Results 81 to 90 of about 1,187,372 (251)

Investigation of the effects of weight loss on Ovis aries muscle: a proteomic study on three breeds with different levels of adaptation to nutritional stress [PDF]

open access: yes, 2011
Tese de mestrado. Biologia (Biologia Celular e Biotecnologia). Universidade de Lisboa, Faculdade de Ciências, 2011Nos trópicos, a produção animal em regime extensivo enfrenta grandes obstáculos, talvez o maior dos quais é a perda de peso sazonal, devida ...
Palhinhas, Rui MIguel Guerreiro, 1988-
core  

Fruit use and fruit processing by euphonias, specialized avian frugivores

open access: yesOikos, EarlyView.
Euphonias (Neotropical passerines in the genera Euphonia and Chlorophonia) form the quintessential example of a specialized avian frugivore, combining a high reliance on fruit as food and the restriction of fruit taxa exploited. To understand their specialization, we explored the integration of fruit morphological and nutritional traits with their ...
Marco A. Pizo   +3 more
wiley   +1 more source

Genetic mapping of natural variation in potassium concentrations in shoots of Arabidopsis thaliana [PDF]

open access: yes, 2006
Naturally-occurring variation in K+ concentrations between plant genotypes is potentially exploitable in a number of ways, including altering the relationship between K+ accumulation and growth, enhancing salinity resistance, or improving forage quality.
Harada, H., Leigh, R.
core   +1 more source

Effects of bioinsecticide exposure route on aphids and their natural enemies in oilseed rape

open access: yesPest Management Science, EarlyView.
Fatty acids, silicone polymers and surfactants reduced aphid numbers but caused natural enemy mortality under direct exposure, while minimal residual activity suggests potential for targeted, compatible use in integrated pest management. Abstract BACKGROUND Myzus persicae Sulzer and Brevicoryne brassicae L.
Aimee J. Tonks   +3 more
wiley   +1 more source

Livestock breeds and Organic farming systems [PDF]

open access: yes, 2007
Organic livestock farming has grown in Wales in recent years. It is focused on producing animals from a predominantly forage-based system, with an emphasis on maintaining animal health through improved welfare and a reduction in the use of routine ...
Frost, David   +2 more
core  

Genetic factors controlling wool shedding in a composite Easycare sheep flock [PDF]

open access: yes, 2013
Historically, sheep have been selectively bred for desirable traits including wool characteristics. However, recent moves towards extensive farming and reduced farm labour have seen a renewed interest in Easycare breeds.
Aulchenko   +23 more
core   +1 more source

Rhizobacteria regulate colonising Sitobion avenae aphid populations through induced host resistance and alter plant volatiles promoting early parasitoid recruitment on barley (Hordeum vulgare)

open access: yesPest Management Science, EarlyView.
Rhizobacterial inoculation of barley reduced Sitobion avenae populations by inducing plant resistance and modifying volatiles that attracted parasitoid wasps earlier, enhancing both bottom‐up and top‐down pest control. Abstract BACKGROUND Soil rhizobacteria can enhance crop resistance to insect herbivores and influence higher trophic interactions ...
Megan E Parker   +2 more
wiley   +1 more source

ЕФЕКТ НА РАЗЛИЧНИ ИЗТОЧНИЦИ НА СПЕЦИФИЧЕН ВАРИАНС ВЪРХУ ПРИЗНАЦИТЕ НА ВЪЛНОДАЙНАТА ПРОДУКТИВНОСТ ПРИ ОВЦЕ ОТ КАВКАЗКАТА МЕРИНОСОВА ПОРОДА

open access: yesЖивотновъдни науки, 2013
An investigation with 1929 sheep from the Caucasian Merino breed at different age, belonging to the Kabiuk was carried out. The effect of year of birth (A), breeding line (B) and mating scheme (C) on the traits wool yield, staple length, clean wool ...
ГЕНОВЕВА СТАЙКОВА   +1 more
doaj  

Camels as a Climate‐Resilient Linchpin for Sustainable Development in Global Drylands

open access: yesSustainable Development, EarlyView.
ABSTRACT Camels represent a significant, yet underutilized, asset for advancing integrated sustainable development in the world's expanding drylands. Previous reviews have examined camels' physiology, milk composition, or pastoral systems in isolation; this review examines their potential as a climate‐resilient linchpin for food systems by synthesizing
Ayana Angassa   +2 more
wiley   +1 more source

Productivity assessment of sheep from the Karnobat Fine Fleece Breed by genealogical lines

open access: yesЖивотновъдни науки, 2021
Subject of the study were 341 sheep from the Karnobat Fine Fleece breed, ownership of the Institute of Agriculture – Karnobat. The productivity of animals born between 2013 and 2017 was analyzed.
Margarit Iliev   +3 more
doaj  

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