Animal Reproductive Behavior
Mostrando 1-12 de 47 artigos, teses e dissertações.
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1. Effects of growth hormone in the central nervous system
ABSTRACT Growth hormone (GH) is best known for its effect stimulating tissue and somatic growth through the regulation of cell division, regeneration and proliferation. However, GH-responsive neurons are spread over the entire central nervous system, suggesting that they have important roles in the brain. The objective of the present review is to summarize a
Arch. Endocrinol. Metab.. Publicado em: 10/01/2020
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2. Análise bioeconômica do farelo de arroz na recria de bezerras de corte em azevém
RESUMO Objetivou-se avaliar a economicidade, o desempenho produtivo e o desenvolvimento das estruturas corporais relacionadas ao trato reprodutivo de bezerras de corte mantidas exclusivamente em pastagem de azevém (Lolium multiflorum Lam.) ou em pastagem de azevém recebendo 0,5 e 1,0% do peso corporal (PC) de farelo de arroz integral (FAI) como suplemento.
Arq. Bras. Med. Vet. Zootec.. Publicado em: 10/10/2019
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3. REPRODUCTIVE EFFICIENCY AND BEHAVIOR OF PREGNANT SOWS HOUSED IN CAGES AND COLLECTIVE PENS WITH OR WITHOUT BEDDING
ABSTRACT This study aimed to evaluate the effect of wood shaving bedding on pregnant sows under two housing conditions. Sixty-four animals were distributed into four treatments, each treatment included 54 sows split into three replicates. A 2 × 2 factorial design was used (two types of housing, collective pens (CP) and combined housing (cages + CP [CCP]); a
Eng. Agríc.. Publicado em: 25/04/2019
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4. Presence of roosters in an alternative egg production system aiming at animal welfare
ABSTRACT The objective of this study was to evaluate the effect of the presence of roosters on welfare and egg production of laying hens reared in an alternative system. Two breeding systems were established: barn 1 - laying hens reared without roosters (4500 birds); and barn 2 - laying hens reared with roosters (4500 layers and 250 roosters). In the poultry
R. Bras. Zootec.. Publicado em: 2017-03
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5. Substrate preference by the porcelain crab Pachycheles monilifer (Crustacea, Anomura): the bryozoan Schizoporella errata or the polychaete Phragmatopoma caudata?
Differences on reproductive performance between two sampling points of the porcelain crab Pachycheles monilifer from Ubatuba (São Paulo, Brazil), one from Itaguá Beach (living on Schizoporella errata) and the other from Grande Beach (living on Phragmatopoma caudata) has been previously observed. Therefore could be expected a specific behavior in substrate
Nauplius. Publicado em: 2014-12
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6. Caracterização do comportamento materno e suas implicações no desenvovimento fisico,na função reprodutiva e no perfil hormonal da prole feminina de ratas UChA e UChB (consumidoras voluntárias de etanol a 10%) / Maternal care evaluation and effecta of the physical development, reproductive functions and hormonal profile of UChA UChB rats female offspring (10% v/v ethanol voluntary intake)
Estudos realizados com mães dependentes de etanol demonstraram que elas apresentam maior dificuldade em cuidar de suas crianças, quando comparadas às mães não dependentes, evidenciando um distúrbio no comportamento materno durante o período pós-natal, que corresponde ao período onde as primeiras ligações sociais do animal são formadas e o organis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/01/2012
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7. Comportamento social de cabras em lactação após reagrupamento =Social behaviour in lactating dairy goats after regrouping / Social behaviour in lactating dairy goats after regrouping
Background: Like other farm animals, domestic goats may react adversely to unfamiliar individuals, and aggression can be minimized by avoiding the introduction of new individuals into established groups. In modern dairy herds, regrouping according to age, nutrient requirements, lactation period and milk yield level is a common management practice to enhance
Publicado em: 2011
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8. Organização social e comportamento reprodutivo de uma população de pôneis da raça brasileira / Social organization and reproductive behavior of the population from Brazilian pony breed
Aspectos relacionados com a organização social e seus reflexos no comportamento reprodutivo de garanhões submetidos a coberturas em sistemas de manadas, não têm sido estudados nas populações domesticadas. Este estudo foi conduzido com os seguintes objetivos: identificar as unidades sociais estabelecidas num grupo de garanhões e de éguas; verificar o
Publicado em: 2011
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9. Reproductive strategies and feeding ecology of the aquatic snakes of the tribe Hydropsini (Dipsadidae, Xenodontinae). / Estratégias reprodutivas e ecologia alimentar de serpentes aquáticas da tribo Hydropsini (Dipsadidae, Xenodontinae).
The tribe Hydropsini comprises three genera of snakes. Information on food habits is scarce. However previous data indicate that species feed mainly upon fishes but also eat anurans. The Hydropsini are oviparous or viviparous and the polymorphism is suggested for some species. Other reproductive traits are unknown for most species. On the other hand, the phy
Publicado em: 2010
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10. Influência da idade da fêmea na performance reprodutiva e longevidade de Argyrotaenia sphaleropa (Lepidoptera, Tortricidae) / Female age effect on reproductive performance and longevity of Argyrotaenia sphaleropa (Lepidoptera, Tortricidae)
Argyrotaenia sphaleropa (Meyrick, 1909) é uma praga generalista de fruteiras na América do Sul. A influência da idade da fêmea na performance reprodutiva e longevidade foi investigada sob condições laboratoriais. Fêmeas virgens com 1, 3, 5 e 8 dias de idade foram pareadas com machos virgens com idade entre 0 e 3 dias. Longevidade, sucesso no acasalame
Publicado em: 2010
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11. USO DE PASTAGEM DE GRAMÍNEAS DE ESTAÇÃO QUENTE NA RECRIA DE NOVILHAS DE CORTE / SUMMER GRASS PASTURES UTILIZATION FOR BEEF HEIFERS
The experiment was carried out to evaluate attributes of pastures and relazed to ingestive behavior, the animal performance and reproduction of beef heifers reared from 15 to 18 months and bred at 18/20 months of age. In observations of ingestive behavior were evaluated heifers on Pearl millet (Pennisetum americanum) and alexandergrass (Urochloa plantaginea)
Publicado em: 2009
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12. Influência da recópula de fêmeas selvagens de Ceratitis capitata (Wied., 1824) (Diptera: Tephritidae) na eficiência da técnica do inseto estéril / Influence of wild Ceratitis capitata (Wied., 1824) (Diptera: Tephritidae) females remating on the efficiency of the sterile insect technique
The sterile insect technique (SIT) aim at the induction of sterility in wild females by mating with sterile males released in great amounts in the field. These released males must compete with wild ones being able to attract and mate wild females, fertilize their eggs and avoid remating with a wild male that would lead to fertile eggs and consequently reduce
Publicado em: 2009