Consulta: creatorFacets:"Brandão,Felipe Zandonadi"
Registros recuperados: 9
Data/hora: 11/06/2024 12:28:16

Effects of GnRH administration on ovulation and fertility in ewes subjected to estrous synchronization
Provedor de dados: 96
Autores: Cavalcanti,Amanda dos Santos; Brandão,Felipe Zandonadi; Nogueira,Luiz Altamiro Garcia; Fonseca,Jeferson Ferreira da.
The objective of this study was to verify the effects of GnRH on ovulation and pregnancy of ewes subjected to a short-term synchronization of estrus. Santa Inês and crossbred Santa Inês/Dorper ewes received 60 mg MAP sponges during 6 days plus 300 IU eCG and 30 µg d-cloprostenol 24 h prior to sponge withdrawal (SW). Ewes were assigned to receive 0.9% NaCl solution (Tcontrol; n = 32) or 25 µg GnRH (licerelin, T GnRH; n = 34) 24 hours after SW. Each group was assigned to intrauterine insemination by laparoscopy (n = 25) or to natural mating (n = 41). Artificial insemination was performed with a single dose of fresh semen. For controlled mating, females were exposed to males 12, 24, 36 and 48 hours after SW. Ten females per treatment were subjected to...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Artificial insemination; Intravaginal progesterone insert; Ovulation; Pregnancy rate; Sheep.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000600014

Semen cryopreservation protocols of Mangalarga Marchador stallions
Provedor de dados: 96
Autores: Candeias,Marcela Leite; Alvarenga,Marco Antonio; Carmo,Márcio Teoro do; Ferreira,Heder Nunes; Maior,Mônica Russo Souto; Torres Filho,Rodolpho de Almeida; Rodrigues,André Luís Rios; Brandão,Felipe Zandonadi.
The effect of the utilization of three semen protocols (Inra 82®, Merck Gema and Botu-crio®) and two filling techniques (0.25 and 0.50 mL straws) in Mangalarga Marchador stallions were studied in this experiment. Sperm parameters were assessed during processing and post-freezing. No interactions between the protocols and type of filling were observed, so they were assessed separately. Sperm parameters were not altered when the extender was added to the centrifugation; however, there was reduction of motility and strength when freezing extenders were added. The Botu-crio® protocol preserved the parameters of total and progressive sperm motility, smoothed path velocity (µm/s), straight line velocity (µm/s), track velocity (µm/s) and the average and fast...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ejaculated; Equine; Extender; Straw.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900004

Short, medium or long-term hormonal treatments for induction of synchronized estrus and ovulation in Saanen goats during the nonbreeding season
Provedor de dados: 96
Autores: Pietroski,Ana Carolina Cunha Araujo; Brandão,Felipe Zandonadi; Souza,Joanna Maria Gonçalves de; Fonseca,Jeferson Ferreira da.
The objective of this study was to compare the effect of hormonal treatment duration through the use of intravaginal sponges impregnated with 60 mg MAP for 6 (G6; n = 10), 9 (G9; n = 10) or 12 (G12; n = 10) days. All nulliparous (n = 15) and lactating (n = 15) Saanen goats received 37.5 µg d-cloprostenol and 200 IU eCG 24 hours before sponge removal during the nonbreeding season. After sponge removal, estrus was monitored twice a day (06h00 and 18h00) by the use of fertile bucks. Transrectal ovarian ultrasonography was performed after device removal until ovulation detection. All goats were bred by artificial insemination (AI) or natural breeding (NB). All females received 250 IU hCG 5 d after AI or NB. No difference was observed among groups G6, G9 and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Estrous induction; Goat; Ultrasonography.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000300004

Influência da freqüência de ordenhas diárias sobre a eficiência produtiva de vacas mestiças Holandês-Zebu e o desempenho dos seus bezerros
Provedor de dados: 96
Autores: Ruas,José Reinaldo Mendes; Brandão,Felipe Zandonadi; Silva Filho,José Monteiro da; Borges,Álan Maia; Carvalho,Bruno Campos de; Menezes,Arismar de Castro; Amaral,Reginaldo; Marcatti Neto,Alberto.
Verificou-se a influência do número de ordenhas diárias sobre a produção de leite, a duração da lactação, a incidência de mastite e o desempenho dos bezerros. Foram utilizadas 63 vacas primíparas e multíparas mestiças (Holandês-Zebu) com boa condição corporal ao parto, distribuídas ao acaso, por meio de sorteio, em três grupos experimentais com número igual de repetições, representadas pelo número de ordenhas diárias: vacas ordenhadas uma vez por dia; vacas ordenhadas duas vezes ao dia; vacas ordenhadas alternadamente a cada 14 dias, uma ou duas vezes ao dia. A saúde da glândula mamária não foi influenciada pela diminuição do número de ordenhas diárias. Não houve efeito do número de ordenhas sobre o desempenho dos bezerros, mesmo daqueles submetidos a uma...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bos taurus x Bos indicus; Ganho de peso; Número de ordenhas; Peso do bezerro; Produção de leite.
Ano: 2006
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982006000200013

Use of long-acting progesterone to acyclic embryo recipient mares
Provedor de dados: 96
Autores: Greco,Gabriel Maksoud; Burlamaqui,Fábio Luis Gonçalves; Pinna,Aline Emerim; Queiroz,Fernando José Rohen de; Cunha,Maria Pia dos Santos; Brandão,Felipe Zandonadi.
The objective of this study was to evaluate the efficiency of cyclic and acyclic progesterone-treated recipient mares in a commercial embryo transfer program. Acyclic recipients were treated with decreasing amounts of estradiol cypionate (ECP® - Pfizer Saúde Animal, São Paulo, Brazil), followed by 1500 mg of a sustained-release progesterone injection (P4LA150® - Laboratórios B.E.T., Rio de Janeiro, Brazil). Out of all 1506 embryo recovery attempts performed, 59.36% were positive (894/1506). Pregnancy rates of cyclic and acyclic mares were, respectively, 44.12% (319/723) and 57.68% (139/241) - higher in acyclic recipients under progesterone treatment. Embryo loss was similar between groups (9.72% 31/319 vs. 11.51% - 16/139). When fertility data on acyclic...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Embryo loss; Embryo transfer; Mare; Pregnancy.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300019

Luteal dynamics in goats: morphological and endocrine features
Provedor de dados: 96
Autores: Arashiro,Eduardo Kenji Nunes; Viana,João Henrique Moreira; Fonseca,Jeferson Ferreira da; Camargo,Luiz Sérgio de Almeida; Fernandes,Carlos Antônio de Carvalho; Brandão,Felipe Zandonadi.
The aim of this study was to establish the morphologic and endocrine characteristics of luteal dynamics in goats. It was used Toggenburg female goats that showed natural estrus in a 48-hour interval. After estrus, ultrasonographic evaluations of the ovaries were daily performed during 21 days using a portable device (5MHz probe). Blood sample was collected for plasma progresterone (P4) determination. Corpora lutea were detected for the first time on day 5 and progressively increased in size until D9 (1.26 ± 0.08 cm²), with no variation on subsequent days. In females with one ovulation, the first visualization of the corpora lutea was earlier than in those with multiple ovulation (4.54 ± 0.18 vs 5.74 ± 0.25 days). At the moment of the first visualization,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Corpus luteum; Goats; Progesterone; Ultrasonography.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982010000900011

Efeito do intervalo das duas últimas inseminações sobre a fertilidade de éguas inseminadas com sêmen fresco diluído
Provedor de dados: 96
Autores: Saturnino,Helton Mattana; Silva Filho,José Monteiro da; Silva,Manoel Dantas; Palhares,Maristela Silveira; Brandão,Felipe Zandonadi; Oliveira,Henrique Nunes.
Sessenta e duas fêmeas eqüinas foram distribuídas ao acaso em dois grupos experimentais de acordo com o intervalo da penúltima à última inseminação artificial de cada ciclo (48h ou 72h). As éguas foram rufiadas e inseminadas às segundas, quartas e sextas-feiras, a partir do momento em que apresentavam um folículo de 3,0 a 3,5 cm de diâmetro, com sêmen de apenas um garanhão de fertilidade comprovada, diluído para um volume inseminante de 10 mL com diluidor de mínima contaminação. As taxas de concepção referentes ao primeiro ciclo, para os intervalos de 48h e 72h foram de 66,67% (24/36) e 65,22% (15/23), respectivamente, sendo as taxas de concepção/ciclo de 53,45% (31/58) e 56,76% (21/37), na mesma ordem anterior. Com base nos resultados obtidos,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Égua; Inseminação artificial; Intervalo de inseminações.
Ano: 2002
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982002000500010

Qualitative and quantitative analysis of bacteria from vaginitis associated with intravaginal implants in ewes following estrus synchronization
Provedor de dados: 65
Autores: Vasconcelos,Carlos Otávio de Paula; Brandão,Felipe Zandonadi; Martins,Gabriel; Penna,Bruno; Souza-Fabjan,Joanna Maria Gonçalves de; Lilenbaum,Walter.
ABSTRACT: This study evaluated the presence of vaginitis and the bacterial load associated with different intravaginal implants in ewes. Twenty-four Dorper and crossbred ewes were allocated into three groups and received intravaginal implant containing 0.3g progesterone (CIDR(r)), 60mg MAP or sponges without progesterone (CONTROL) for six days. Then, CIDR and MAP treated-ewes received 12.5mg dinoprost and 300IU eCG. Vaginal mucus samples were collected at four times: before device insertion, at the day of its removal, 24 and 48 hours after. The samples were cultured and the colonies were counted (CFU/mL) and identified. The results obtained from the counting of CFU mL-1 were submitted to Kruskal-Wallis H test, with P&lt;0.05 being considered significant....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Intravaginal device; Microorganism; Sheep; Vaginal infection.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400632

Repetition of estrus is the most frequent reproductive problem after breeding in dairy cattle from Rio de Janeiro, Brazil
Provedor de dados: 65
Autores: Arashiro,Eduardo Kenji Nunes; Libonati,Hugo; Santos,Gustavo Bervian dos; Nogueira,Luiz Altamiro Garcia; Souza,Guilherme Nunes de; Lilenbaum,Walter; Brandão,Felipe Zandonadi.
ABSTRACT: Reproductive efficiency is one of the key elements for any milk production system to be successful. In this regard, reproductive management must be planned properly and the identification of the main reproductive disorders that affect the herd is primordial for decision-making. The aim of the present study was to identify the main reproductive problems that affect dairy herds on Rio de Janeiro (RJ), Brazil. Data regarding breed, age, reproductive disorder occurrence, and breeding system were individually collected from dairy cows raised at 25 farms located at RJ. The occurrence of reproductive disorders was reported in 37% of the studied animals. Estrous repetition (76.2%) and abortion (15.6%) were the most frequent reproductive problems...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Dairy cattle; Reproductive disorders; Repeat breeding.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782017000700701