6
Sort by