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1. Factors affecting postpartum ovarian activity of goats in tropical semi-arid region

Author

NASCIMENTO, T. V. C., LOPES JÚNIOR, E. S., MIRANDA, M. de S., SOUZA, T. T. dos S., SILVA, A. A. de A., LIMA, A. G. V. de O., NOGUEIRA, D. M., CORDEIRO, M. F., MORAES, S. A. de, VOLTOLINI, T. V., THIAGO VINICIUS COSTA NASCIMENTO, Posgraduates program Animal Sciences of Universidade Federal do Maranhão, EDILSON SOARES LOPES JÚNIOR, UNIVASF, MAYARA DE SOUZA MIRANDA, Universidade Federal da Bahia, THAIS THATIANE DOS SANTOS SOUZA, UNIVASF, ANA ARLETE DE AMORIM SILVA, UNIVASF, ANNY GRAYCY VASCONCELOS DE OLIVEIRA LIMA, Universidade Federal do Maranhão, DANIEL MAIA NOGUEIRA, CPATSA, MABEL FREITAS CORDEIRO, UNIVASF, SALETE ALVES DE MORAES, CPATSA, and TADEU VINHAS VOLTOLINI, CPATSA.

Subjects
Anoestro, Cabra, Animal production, Puerpério, Caprino, Pós-Parto, Balanço de energia negativo, Ovário
Abstract

There have been few studies on the use of diets and strategies to reduce the postpartum anoestrus in dairy goats, especially in tropical semi-arid regions. This review discusses the factors influencing the return of postpartum ovarian activity in goats. The duration of puerperal anoestrus in goats directly affects the productivity of the herd. During the postpartum period, goats showed a puerperal anoestrus due to physiological changes in their reproductive tract to achieve a new conception. Anoestrus occurs as a result of tissue renewal in the uterus (uterine involution) which is associated with the return of cyclic ovarian activity, and is influenced by factors such as suckling of the offspring, the period of lactation, social interactions, body condition score (BCS) before and after birth, intensity of negative energy balance (NEB) and stress from adverse climatic conditions for example; the heat. The period of anoestrus can be extended, due to the delay in the cyclic reproductive activity in the puerperium. To minimize the negative effects of postpartum anoestrus on productivity, we recommend a mating season and a plan for the kidding period, as well as a program to increase the BCS during pregnancy so that the animals will have a better BCS at parturition and a nutritional plan for the lactation period. Made available in DSpace on 2021-07-12T17:00:53Z (GMT). No. of bitstreams: 1 Factors-affecting-postpartum-ovarian-activity-of-goats-in-2021.pdf: 406547 bytes, checksum: 031ccc3434cce2baee2601ddffcddd17 (MD5) Previous issue date: 2021

Published
2021

2. Efficacy of three methods used to control staphylococcal mastitis in dairy goats

Author

LEITE, J. A. B., ARAÚJO, R. de M. P., PEIXOTO, R. de M., NOGUEIRA, D. M., COSTA, M. M. da, José Américo Barros Leite, UNIVASF, Renata de Moraes Peixoto Araújo, UFCG, Rodolfo de Moraes Peixoto, ID SERTÃO-PE, DANIEL MAIA NOGUEIRA, CPATSA, and Mateus Matiuzzi da Costa, UNIVAF.

Subjects
Vacina, Mastite estafilocócica, Antibioticoterapia, Doença Animal, Goats, Caprinovinocultura, Cabra Leiteira, Caprino, Imunoterapia, Immunotherapy, Mastitis, Doença, Dairy goats
Abstract

Goat and sheep farming in Brazil relies on an expressive herd, especially in the Northeast region of the country, where small ruminants constitute a relevant economic activity, with milk production being an important source of income in some dry areas of the Northeastern states. However, there are still some sanitary problems in the management of dairy goats, among which mastitis is highlighted, especially that of the subclinical type. Therefore, the aim of this study was to evaluate the use of antibiotics, exclusively or in combination with vaccines, in the control of sub-clinical mastitis in small ruminants. The study was conducted on a rural property located in Santa Maria da Boa Vista-PE. Fifty-three female Saanen dairy goats were allocated into four experimental groups. An antibiotic therapy with a commercial antimicrobial based on cloxacillin was used in group 1. Group 2 received the commercial vaccine indicated for herds with an incidence of Staphylococcus strains and the same antibiotic described for Group 1. Group 3 was evaluated for the exclusive use of vaccination, and Group 4 was the control group. A microbiological examination of the milk was carried out to confirm cases of mastitis. The percentage of udders, infected by coagulase-negative Staphylococcus spp. (CNS) before and after the antibiotic + vaccine treatment was 42.8 and 7.1%, respectively. It was observed that the cloxacillinbased antibiotic could be used alone or in combination with mastitis vaccines to control staphylococcal mastitis in small ruminants. Vaccination alone was not effective in reducing the number of mastitis cases; therefore, a cross reaction against CNS was not observed. Thus, further studies to determine the potential of vaccines to control sub-clinical mastitis in small ruminants are necessary. Made available in DSpace on 2020-09-22T04:36:15Z (GMT). No. of bitstreams: 1 Efficacy-of-three-methods-used-to-control-2020.pdf: 297513 bytes, checksum: 7c2e6305c4089fa5d799ba97d002d55f (MD5) Previous issue date: 2020

Published
2020

3. Características Produtivas e Qualitativas do Estilozantes Campo Grande Submetido ao Estresse Salino

Author

SANTOS, D. B. dos, VOLTOLINI, T. V., SANTOS, R. M., AZEVEDO, D. O, OLIVEIRA, R. G., CHAGAS, E. C. de O., SANTOS, F. M. dos, NOGUEIRA, D. M., DELFRAN BATISTA DOS SANTOS, Instituto Federal Baiano, Campus Senhor do Bonfim, BA, TADEU VINHAS VOLTOLINI, CPATSA, ROBERTA MACHADO SANTOS, UNIVASF, DELKA OLIVEIRA AZEVEDO, Instituto Federal Baiano, Campus Senhor do Bonfim, BA, ROGÉRIO GONÇALVES OLIVEIRA, UNIVASF, ELIO CELESTINO DE OLIVEIRA CHAGAS, Instituto Federal de Educação, Ciência e Tecnologia do Sertão Pernambucano, FLORISVALDO MESQUITA DOS SANTOS, Instituto Federal Baiano, Campus Senhor do Bonfim, BA, and DANIEL MAIA NOGUEIRA, CPATSA.

Subjects
Matéria Orgânica, Animal production, Forragem, Semiárido, Estilosantes Campo Grande, Água Salina, Proteína Bruta, Produção animal
Abstract

O semiárido é caracterizado pela frequência de longas estiagens, tornando assim, os sistemas de produção dessa região bastante vulneráveis. Diante dessa ressalva e da vocação pecuária do semiárido brasileiro, este trabalho teve por objetivo avaliar o efeito da salinidade da água de irrigação sobre as características produtivas e qualitativas do estilosantes Campo Grande cultivado em ambiente protegido no semiárido baiano. O delineamento experimental foi inteiramente casualizado com sete níveis de salinidade da água de irrigação (0,03; 0,55; 1,08; 1,70; 2,62; 3,52 e 5,0 dS m-1) e três repetições. Concluiu-se que a composição bromatológica do estilosantes Campo Grande foi afetada pelo aumento da salinidade de água de irrigação e o aumento da salinidade na água de irrigação reduz a massa fresca de forragem, os teores de matéria orgânica e proteína bruta e aumenta o teor de minerais do estilosantes Campo Grande.

Published
2014
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4. Avaliação Clínica e Parasitológica de Cordeiros Suplementados com Subproduto de Descarte da Dieta da Larva da Mosca das Frutas (C. capitata)

Author

FERRAZ, J. C. B., NOGUEIRA, D. M., SOUSA, P. H. F. de, VOLTOLINI, T. V., CRUZ, T. dos S., OLIVEIRA, J. M., MARTINEZ, E. A., JOSÉ CLÁUDIO BARROS FERRAZ, UNEB, DANIEL MAIA NOGUEIRA, CPATSA, PEDRO HUMBERTO FELIX DE SOUSA, UNEB, TADEU VINHAS VOLTOLINI, CPATSA, TIAGO DOS SANTOS CRUZ, UNEB, JADSON MIRANDA OLIVEIRA, UNEB, and EMANUEL ALMEIDA MARTINEZ, UNEB.

Subjects
Cordeiros, Pastejo rotacionado, Animal production, Anti-Helmíntico, Ovino, Subproduto, OPG, Cartão Famacha, General Medicine, Produção animal
Abstract

Este trabalho objetivou avaliar os aspectos clínicos, monitorados pelo cartão de Famacha®, e parasitológicos, por meio da contagem no número de ovos por grama de fezes (OPG), de cordeiros mantidos em pastagem e suplementados com o subproduto de descarte da larva da mosca das frutas.

Published
2010
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6. Productive performance and parasitological control of kids supplemented with umbu fruits (Spondias tuberosa Arruda)

Author

NASCIMENTO, T. V. C., NOGUEIRA, D. M., CAVALCANTI, N. de B., THIAGO VINICIUS COSTA NASCIMENTO, Universidade Federal da Bahia, Escola de Medicina Veterinária e Zootecnia, Salvador, BA, DANIEL MAIA NOGUEIRA, CPATSA, and NILTON DE BRITO CAVALCANTI, CPATSA.

Subjects
Pastagem, Buffel grass, Capim buffel, Suplementação alimentar, Caprino, Semiárido, Frutos de umbuzeiro, Produção animal
Abstract

Native fruits from Caatinga vegetation can be an important alternative to improve the productive performance of kids in the semi-arid region of Brazil. This work aimed to evaluate the effect of supplementation with Umbuzeiro fruits in natura over the weight gain and anthelmintic control of kids kept in Buffel grass pasture in the semi-arid zone of Pernambuco, Brazil. Twenty-four castrated, crossbreed kids were allocated into three treatments: 1) Control (n = 8) fed exclusively with Buffel grass; 2) Umbu 1x (n = 8) fed with fruits once a week and 3) Umbu 3x (n = 8) fed with fruits for three times a week. The following parameters were evaluated: variation of body weight, faecal egg counts (FEC) and coproculture. Overall, the average consumption of Umbu fruits in natura was 1.48 kg/animal/day, which corresponded to 133.5 g daily dry matter intake (DMI/animal/day). There were no significant difference (P>0.05) for any parameters evaluated. During the experimental period, the overall daily weight gain was variable between 108.75 to 116.70 g/animal/day and the average FEC was 436 eggs. In the present study, the goat kids supplemented with fresh umbu fruits showed a good productive performance, however the supplementation with umbu did not control the infestation of gastrointestinal nematodes in kids.

Published
2016

7. Origin and antimeric distribution of brachial plexus nerves in Alouatta guariba clamitans Cabrera, 1940 (Primates: Atelidae).

Author

Souza-Junior, P., Carvalho, N. C., Dowich, G., Nogueira, D. M. P., Anjos, B. L., Santos-Sousa, C. A., and Abidu-Figueiredo, M.

Subjects
HOWLER monkeys, COMPARATIVE anatomy, NERVOUS system, FORELIMB
Abstract

The Southern brown howler monkey, Alouatta guariba clamitans, is one of the largest Neotropical primates. The objective of this study was to describe the origin and antimeric distribution of brachial plexus nerves in A. g. clamitans and, thereby, to provide information for comparative anatomy and for anatomy applied to loco-regional anaesthetic blocking in primates. For this purpose, a macrodissection of 10 thoracic limbs of corpses that were collected from highways was performed, and the corpses were stored in 10% formaldehyde solution. The brachial plexus was essentially formed from the ventral spinal branches of segments C5 to T1, although in one specimen the contribution of C4 and in another specimen the contribution of T2 was registered. There was a grouping of ventral branches in cranial, medium and caudal trunks, and branches of C5 and C7 were the ones that mostly contributed to the origin of nerves from the plexus. Comparatively, the brachial plexus from A. g. clamitans reflected characteristics that are typical in the primate order, but also of mammal species that require versatility and precision in movements of the thoracic limbs. On the basis of that similarity, it is proposed that anatomic landmarks for anaesthetic block techniques used in other primate species may be successfully applied to A. g. clamitans. [ABSTRACT FROM AUTHOR]

Published
2018
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10. Consumo de água e desempenho produtivo de caprinos recebendo rações contendo diferentes teores de caroço de algodão em substituição a silagem de maniçoba

Author

LOIOLA FILHO, J. B., SANTOS, B. R. C. dos, MANERA, D. B., NOGUEIRA, D. M., VOLTOLINI, T. V., JOÃO BOSCO LOIOLA FILHO, BETINA RAQUEL CUNHA DOS SANTOS, DANIEL BONFIM MANERA, DANIEL MAIA NOGUEIRA, CPATSA, and TADEU VINHAS VOLTOLINI, CPATSA.

Subjects
Goat, Silagem, Gossypium Hirsutum, Alimentação, Caprino, Cabrito, Confinamento, Caroço de algodão
Published
2012

11. Reproductive and productive performance of crossbred goats submitted to three matings in two years under an agro-ecological production system in the Semi-Arid region of Brazil

Author

NOGUEIRA, D. M., PAKER, A., VOLTOLINI, T. V., MORAES, S. A. de, MOREIRA, J. N., ARAUJO, G. G. L. de, GUIMARÃES FILHO, C., DANIEL MAIA NOGUEIRA, CPATSA, TADEU VINHAS VOLTOLINI, CPATSA, A. PAKER, CLOVIS GUIMARÃES FILHO, CPATSA., GHERMAN GARCIA LEAL DE ARAUJO, CPATSA, JOSE NILTON MOREIRA, CPATSA, and SALETE ALVES DE MORAES, CPATSA

Subjects
Goat, Fertilidade, Reprodução, Nordeste, Goats, Cabras, Época de acasalamento, Caprinocultura, Carne
Abstract

This study aimed to measure the productive and reproductive performance of does managed to have three mating seas ons in two consecutive years, under an agro-ecological system in the semi-arid region of Brazil. Made available in DSpace on 2012-10-16T01:02:35Z (GMT). No. of bitstreams: 1 Tadeu2012.pdf: 355516 bytes, checksum: 8aa1b5099fe9602bdcb353b07c0c460c (MD5) Previous issue date: 2012-10-10

Published
2012

12. Manejo reprodutivo e alimentar para o fortalecimento da ovinocultura de corte em associação de produtores no Semiárido nordestino, no Brasil

Author

NOGUEIRA, D. M., AZEVEDO, S. G. de, VOLTOLINI, T. V., MORAES, S. A. de, LOIOLA FILHO, J. B., NASCIMENTO, T. V. C., DANIEL MAIA NOGUEIRA, CPATSA, SERGIO GUILHERME DE AZEVEDO, CPATSA, TADEU VINHAS VOLTOLINI, CPATSA, SALETE ALVES DE MORAES, CPATSA, JOÃO BOSCO LOIOLA FILHO, and THIAGO VINICIUS COSTA NASCIMENTO.

Subjects
Fertilidade, Ovino, Pesquisa participativa, Pecuária de corte, Agricultura Familiar, Estação de monta, Family farming, Ovis Aries, Sheep
Abstract

O trabalho apresenta resultados de transferência de tecnologias do manejo reprodutivo de ovinos de corte na Associação dos Produtores do Sítio Pimenta, em Dormentes, PE. Utilizaram-se 92 ovelhas locais, mestiças Santa Inês-Bergamácia, em três experimentos, tendo-se avaliado: no Experimento I, dois níveis de Nutrientes Digestíveis Totais (NDT); no Experimento II, três níveis de ureia no suplemento concentrado antes da estação de monta. Foram determinados ganho de peso total (GPT), ganho médio diário (GMD), taxa de parição e prolificidade. No Experimento III, foram determinados período de serviço pós-parto e intervalo entre partos (IEP). No Experimento I, foram obtidos GPTs médios de 3,5 kg, GMD de 63,8 g/dia, taxa de parição de 86,9% e prolificidade de 1,1. No Experimento II, foram obtidos GPTs médios de 0,56 kg, GMD de 13,4 g/dia, taxa de parição de 77,7% e prolificidade de 1,1. No Experimento III, o período de serviço médio foi de 57,8 dias e o IEP, de 209,8 dias. Os suplementos concentrados mostraram-se adequados para ganho de peso e a manutenção da atividade reprodutiva das ovelhas durante a época seca. O período de serviço e o IEP das ovelhas no início do período chuvoso foram curtos, demonstrando alta eficiência reprodutiva. Os produtores participaram ativamente das atividades e passaram a aplicar as técnicas utilizadas. Made available in DSpace on 2012-10-02T01:02:10Z (GMT). No. of bitstreams: 1 Daniel2012.pdf: 782323 bytes, checksum: ae6c1d0dd604b01d1f26a47e0194b8e1 (MD5) Previous issue date: 2012-07-17

Published
2011

15. Fontes proteicas no suplemento concentrado de ovinos em pastejo

Author

VOLTOLINI, T. V., MOREIRA, J. N., NOGUEIRA, D. M., PEREIRA, L. G. R., AZEVEDO, S. R. B., LINS, P. R. C., TADEU VINHAS VOLTOLINI, CPATSA, DANIEL MAIA NOGUEIRA, CPATSA, LUIZ GUSTAVO RIBEIRO PEREIRA, CPATSA., and JOSE NILTON MOREIRA, CPATSA

Subjects
Pastagem, Torta de algodão, Ovino, Suplementação alimentar, Pastagem irrigada, Uréia, Capim Tifton 85, Cynodon Dactylon, Farelo de soja
Abstract

O presente trabalho teve por objetivo avaliar diferentes fontes proteicas no suplemento concentrado de ovinos mantidos em pastagens irrigadas de Tifton 85. Made available in DSpace on 2011-04-09T20:49:26Z (GMT). No. of bitstreams: 1 OPB2310.pdf: 144605 bytes, checksum: 0046f2bb8257ac2a06b576aadd9c9ac8 (MD5) Previous issue date: 2009-05-26

Published
2009

16. Cabras leiteiras em condomínio: renda para o produtor

Author

NOGUEIRA, D. M., CAVALCANTI, F. N. de M., and DANIEL MAIA NOGUEIRA, CPATSA.

Subjects
Pastagem, Animal production, Produtor, Cabra Leiteira, Caprino, Renda, Produção animal
Abstract

Produtores de Santa Maria da Boa Vista; Implantação do condomínio de cabras leiteiras; atividades propostas pelo Projeto Cabras.

Published
2007

17. Toxemia da gestação: relato de um caso

Author

NOGUEIRA, D. M., CHRISTILIS, M., and DANIEL MAIA NOGUEIRA, CPATSA.

Subjects
Animal production, Gestação, Ovelha, Toxemia, Doença, Produçao animal
Abstract

Relato de caso; descrição do distúrbio; explicação bioquímica; fatores predisponentes; sinais clínicos e diagnóstico; tratamento. Made available in DSpace on 2015-05-20T05:23:28Z (GMT). No. of bitstreams: 1 Daniel.pdf: 3924109 bytes, checksum: 674aeaaaaddf76f7eeb09573befbf4d7 (MD5) Previous issue date: 2007-04-26

Published
2007

18. Avaliação de plantas medicinais no controle de nematódeos gastrintestinais de caprinos criados em sistema de base agroecológica

Author

NOGUEIRA, D. M., MOREIRA, J. N., CARLOS, J. F., Daniel Maia Nogueira, CPATSA, JOSE NILTON MOREIRA, CPATSA, and Jacineide Feitosa Carlos, Universidade do Grande ABC/São Paulo.

Subjects
Controle, Planta Medicinal, Animal production, Base agroecologógica, Nematodeo gastrintestinal, Caprino, Produção animal
Abstract

Este trabalho objetivou avaliar a eficácia de plantas medicinais no controle de nematódeos gastrintestinais. Foram utilizados 36 caprinos distribuídos em seis grupos de seis animais, nos seguintes tratamentos: T1 água (50 mL/animal); T2 closantel (10 mg/kg); T3 Curcubita sp. (3 g/kg); T4 Operculina sp. (8 g/kg); T5 Azadirachta indica (1 g/kg) e T6 Azadirachta indica (3 g/kg). As dosagens foram administradas após 12 horas de jejum, sob a forma de suco, por via oral. A eficácia dos tratamentos foi obtida pela contagem do OPG antes e sete dias após os tratamentos. A média do número de OPG antes dos tratamentos em todas as avaliações foi de 2.500 ovos. Apesar da discreta redução do OPG causada pelo T3 (41,0%) e T4 (34,9%) após a primeira administração, o OPG ainda permaneceu bastante elevado. Nos tratamentos T1, T5 e T6 foi observado aumento do OPG. A eficiência do closantel (T2) foi de 75,9%. Portanto, as dosagens utilizadas não apresentaram eficácia na redução do OPG.

Published
2006

19. O cabrito do Vale do São Francisco: valorizando o bioma caatinga

Author

GUIMARÃES FILHO, C., NOGUEIRA, D. M., CLOVIS GUIMARÃES FILHO, CPATSA, and DANIEL MAIA NOGUEIRA, CPATSA.

Subjects
Animal production, Qualidade, Identificação geográfica, Caprino, Cabrito do Vale do São Francisco, Produção animal, Certificação
Abstract

A certificação de indicação geográfica; Caracterização do produto e de sua área de produção; O sistema de produção proposto; O controle da qualidade dos produtos; A estratégia de implantação; O modelo de integração. Made available in DSpace on 2015-05-09T05:56:25Z (GMT). No. of bitstreams: 1 Clovis.pdf: 1127470 bytes, checksum: 78b5560f00c24084e59238ccbe39b65b (MD5) Previous issue date: 2007-01-05

Published
2006

20. Origin and antimeric distribution of brachial plexus nerves in Alouatta guariba clamitansCabrera, 1940 (Primates: Atelidae)

Author

Souza-Junior, P., Carvalho, N. C., Dowich, G., Nogueira, D. M. P., Anjos, B. L., Santos-Sousa, C. A., and Abidu-Figueiredo, M.

Abstract

AbstractThe Southern brown howler monkey, Alouatta guariba clamitans, is one of the largest Neotropical primates. The objective of this study was to describe the origin and antimeric distribution of brachial plexus nerves in A. g. clamitansand, thereby, to provide information for comparative anatomy and for anatomy applied to loco-regional anaesthetic blocking in primates. For this purpose, a macrodissection of 10 thoracic limbs of corpses that were collected from highways was performed, and the corpses were stored in 10% formaldehyde solution. The brachial plexus was essentially formed from the ventral spinal branches of segments C5 to T1, although in one specimen the contribution of C4 and in another specimen the contribution of T2 was registered. There was a grouping of ventral branches in cranial, medium and caudal trunks, and branches of C5 and C7 were the ones that mostly contributed to the origin of nerves from the plexus. Comparatively, the brachial plexus from A. g. clamitansreflected characteristics that are typical in the primate order, but also of mammal species that require versatility and precision in movements of the thoracic limbs. On the basis of that similarity, it is proposed that anatomic landmarks for anaesthetic block techniques used in other primate species may be successfully applied to A. g. clamitans.

Published
2018
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21. Anestro pós-parto em caprinos: uma revisão

Author

NOGUEIRA, D. M., FREITAS, V. J. de F., DANIEL MAIA NOGUEIRA, CPATSA, and VICENTE JOSÉ DE FIGUEIREDO FREITAS, UFC.

Subjects
Reprodução, Animal production, Anestro pós-parto, Goat, Caprino, Produção animal, Post-partum anoestrus
Abstract

Esta revisão apresenta os eventos hormonais durante o anestro pós-parto em caprinos, bem como os fatores que influenciam a sua duração em animais explorados em clima temperado e tropical. Made available in DSpace on 2015-07-14T05:58:33Z (GMT). No. of bitstreams: 1 Daniel2000.pdf: 5396363 bytes, checksum: 218d9bae4efc72ddad05c16abed2adcc (MD5) Previous issue date: 1995-07-07

Published
1995

24. Quercetin influences in vitro maturation, apoptosis and metabolically active mitochondria of goat oocytes.

Author

Silva AAA, Silva MNP, Figueiredo LBF, Gonçalves JD, Silva MJS, Loiola MLG, Bastos BDM, Oliveira RA, Ribeiro LGM, Barberino RS, Gouveia BB, Monte APO, Nogueira DM, Cordeiro MF, Matos MHT, and Lopes Júnior ES

Subjects
Animals, Apoptosis drug effects, Cells, Cultured, Chromatin drug effects, Chromatin ultrastructure, Cumulus Cells, DNA Fragmentation drug effects, Glutathione metabolism, Goats, Mitochondria metabolism, Quercetin administration & dosage, Reactive Oxygen Species metabolism, In Vitro Oocyte Maturation Techniques methods, Mitochondria drug effects, Oocytes drug effects, Oocytes physiology, Quercetin pharmacology
Abstract

SummaryThe present study aimed to investigate the effect of quercetin as an alternative antioxidant to cysteamine on in vitro maturation. Oocytes were collected from goat ovaries, destined for in vitro maturation and distributed into three groups: CIS group, oocytes were immersed in MIV base medium; in Groups Q4 and Q8, oocytes were immersed in the medium of the CIS group, adding 4 μM or 8 μM of quercetin, respectively, and cultured for 24 h at 38.5°C with 5% CO2. The CIS and Q4 groups presented the same percentage of expanded cumulus cells, but the per cent in the Q8 group was significantly lower than that of the other groups (P<0.05). The oocyte retraction rate in the Q8 group was higher (P<0.05) than in the CIS and Q4 groups. Treatment with 8 μM of quercetin presented a lower proportion of expanded oocytes than the CIS group and 4 μM of quercetin (P<0.05). The percentage of MII oocytes was higher in the Q4 group than in the CIS group (P<0.05), but the percentages in the CIS and Q8 groups were similar. The rate of apoptosis was higher in the CIS group than in the other groups (P<0.05). In addition, oocytes matured with 4 μM quercetin showed higher mitochondrial activity than matured oocytes in the CIS and Q8 groups (P<0.05). In conclusion, 4 μM of quercetin can be used as an alternative to cysteamine in the in vitro maturation of goat oocytes.

Published
2018
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25. Effect of hormonal synchronisation and/or short-term supplementation with maize on follicular dynamics and hormone profiles in goats during the non-breeding season.

Author

Nogueira DM, Cavalieri J, Fitzpatrick LA, Gummow B, Blache D, and Parker AJ

Subjects
Animal Nutritional Physiological Phenomena, Animals, Female, Progesterone administration & dosage, Progesterone pharmacology, Animal Feed, Diet veterinary, Estrus Synchronization drug effects, Goats physiology, Ovarian Follicle drug effects, Zea mays
Abstract

This study aimed to evaluate the reproductive response of anoestrous goats that were either hormonally treated and/or supplemented with maize for 9days to determine which treatment combination was the most effective in enhancing follicular development and ovulation rate, and whether these responses were associated with increases in metabolic hormones. The experiment was carried out using 28 does, using a 2×2 factorial design with seven does in each group to test the effect of synchronisation of oestrus, supplementation with maize and their interactions. Synchronisation of oestrous cycles (P<0.001) but not supplementation with maize or the interaction between the two (P>0.05) increased the number of codominant follicles, the diameter of the largest follicle on Day 9 and growth rate of follicles during the period of supplementation. Compared with non-supplemented animals, supplementation with maize increased the total number of follicles observed between Days 7 and 9 (P=0.039). In addition, nutritional supplementation with maize in combination with synchronisation of oestrus increased the ovulation rate by 43% (P=0.074). Interactions between time and supplementation with maize showed that plasma concentrations of insulin, leptin and IGF-1 were greater in does supplemented with maize compared with non-supplemented does (P<0.001). The findings show that hormonal synchronisation had the most influence on modifying follicular development and ovulation in anoestrous goats. Supplementation with maize increased the concentrations of insulin, leptin and IGF-1, which could potentially modify the sensitivity of follicles to gonadotrophins and reduce rates of atresia., (Copyright © 2016 Elsevier B.V. All rights reserved.)

Published
2016
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26. [Determination of total protein levels in the liver and the heart of normal and ytterbium chloride treated female rabbits].

Author

Rodgrigues NL, Nogueira DM, de Medina TL, and Medina HS

Subjects
Animals, Female, Liver metabolism, Myocardium metabolism, Rabbits, Ytterbium metabolism, Liver analysis, Myocardium analysis, Proteins analysis
Abstract

The authors study the effects of ytterbium chloride on the levels of total liver and heart proteins of rabbits. The results showed that in the rabbits treated by yterbium chloride, the total proteins founded in treated animals was lower than those observed in normal ones.

Published
1975

27. [Methods of studing intestinal absorption in vivo and in vitro].

Author

de Medina TL, Rodrigues NL, Nogueira DM, and Medina HS

Subjects
Animals, In Vitro Techniques, Intestinal Absorption drug effects
Abstract

The authors describe a simple method for the perfusion of everted and in situ intestine. The technique offers the same advantages of other methods and allows the measurement of the uptake of substances from the intestinal lumen and estimates the absorption by the intestinal wall. The technique affords the biochemical studies of the action and effects of drugs on the mechanism of the intestinal absorption.

Published
1975

28. [Effects of aflatoxins B1 on glucose-6-phosphatase activity in kidney and liver of rats (Rattus rattus norvegicus)].

Author

Barros SB, Rossi AR, and Nogueira DM

Subjects
Aflatoxins isolation & purification, Animals, Blood Glucose analysis, Blood Proteins, Glycogen blood, Male, Rats, Aflatoxins pharmacology, Glucose-6-Phosphatase metabolism, Kidney enzymology, Liver enzymology
Abstract

The authors observed the influence of the B1 aflatoxin over rat liver and kidneys glucose-6-phosphatase activity. Animals aged 30 and 60 days received B1 aflatoxin in oil, 1 mcg/g and 5 mcg/g of body weight. The parameters were observed 6, 24 and 48 hours after the micotoxin administration. There was significant decrease of glucemia in the 30 days animals. In the 60 days animals the results suggested possible increase in the liver glucose-6-phosphatase and marked decrease in glycogen.

Published
1976

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