Partridges
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Body Morphometry and Development of the Digestive System of Grey Partridge (Perdix Perdix) Depending on Age and Gender
ABSTRACT The experiment used 100 grey partridges (Perdix perdix L.), which were reared first in confinement and later in aviaries. Partridges were lighter and had greater body dimensions at 36 weeks compared to 12 weeks except for trunk length. Older birds showed greater values (p>0.05) of compactness and lower values of massiveness and long-leggedness. Sign
Rev. Bras. Cienc. Avic.. Publicado em: 2017-12
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2. The Effect of Eggshell Thickness on Hatching Traits of Partridges
ABSTRACT Incubation is an important factor in poultry production, particularly in species with relatively low fertility and hatchability rates. This study examined the effect of eggshell thickness on hatching traits of partridges (A. chukar). A total of 462 eggs from intensively reared partridges were separated into three groups according to eggshell thickne
Rev. Bras. Cienc. Avic.. Publicado em: 2016-09
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3. Enzymatic antioxidant activity and resistance against the oxidative stress in semen of captive partridges (Rhynchotus rufescens) supplemented with selenium / Dosagem dos níveis de anti-oxidantes enzimáticos e resistência celular ao estresse oxidativo, do sêmen de perdizes (Rhynchotus rufescens) criadas em cativeiro e suplementadas com selênio
Considerando a importância comercial da perdiz (Rhynchotus rufescens), implantou-se algumas biotecnologias reprodutivas. Trinta animais foram divididos aleatoriamente em dois grupos: controle (sem selênio orgânico) e tratamento (com 0,2 a 0,8mg de selênio em 1000kgs de ração ), provenientes da FCAV-UNESP/Jaboticabal (2007-2008). Coletou-se semên por e
Publicado em: 2008
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4. Reproductive parameters of captive male partridge (Rhynchotus rufescens): artificial insemination versus natural service / Parâmetros reprodutivos de perdizes machos (Rhynchotus rufescens) criadas em cativeiro: comparação entre os índices reprodutivos de animais acasalados e inseminados
The partridge (Rhynchotus rufescens) belongs to the tinamidae family and possesses breast muscles which are quite appreciated in high cuisine However, there is an insignificant large scale production, which could be improved using the artificial insemination (AI). The present experiment aimed to standardize semen collection and the hipoosmotic swelling test
Publicado em: 2006
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5. Behavioural aspects of the Partridge (Rhynchotus rufescens) in captivity during the reproductive phase: a case study. / Aspectos comportamentais da Perdiz (Rhynchotus rufescens) em cativeiro durante a fase reprodutiva: um estudo de caso.
The species Rhynchotus rufescens, a native bird of Brazil, popularly denominated partridge or pellet, has been showing easy adaptation to captivity and a great potential to be explored zootechnically, with the possibility of the use of its meat as an alternative source of proteins, since the meat of wild animals is a nourishment alternative in many countries
Publicado em: 2003
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6. Testosterone-mediated trade-offs in the old age: a new approach to the immunocompetence handicap and carotenoid-based sexual signalling
The immunocompetence handicap hypothesis proposes that testosterone mediates a trade-off between sexual signalling and immunocompetence in males. Such a trade-off could favour the reliability of sexual signals on the basis that testosterone required for signal expression also promotes immunosuppression. However, the immunosuppressive activity of testosterone
The Royal Society.
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7. The genetic link between the Chinese bamboo partridge (Bambusicola thoracica) and the chicken and junglefowls of the genus Gallus.
Further comparison of mitochondrial control-region DNA base sequences of 16 avian species belonging to the subfamily Phasianinae revealed the following: (i) Generalized perdicine birds (quails and partridges) are of ancient lineages. Even the closest pair, the common quail (Coturnix coturnix japonica) and the Chinese bamboo partridge (Bambusicola thoracica),