Results 61 to 70 of about 26,750 (276)

Replacing soybean oil with increasing levels of soybean acid oil in diets of coturnix quails (Coturnix coturnix coturnix) and the effects on egg quality [PDF]

open access: yesAnais da Academia Brasileira de Ciências, 2017
The effects of increasing levels of soybean acid oil in diets of quails on the quality of eggs were evaluated over a period of 56 days. A completely randomized design with five treatment levels of soybean acid oil (0, 2, 4, 6, and 8%) as a replacer for soybean oil and eight replicates of two quails each were used.
ROLL, ALINE A.P.   +5 more
openaire   +7 more sources

Pay up or die: Tradeoffs between costly telomere maintenance, somatic growth and body condition in embryonic and adult sand lizards

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Current knowledge about telomere biology relies to a very high degree on results from research on endotherms. This would not be problematic if organisms shared the same mechanisms regulating telomere length (TL) but this is not necessarily the case; for example, most ...
Mats Olsson   +3 more
wiley   +1 more source

Avaliação de características de desempenho e de carcaça de codornas de corte por meio da análise de componentes principais Evaluation of production and carcass traits of meat - type quails by principal components analysis

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2009
Foram utilizados dados de 288 codornas de corte (Coturnix coturnix coturnix) para avaliar a possibilidade de resumir a informação contida no complexo de variáveis originais, eliminando-se variáveis inexpressivas por meio da técnica de componentes ...
C.D.S. Leite   +6 more
doaj   +1 more source

Salmonella spp. in meat-type quails (Coturnix coturnix coturnix) in the State of São Paulo, Brazil [PDF]

open access: yesRevista Brasileira de Ciência Avícola, 2013
In the present study Salmonella spp. was surveyed in four flocks of meat-type quails reared in a farm that also had processing plant on site, located in the region of Bastos, state of São Paulo, Brazil. Meconium samples of one-day-old quail chicks were collected from transport cardboard boxes. Cecal content was collected on days 7, 14, 21, 28 and 35 of
Freitas Neto, Oliveiro Caetano de   +5 more
openaire   +6 more sources

Peering into the world of wild passerines with 3D‐SOCS: Synchronized video capture and posture estimation

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Collection of large behavioural data‐sets on wild animals in natural habitats is vital in ecology and evolution studies. Recent progress in machine learning and computer vision, combined with inexpensive microcomputers, has unlocked a new frontier of fine‐scale markerless measurements.
Michael Chimento   +3 more
wiley   +1 more source

Study on eggs of Japanese quail (Coturnix coturnix japonica) during incubation in the controlled laboratory conditions [PDF]

open access: yes, 2012
Study on newly laid eggs of Japanese quail Coturnix coturnix japonica was undertaken for a period of 18 days on incubation in controlled laboratory conditions.
Bhagat, R. A. Patil   +2 more
core   +2 more sources

Effects of Anthropogenic Introduction of Substrates on Egg Camouflage and Nesting Success in Ground‐Nesting Birds

open access: yesAnimal Conservation, EarlyView.
We show that the introduction of artificial substrates, in this case, dredged materials to act as nesting substrate for ground‐nesting birds, reduced the effectiveness of egg camouflage for Kentish plovers compared to natural substrates. However, nesting success was not impacted, likely because the community of nest predators was diverse and used a ...
Gustavo Liñán‐Cembrano   +5 more
wiley   +1 more source

Species composition and distribution of gallinaceous birds (Aves, Galliformes) in the south of eastern Europe during the Late Pleistocene and Holocene—a review

open access: yesBoreas, EarlyView.
This study investigates the species composition and distribution of gallinaceous birds (Galliformes) in the south of eastern Europe, specifically within the territory of present‐day Ukraine, during the Late Pleistocene and Holocene. The research is based on the comprehensive revision of skeletal remains found at archaeological sites.
Leonid Gorobets   +3 more
wiley   +1 more source

Consistent and flexible maternal effects: how the environments of a mother influence the offspring phenotype

open access: yesBiological Reviews, EarlyView.
ABSTRACT The environment experienced by a mother influences offspring phenotype through maternal effects, which can have significant adaptive benefits for both the mother and the offspring. However, the ways in which maternal environments influence offspring development are extremely diverse, and empirical studies using an outcome‐based approach often ...
Sin‐Yeon Kim, Judith Morales
wiley   +1 more source

Aflatoxicosis in the Laying Japanese Quail (Coturnix Coturnix Japonica)

open access: yesPoultry Science, 1973
Abstract Dietary aflatoxins fed to 72 day old laying Japanese quail for six weeks at low levels of 2, 4, or 6 μg./gm. of feed caused malperformances. There were changes in feed conversion, egg production, egg weight, hatchability, and exterior and interior quality of the eggs.
D. S. Sawhney   +2 more
openaire   +3 more sources

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