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| Registros recuperados: 36 | |
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| Fleury, Pierre-gildas; Mingant, Christian; Castillo, A. |
| In order to have a better understanding of recessing in great scallop, Pecten maximus and consequently the causes of mortality at reseeding, this study has monitored, at different seasons, the dispersion and recessing of different sizes of juveniles (about 15, 30 and 45 mm, called small, medium and large) after seeding. Moreover, the aim was to see when small spat (15 mm) could be seeded, and thus reduce the costs of intermediate culture. Three monitoring approaches were used together: (1) continual observations by remote video camera, of a defined area (less than 1 m2) containing 10 scallops from each size group; (2) daily monitoring of behaviour with divers along three bottom lines, with 20 × 1 m2 plots each and nine marked scallops per plot; and (3) the... |
| Tipo: Text |
Palavras-chave: Behaviour; Great scallop (Pecten maximus); Season; Seeding; Size; Vitality of spat. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00326/43752/43284.pdf |
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| Gul,B; Islam,M; Ahmad,S; Gul,S. |
| Spatial and temporal patterns of aboveground biomass and nutritive value of rangeland species with respect to the influence of grazing and soil moisture were investigated. The research was conducted during two years at the Tomagh Research Station, near Sanjawi, Ziarat District, Balochistan, Pakistan. This area is protected from grazing since 1998; however, some of the area is open for grazing. Tree sites were selected for research purposes: a protected plain, a protected hilly, and an unprotected plain grazed area. Sampling was carried out during the spring, summer and autumn seasons. Results revealed that soil moisture was greater at the protected than unprotected sites. The aboveground plant biomass was 66% to 76% lower at unprotected than protected... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rangeland; Biomass production; Season; Semiarid; Grazing; Grass. |
| Ano: 2016 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572016000100013 |
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| Muñoz-Sáez,Andrés; Perez-Quezada,Jorge F.; Estades,Cristián F.. |
| Abstract Background: Understanding the role of agroecosystems as habitat for wildlife is crucial for long-term conservation planning, as different crop stratification and landscape elements can influence bird communities, which are also affected by seasonality. The goal of our study was to determine how agricultural landscapes varying in land cover characteristics affect bird richness and abundance. Bird surveys were conducted at 110 locations within agricultural landscapes in central Chile. The surveyed areas were characterized by land cover at two scales (50 and 500 m radii) through direct observation and photo-interpretation, during winter and spring seasons. Generalized Linear Mixed Models were used to evaluate the effects of different agricultural... |
| Tipo: Journal article |
Palavras-chave: Hedgerows; Season; Orchards; Low crops; Avian communities. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2017000100202 |
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| Baliscei, Marcio Antonio; Instituto Paranaense de Assistencia Tecnica e Extencao Rural; Souza, Wander de; Instituto Paranaense de Assistência Técnica e Extensão Rural; Barbosa, Orlando Rus; Universidade Estadual de Maringá; Cecato, Ulysses; Universidade Estadual de Maringá; Krutzmann, Alexandre; Universidade Estadual de Maringá; Queiroz, Edicarlos de Oliveira; Universidade Estadual de Maringá. |
| It was evaluated the intake behavior of Nellore steers in system without shade (WS), and silvopastoral system (SP) maintained in star grass (Cynodon plectostachyus) in summer and winter. Twenty-four Nellore steers were used (12 in each system), mean age 18 months and weight of 294.5 kg. The design was completely randomized with two seasons, two treatments, 24 hours and 12 repetitions. The observations were conducted in three days, for 24 hours, with an interval of 15 minutes, with effect of the hour on the grazing behavior (GRAZ) with a maximum of 52.1% and lying ruminating (LYRUM) with a minimum of 12.3%, both at 14h. The lying idle (LYIDL) was influenced by hour with a minimum of 11,6%at 14h, and by season, with 23.9% in summer, and 13.9%, in winter.... |
| Tipo: Pesquisa de campo |
Palavras-chave: Welfare; Season; Nelore; Shadow welfare; Season; Nelore; Shadow. |
| Ano: 2012 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/15055 |
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| Ali,M. N; Onyeanusi,B. I; Ayo,J. O; Ojo,S. A; Salami,S. O; Nzalak,J. O; Byanet,O. |
| The study was carried out to determine the effect of season on the female reproductive organs of the African Giant rat using the standard methods, with the aim of obtaining the base-line values. The weights of the oviduct/uterus, vagina and the entire tubular organ were consistently higher during the harmattan season (0.789 ± 0.07 g, 2.708 ± 0.19 g and 3.455 ± 0.25 g, respectively) than the hot dry (0.591 ± 0.02 g, 2.239 ± 0.13 g and 2.831 ± 0.14 g, respectively) and the rainy season (0.723 ± 0.04 g, 2.412 ± 0.01 g and 3.148 ± 0.12 g, respectively). The mean weight and length of the ovary were not significantly different throughout the season, suggesting that the AGR may breed throughout the year. The slight increase in the weight of the tubular organ... |
| Tipo: Journal article |
Palavras-chave: Season; Reproductive organs; Female; African giant Rat. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300029 |
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| Rehman,Sadia; Mahmood-ul-Hassan,; Qureshi,Anas Sarwar; Akbar,Zeeshan. |
| The present study was designed to determine the morphological and histological variations in the female palm squirrel's reproductive organs which inhabit croplands of central Punjab. 16 specimens were collected from 3 different locations of Faisalabad district during different months in order to collect their ovaries samples in order to determine the breeding phenology of this species. Body weight and external body measurements were recorded. Two adult females were autopsied each month and their ovaries were extracted. Tissue were prepared by the tissue paraffin technique and stained by H&E. Seasonal variations in the follicular size and shape were observed. Statistical analysis revealed that values of all parameters of ovaries were significantly... |
| Tipo: Journal article |
Palavras-chave: Squirrels; Folliculogenesis; Ovaries; Season. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000100037 |
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| Arikan,MS; Akin,AC; Akcay,A; Aral,Y; Sariozkan,S; Cevrimli,MB; Polat,M. |
| ABSTRACT This study aimed at determining the total losses associated with the season, transportation distance, and slaughter age during the transportation of broilers from poultry farms to slaughterhouses in Turkey. All data and parameters were statistically analyzed and the change in total loss during transportation was evaluated by two-way analysis of variance to determine which factors or variables affect this change. Total transportation losses were compared among the four seasons of the year, two slaughter ages (younger broiler, 31-39 days of age; older broilers 40-46 days of age) and three distance ranges (short, ≤50 km; medium, 51-150 km; and long, ≥151 km). Total losses of 259.40 g, 307.35 g, and 350.14 g were determined for short, medium and long... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Transportation; Broiler production; Slaughter age; Season; Weight losses. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2017000300421 |
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| Li,Jun; Wu,Zelong; Yuan,Jun. |
| ABSTRACT The production of Camellia oleifera (oil tea), typically planted in acidic red soils in southern China, is limited by low soil fertility. Agro-farming is one way to promote soil fertility by increasing organic matter and microbial communities. To understand the impact of agro-farming activity on soil fertility, three types of agro-farming, namely, raising laying hens under forest (RLH), cultivating Lolium perenne grass under forest (LPG), and maintenance of native grass (MNG), were employed in an oil tea farm with acidic red soil in Changsha, China. Soil samples were collected from the farm to estimate microbial communities, pH, and total organic carbon (TOC) in different seasons. The results indicated that TOC and temperature were the dominant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oil tea; Season; Soil microbial community; High throughput sequencing. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832019000100413 |
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| Wilhelm Filho,D.; Torres,M.A.; Tribess,T.B.; Pedrosa,R.C.; Soares,C.H.L.. |
| The livers of Geophagus brasiliensis collected from both a non-polluted site and a polluted site were analyzed for different antioxidant defenses, O2 consumption, thiobarbituric acid-reactive substance (TBARS) levels, and histological damage. Compared to controls (116.6 ± 26.1 nmol g-1), TBARS levels were enhanced at the polluted site (284.2 ± 25.6 nmol g-1), as also was oxygen consumption (86.6 ± 11.3 and 128.5 ± 9.8 µmol O2 min-1 g-1, respectively). With respect to enzymatic antioxidants, increased catalase activities (8.7 ± 1.3 and 29.2 ± 2.4 mmol min-1 g-1, respectively), unchanged superoxide dismutase activities (767.2 ± 113.3 and 563.3 ± 70.2 U g-1, respectively), and diminished glutathione S-transferase activities (29.0 ± 3.2 and 14.9 ± 3.2 µmol... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oxyradicals; Antioxidant defenses; Fish; Acará; Season; Pollution; Adaptation. |
| Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000600004 |
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| BAHADIR KOCA,Seval; ARGUN UZUNMEHMETOĞLU,Esra. |
| Abstract Effects of interaction of season, sex and size on nutrient composition and fatty acid profiles of freshwater crayfish (Astacus leptodactylus) caught from the Eğirdir Lake were investigated on a factorial level. In the factorial analysis; 4 levels of season factors (autumn, winter, spring, summer), 2 levels of sex factor (male, female) and 1 level size factor were available. According to the results of biochemical analysis, effects of seasons were determined on crude protein and moisture levels. Crude ash levels changed depending on sex and season. There were no interactions of these three factors on the crude fat levels. The season and sex affected on LA, α-LNA and ∑HUFA levels. ARA, EPA, DHA, ∑SFA and ∑PUFA levels were affected from seasonal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Astacus leptodactylus; Biochemical composition; Fatty acid; Season; Sex. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612018000500044 |
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| Santos, Manoel Eduardo Rozalino; Universidade Federal do Vale do São Francisco; Gomes, Virgilio Mesquita; Universidade Federal de Viçosa; Fonseca, Dilermando Miranda da; Universidade Federal de Viçosa; Albino, Ronan Lopes; Universidade Federal de Viçosa; Silva, Simone Pedro da; Universidade Federal de Viçosa; Santos, Andreza Luzia; Universidade Federal de Viçosa. |
| Objetivou-se identificar, pela avaliação do perfilhamento, as estratégias adequadas de manejo da Brachiaria decumbens cv. Basilisk em lotação contínua com bovinos. Foram estudadas duas estratégias de manejo: pasto com 25 cm de altura durante todo período experimental, e pasto com 15 cm no inverno e 25 cm na primavera e verão. Foram adotados o esquema de parcelas subdivididas e o delineamento em blocos casualizados com quatro repetições. As estratégias de manejo foram o fator primário e as estações (inverno, primavera e verão), o fator secundário. O menor balanço entre taxas de aparecimento (TApP) e de mortalidade de perfilhos (TMoP) e o menor número de perfilho vegetativo ocorreram no inverno. Na primavera e verão, o balanço e o número de perfilhos... |
| Tipo: Pesquisa Científica |
Palavras-chave: 5.04.04.00-8 altura do pasto; Brachiaria decumbens; Estação do ano; Manejo sazonal; Pastejo sward height; Brachiaria decumbens; Season; Seasonal management; Grazing. |
| Ano: 2011 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/10440 |
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| Tumialis,Dorota; Pezowicz,Elżbieta; Skrzecz,Iwona; Mazurkiewicz,Anna; Maszewska,Justyna; Pietraszczyk,Joanna Jarmuł; Kucharska,Kornelia. |
| ABSTRACT: Entomopathogenic nematodes ( Steinernematidaeand Heterorhabditidae) were studied in Polish soils according to the: season, habitat and altitude. In total, 167 soil samples were taken from 111 localities in Poland along north-south transect. Entomopathogenic nematodes were isolated from 53 soil samples (31.7%). Nematodes species were identified genetically from 16 samples, and in all other 37 samples nematodes were determined to the genus level. Three species of the genus Steinernema ( Steinernema kraussei, S. feltiae, S. carpocapsae) and one of the genus Heterorhabditis( Heterorhabditis megidis) were recorded. Steinernema feltiaewas the most common species. There was not a significant association between the occurrence of nematodes and season... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Steinernema; Heterorhabditis; Poland; Season; Habitat. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000701126 |
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| MORATO,Ronaldo Gonçalves; GUIMARÃES,Marcelo Alcindo Barros de Vaz; FERREIRA,Fernando; VERRESCHI,Ieda Terezinha do Nascimento; BARNABE,Renato Campanarut. |
| Ejaculate traits, testicular volume and plasma testosterone levels were determined once every two months for one year in 4 adult male jaguars (Panthera onca) housed at the São Paulo Zoo, SP, Brazil. Semen samples was collected by electroejaculation and analyzed for pH, total volume, motility (0-100%), status (0-5), total spermatozoa count and morphology. Blood samples was obtained by cephalic venipuncture immediately before the onset of electroejaculation and stored at -20ºC until assay of testosterone by RIA. Using a calliper, the length and width of each testis was measured and the values were combined to determine the testicular volume. Semen analyses demonstrated a high percentage of structurally abnormal sperm (mean = 51%) and low rates of motility... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Jaguars; Semen characters; Testosterone; Season. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95961999000500008 |
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| Registros recuperados: 36 | |
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