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| Registros recuperados: 14 | |
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| Sommavilla,Roberta; Costa,Osmar Antonio Dalla; Honorato,Luciana Aparecida; Cardoso,Clarissa Silva; Hötzel,Maria José. |
| The objective of this study was to investigate if piglets that suck anterior teats differ from the others in the litter in birth weight, if they have higher growth rate during lactation, and if this affects behaviour and post-weaning weight gain, when piglets change to a solid diet. For this, the teat order of 24 litters was determined during suckling. Piglets were weaned on the 28thday of age, and 24 groups were formed, composed of one piglet that sucked on the first two pairs of teats (AT) and three piglets that sucked on the other teats (OT). Even though weight at birth did not vary according to teat order, weight gain at weaning differed between the groups (AT: 6.64, S.E. 0.20kg, OT: 5.73, S.E. 0.13kg; P<0.001). After weaning, AT piglets spent more... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Weaning; Social behaviour; Vocalization; Feeding; Stress. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000901660 |
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| Leon,Evelina; Peltzer,Paola M.; Lorenzon,Rodrigo; Lajmanovich,Rafael C.; Beltzer,Adolfo H.. |
| ABSTRACT Increased anthropogenic-made sounds such as traffic noises contribute to acoustic pollution, which produces deleterious effect on song-vertebrates. We compared the advertisement call of Scinax nasicus (Cope, 1862) males in natural (as a reference or control, Site A) and Sites affected by traffic noises (Site B). Call structure was recorded and it was amplified in sonograms (software Raven Pro 1.5). Seven variables were measured on its advertisement call: duration (s), number of notes, number of pulses per note, maximum and minimum frequency (kHz), dominant frequency (kHz) and amplitude (dB). In addition, at each Site the background noise (the fundamental frequency, F0 and amplitude, dB) was measured. The amplitude of background noise reached... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amphibians; Vocalization; Vocal adjust; Hylidae. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212019000100207 |
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| Guimarães,Lorena dall'Ara; Bastos,Rogério P.. |
| The vocalizations of H. raniceps (Cope, 1826) and their functions are described, including an analysis of the influence of temperature, weight, or SVL (snout-vent length) of males on the acoustic parameters. The vocalizations were recorded in three areas in Fazenda Lagoa Grande, Municipality of Pontalina, State of Goiás, central Brazil. Males began their vocalizations just before sunset, extending them, in some cases, to dawn of the following day. The peak of activities happened between 21h and 23h. The height of calling sites varied plenty, being the position horizontal in about 50% of them. Males defended sites in different areas during consecutive nights. Rain and strong winds interrupted the calling activities. Males emitted three vocalizations:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anura; Hylidae; Hyla; Vocalization; Acoustic parameters. |
| Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212003000200005 |
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| Göth, A.; Vogel, U.; Curio, E.. |
| The acoustic communication of the Polynesian megapode Megapodius pritchardii G.R. Gray, 1864, was studied and analysed for the first time. Adults pair up monogamously and the male produces so called whistles while guarding its mate. The three-element song of the male together with the females`s “coo” call are combined to produce a duet. Depending on the social context, either sex may initiate the duet. Both male song and duet serve mainly in territorial defence. Neighbouring pairs often answer by producing the same sound in response to any one of three vocalizations (song, duet, whistle). “Clucks” are additional sounds with a social function uttered by both sexes. When handled, adults and chicks utter “distress calls”; in chicks, these are the only sounds... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Polynesian megapode; Megapodius pritchardii; Vocalization; Repertoire; Duet; Signal function; 42.83. |
| Ano: 1999 |
URL: http://www.repository.naturalis.nl/record/219419 |
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| Taucce,Pedro P. G.; Leite,Felipe S. F.; Santos,Patrícia S.; Feio,Renato N.; Garcia,Paulo C. A.. |
| Ischnocnema izecksohni inhabits the gallery forests from the Quadrilátero Ferrífero, Southern Espinhaço range, state of Minas Gerais, southeastern Brazil, and it is considered endemic to this region. Its closest related species is I. nasuta according to the original description. We describe the advertisement call of I. izecksohni based on specimens recorded and collected at the municipality of Nova Lima, state of Minas Gerais, distant about 10 km straight line from its type locality. The advertisement call consists of a group of notes emitted sporadically without a regular interval between the calls. Call duration (n = 36 calls in four individuals) ranged from 1.03 to 1.85 s (= 1.52 ± 0.21 s) and the call rise time from 0.66 to 1.52 s (= 1.16 ± 0.25 s),... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Vocalization; Taxonomy; Polymorphism; Ischnocnema guentheri species series. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012000900001 |
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| Rufino,Sâmara Raiany de Almeida; Azevedo,Rafael Alves de; Furini,Pamela Michéli; Campos,Mariana Magalhães; Machado,Fernanda Samarini; Pires,Maria de Fátima Avila; Lima,Juliana Aparecida Mello; Coelho,Sandra Gesteira. |
| Abstract: The objective of this work was to evaluate the effects of increasing the contents of total solids (TS) in whole milk, by adding increasing amounts of milk replacer powder, on the behavior of dairy heifers. Holstein-Gyr crossbred heifers (n = 60) were distributed in four treatments: 13.5, 16.1, 18.2, and 20.4% TS. From 5 to 55 days of age, heifers received 6 L per day of liquid feed, which was reduced by half from 56 to 59 days. Heifers were weaned at 60 days of age and monitored until 90 days, and their behavior was evaluated weekly. During gradual weaning and after weaning, heifer behavior was recorded 1 hour before and 1 hour after liquid feed was offered, and, during weaning, it was evaluated by the scan method. Heifers fed liquid feed... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Stress; Vocalization; Weaning. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2019000104310 |
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| Mângia,Sarah; Santana,Diego José; Mariotto,Lucas Ribeiro. |
| ABSTRACT Vocalizations are often useful for understanding taxonomic relationships among anuran species. Despite this usefulness, vocalizations are described in only nine of 29 in Melanophryniscus Gallardo, 1961. Here we describe the advertisement call of Melanophryniscus xanthostomus Baldo, Bornschein, Pie, Ribeiro, Firkowski & Morato, 2015 of a population from Serra Dona Francisca, municipality of Campo Alegre, state of Santa Catarina, Brazil. The advertisement call (of three males, total of 17 calls) comprises two segments (the first with short and single notes, followed by a multi-pulsed note), with a duration of 12.194-20.986 s, and dominant frequency of 3101-3618 Hz (first and second segments combined). The advertisement call of M. xanthostomus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Atlantic Forest; Bioacoustic; Call description; Natural history; Vocalization. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100319 |
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| Registros recuperados: 14 | |
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