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| Assis,V.D.L.; Carvalho,T.S.G.; Saad,C.E.P.; Miyagi,E.S.; Gionbelli,M.P.. |
| RESUMO As calopsitas são consideradas aves monogâmicas, atingem a maturidade sexual aos 12 meses, com postura variando entre três a sete ovos. São classificadas como granívoros, embora alguns estudos tenham demonstrado uma grande diversidade nos hábitos alimentares. Este trabalho foi realizado em caráter investigativo, com o objetivo de comparar o efeito de dietas na reprodução de calopsitas, assim como efetuar um levantamento dos parâmetros reprodutivos da espécie. O experimento foi feito na Universidade Federal de Lavras. As análises estatísticas foram realizadas utilizando-se o GLM do SAS (Statistical Analysis System, Cary, NC, USA). A variável ordem de postura apresentou significância (P<0,1) com as variáveis espessura da casca, peso do ovo e tempo... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Nymphicus hollandicus; Ovos; Postura; Psitacídeos. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352018000300830 |
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| Carvalho,T.S.G.; Zangeronimo,M.G.; Saad,C.E.P.; Alvarenga,R.R.; Assis,V.D.L.; Pereira,V.M.; Scalon,J.D.; Silva,J.P.. |
| Behavioural studies with cockatiels (Nymphicus hollandicus) in captivity are scarce. Due to the need for appropriate management of these animals, this study was performed to examine the behaviour of cockatiels kept in captivity at two temperatures. Sixteen cockatiels were individually housed in cages (62cm high x 43cm long x 27cm wide) and fed with a commercial ration and seed mixture for psittacids. Water was provided ad libitum. The eight-day experiment was divided into two stages of four days each. In the first stage, the birds were kept at room temperature (25°C) with 70% relative humidity during 24 hours. In the next stage, they were kept at 35°C from 06:00 to 18:00h and 25°C from 18:00 to 06:00h, also at 70% relative humidity. The behaviour of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Psittaciformes; Parrot; Thermal comfort; Captivity; Animal welfare. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601669 |
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| Assis,V.D.L.; Carvalho,T.S.G.; Pereira,V.M.; Freitas,R.T.F.; Saad,C.E.P.; Costa,A.C.; Silva,A.A.A.. |
| ABSTRACT This study evaluated the influence of physical environmental enrichment on the behavior of cockatiels (Nymphicus hollandicus). Eighteen birds, nine males and nine females, were monitored in environments enriched with wooden sticks and bead rings and in non-enriched environments, in a completely randomized design. Behavioral categories were grouped into locomotion, maintenance, rest, feed, undesirable activities, and interaction with environmental enrichment. Data were analyzed using descriptive analysis of behaviors to produce the ethogram and percentage comparison of frequency values for behavior analysis. Environmental enrichment positively influenced behavioral categories and some behavioral activities of birds. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ethogram; Parrot; Stress; Wild animal. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352016000300562 |
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| Naves,D.A.S.; Carvalho,T.S.G.; Zangeronimo,M.G.; Saad,C.E.P.; Scalon,J.D.. |
| ABSTRACT In order to improve the management and maintenance of the quality of life of captive wild birds, this study aimed to assess the food preferences of cockatiel chicks (Nymphicus hollandicus) kept in captivity. Thirty-two cockatiel chicks, three to 12 months of age, were kept in a galvanized, wire-netted vivarium with six ceramic feeders, two for an extruded diet, two for a dry-mashed diet and two for a seed mixture. Both extruded and dry-mashed food are commercial psittacine diets. Three round ceramic pots were used to provide water. The birds were exposed to 12 hours of artificial light (40 W incandescent lamps) during the experimental period of 27 days. The birds were observed by video filming, daily, through an ad libitum observation technique.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Animal behavior; Psittacines; Extruded food; Food intake; Seeds. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300683 |
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| Carvalho,T.S.G.; Abreu,C.C.; Nakayama,P.A.; Wouters,F.; Saad,C.E.P.; Zangeronimo,M.G.. |
| ABSTRACT Undifferentiated carcinoma of the pancreas is a malignant neoplasm that is uncommon among domestic species, especially cockatiels (Nymphicus hollandicus), one of the most popular birds kept as a pet throughout the world. The aim of this study was to describe the occurrence of an undifferentiated carcinoma in the pancreas of a cockatiel. A bird, an adult male that died naturally with swelling in the abdominal region, was referred to necropsy. Macroscopic examination showed poor body condition, the coelomic cavity filled with liquid and a white mass attached to the pancreas and other smaller masses attached to the duodenum. Tissue samples and organs were harvested and fixed in 10% buffered formalin, then routinely processed for histopathology and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pancreatic cancer; Epithelial tumor; Histopathology; Parrot; Cacatuidae. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300600 |
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| Carvalho,T.S.G.; Saad,C.E.P.; Alvarenga,R.R.; Ferreira,W.M.; Assis,V.D.L.; Pereira,V.M.; Scalon,J.D.; Silva,J.P.; Zangeronimo,M.G.. |
| ABSTRACT The objective of this study was to evaluate the influence of collard green stalks as environmental enrichment on the behavior of cockatiels (Nymphicus hollandicus) maintained in captivity. Sixteen birds were housed individually in cages and fed a commercial diet for parrots and seed mix, with water ad libitum during 12 days in climatic chamber with temperature and relative humidity simulating tropical conditions. The animals (n = 8) were divided into two groups, control and enriched, and the experimental period was divided into two phases (during and after enrichment) of four days each. The collard green stalks were used as enrichment only during the first period of the experiment, daily changed and maintained only during the day. The stalks... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Birds; Animal welfare; Captive animals; Food enrichment; Psittacine. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352017000300718 |
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