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Marker assisted selection or marker aided selection (MAS) is an indirect selection process where a trait of interest is selected based on a marker (morphological, biochemical or DNA/RNA variation) linked to a trait of interest (e.g. productivity, disease resistance, abiotic stress tolerance, and quality), rather than on the trait itself.
Issues prior to Jan. 1978 were classed: A 93.15:(nos.) Title from caption Some issues accompanied by supplement "Approved by the World Food and Agriculture Outlook and Situation Board."
Animal breeding is a branch of animal science that addresses the evaluation (using best linear unbiased prediction and other methods) of the genetic value (estimated breeding value, EBV) of livestock. Selecting for breeding animals with superior EBV in growth rate, egg, meat, milk, or wool production, or with other desirable traits has ...
Issues prior to Jan. 1978 were classed: A 93.15:(nos.) Title from caption Some issues accompanied by supplement "Approved by the World Food and Agriculture Outlook and Situation Board."
Tandem selection is a method of artificial selection in which useful traits are selected for sequentially. [1] For instance, one could select for both increased milk yield and increased milk fat content in cows via tandem selection by first selecting those with the best of one trait, production of high milk yield, and then when that trait is at a satisfactory level, by starting to select for ...
Pasture intensification is the improvement of pasture soils and grasses to increase the food production potential of livestock systems. It is commonly used to reverse pasture degradation , a process characterized by loss of forage and decreased animal carrying capacity which results from overgrazing , poor nutrient management , and lack of soil ...
It uses between 20 and 33% of the world's fresh water, [81] Livestock, and the production of feed for them, occupy about a third of the Earth's ice-free land. [82] Livestock production contributes to species extinction, desertification, [83] and habitat destruction. [84] and is the primary driver of the Holocene extinction.
Sustainable agriculture consists of environment friendly methods of farming that allow the production of crops or livestock without causing damage to human or natural systems. It involves preventing adverse effects on soil, water, biodiversity, and surrounding or downstream resources, as well as to those working or living on the farm or in ...