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| Registros recuperados: 42 | |
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| DIAS, F. R. T.; NOGUEIRA, E.; SILVA, J. C. B.. |
| A bovinocultura de corte é uma das atividades humanas mais relevantes para a economia do Pantanal e do Brasil. O rebanho nacional em 2018 estava em torno de 213,5 milhões de cabeças (IBGE, 2018). Oliveira et al. (2016) estimaram a população de bovinos na planície pantaneira em 3,85 milhões de animais, sendo 70% desta (2,7 milhões de cabeças) no estado de Mato Grosso do Sul e 30% (1,15 milhões de cabeças) no estado de Mato Grosso. A Embrapa Pantanal vem desenvolvendo tecnologias para a ovinocultura de corte no Pantanal desde seu estabelecimento em 1975, muitas vezes em parceria com a Embrapa Gado de Corte. O arranjo de 'projetos+Precoce' estava entre as iniciativas desta parceria, o qual visou o desenvolvimento de tecnologias e sistemas de produção do... |
| Tipo: Documentos (INFOTECA-E) |
Palavras-chave: Impacto Ambiental; Inseminação Artificial.; Pecuária; Bovino; Livestock production; Environmental impact; Artificial insemination; Beef cattle.. |
| Ano: 2019 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1116261 |
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| Gardes, Lionel; Buchet, Vincent; Villanove, Philippe; Fauvel, Christian. |
| Artificial insemination mastery in red drum, Sciaenops ocellatus, requires a first experimental step wOOng at getting basic biological data. Regarding males, a relation between optical density of the solution (OD) measured by spectrophotometry and sperm concentration (SC) has been established : OD O,161*SC + 0,119. Mean sperm concentration measured is 4,36.10 10 spz.mL-1. This study shows an influence of the solution of dilution on spermatozoa motility and its evolution during short term preservation. As far as females are concemed, the follow-up of final maturation through the observation of samples taken during reguIar strippings, seems to he a good technique to limit overripening and spontaneous liheration of ovules. Some artificial insemination trials... |
| Tipo: Text |
Palavras-chave: Fécondation artificielle; Concentration spermatique; Motilité du sperme; Ovogenèse; Ovulation; Sur maturation; Ombrine; Sciaenops ocellatus.; Artificial insemination; Sperm concentration; Sperm motility; Oogenesis; Ovulation; Overripening; Red drum.; Sciaenops ocella/us. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00366/47755/47801.pdf |
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| Fukui, Yutaka; Yamamura, Kunio; Matsunaga, Nobuyoshi; Miyamoto, Akio; 福井, 豊; 宮本, 明夫. |
| The present study aimed to examine the possibility that bovine somatotropin (BST) treatment after artificial insemination (AI) may improve the fertility by the stimulation of corpus luteum (CL) function in seasonally anestrous ewes. The experiment was conducted at the Tawa Field Station, Shibecha-cho in Hokkaido, Japan, during the non-breeding season (May, 1995). Eighty-nine mature (2 to 3 years old) Suffolk and Suffolk-crossed ewes were treated with controlled internal drug release devices containing 0.3 g progesterone (CIDR-G) for 12 days. Ewes were injected intramuscularly with 500 IU PMSG the day before CIDR removal. Eighty-seven ewes were assigned to an insemination of frozen semen on a fixed-time basis (42 to 50 h) after removal of CIDR. On the 11th... |
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Palavras-chave: Bovine somatotropin; Artificial insemination; Progesterone; Conception rate; Ewes. |
| Ano: 2000 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2971 |
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| FUKUI, Yutaka; KOHNO, Hirohide; OKABE, Kentaro; KATSUKI, Sara; YOSHIZAWA, Masahiro; TOGARI, Tetsuro; WATANABE, Hiroyuki; 福井, 豊. |
| In this study, two successive field trials were conducted during the non-breeding season to investigate various factors affecting on fertility of Suffolk ewes after intrauterine insemination with frozen-thawed semen. In the first year (Experiment 1), three sperm numbers per insemination dose (0.25, 0.5 and 1 million sperm) and five sheep farms were used, and in the second year (Experiment 2), parity, age, body weight, body condition score (BCS) and postpartum days were investigated to compare pregnancy and lambing rates. High pregnancy and lambing rates (70.6 and 70.6%, respectively) were obtained with 0.25 million sperm per dose. There were no significant differences in the pregnancy and lambing rates among the five farms, but there was a tendency for one... |
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Palavras-chave: Artificial insemination; Fertility; Frozen semen; Sheep. |
| Ano: 2010 |
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/2817 |
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| Fernandes,Carlos Antônio de Carvalho; Miyauchi,Tatimara Maria; Figueiredo,Ana Cristina Silva de; Palhão,Miller Pereira; Varago,Fabiana Cristina; Nogueira,Ester Siqueira Caixeta; Neves,Jairo Pereira; Miyauchi,Tochimara Aparecida. |
| The objective of this work was to evaluate the effects of hormonal synchronization protocols, associated or not with follicular development stimulation, on the recovery of oocytes and on in vitro production of Bos indicus and B. taurus embryos, in different seasons. Ultrasound-guided follicular aspirations (n=237) were performed without pre-treatment (G1, control group) and after follicular wave synchronization (G2), or after follicular wave synchronization and follicle growth induction (G3). Bos indicus produced more oocytes and embryos than B. taurus (18.7±0.9 vs. 11.9±0.6 oocytes and 4.8±0.3 vs. 2.1±0.2 embryos). On average, oocyte and embryo yields were higher in G3 than in G2, and both were greater than in G1, which lead to a higher conversion of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bos indicus; Bos taurus; Artificial insemination; Follicle growth induction; Follicular wave synchronization; FSH stimulation. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2014001000813 |
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| Parcell, Joseph L.; Schaefer, Daniel; Patterson, David J.; John, Mike; Kerley, Monty S.; Haden, Kent. |
| Synchronized artificial insemination was used to inseminate cows using different types of sire genetics, including low-accuracy, calving-ease, and high-accuracy. These three calf sire groups were compared to calves born to cows bred using natural service. We found substantial production efficiency grains, carcass merit improvement, and economic value to calves born to cows following a synchronized artificial insemination program with high-accuracy semen included. The economic advantage to the high-accuracy calf sire group was computed to be in the neighborhood of $40 to $80/head, relative to the natural service calf sire group. |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Artificial insemination; Beef; Cow; Carcass; Feed-out; Genetics; Pre-conditioning; Sire synchronization.; Agricultural Finance. |
| Ano: 2008 |
URL: http://purl.umn.edu/37618 |
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| Hogeland, Julie A.. |
| The artificial insemination industry provides breeding products and services for both dairy and beef cattle. Two-thirds of the industry is organized as producer-owned cooperatives. The industry has been so highly successful in meeting the needs of producers for a high-quality reliable product that the United States is the world's leading producer and exporter of bull semen. Yet, more bulls (and consequently more cooperatives) are available than are technically needed for genetic variation and breeding requirements. The result of such product proliferation is higher semen prices and excessive costs for inventory, distribution, and marketing. To maintain their prominent role in the industry, the 22 cooperatives need to consolidate to streamline the... |
| Tipo: Report |
Palavras-chave: Cooperatives; Artificial insemination; Semen; Dairy cattle; Breeding; Agribusiness. |
| Ano: 1990 |
URL: http://purl.umn.edu/52019 |
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| Dargatz, David. |
| As part of the National Animal Health Monitoring System (NAHMS ), USDA:APHIS:Veterinary Services conducted a national study of beef production, the Beef Cow/Calf Health and Productivity Audit (CHAPA). This study was designed to provide both participants and the industry with information on cow/calf health, productivity, and management practices. Data for Part 1: Beef Cow/Calf Herd Management Practices in the United States, were collected from beef producers September 29 through October 9, 1992. The National Agricultural Statistics Service (NASS) collaborated with VS to select a statistically designed producer sample that represented all U.S. cow/calf operations in the 48 continental United States. Eighty-one percent of operations had commercial cattle... |
| Tipo: Report |
Palavras-chave: NAHMS; Epidemiology; Beef cattle; Calves breeding; Artificial insemination; Mortality; Branding; Injections; Castration; Weaning; Livestock Production/Industries. |
| Ano: 1993 |
URL: http://purl.umn.edu/32740 |
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| Pugliesi,Guilherme; Carvalho,Giovanni Ribeiro de; Rates,Daniel Macêdo; Ker,Pedro Gama; Matta,Manuela Pereira da; Oliveira,Renan Reis de; Silva Filho,José Monteiro da. |
| Two semen extenders were compared for their ability to maintain viability of horse semen during 24 hours of cold preservation, and for the pregnancy rate after artificial insemination. In the experiment 1, five ejaculates from three stallions were split-diluted in either a skimmed milk-based extender (Kenney extender) or a glycine egg yolk-based extender (Foote extender) and cooled at 6-8 ºC for 24 hours. Semen samples stored in Kenney extender for 24 hours had higher motility and spermatic vigor compared with those stored in Foote extender. However, samples stored in Foote extender had higher number of reactive sperm by hypoosmotic test and greater viability by epifluorescence test compared with those in Kenney extender. In the experiment 2, 17 and 23... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artificial insemination; Cooling; Semen extender; Stallion. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012001200005 |
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| Cunha,Evandro César Pereira; Zangeronimo,Márcio Gilberto; Murgas,Luis David Solis; Braga,Douglas Evangelista; Pereira,Bárbara Azevedo; Rocha,Luiz Gustavo Pessoa; Faria,Bruno Generoso; Pereira,Luciano José. |
| The objective of this study was to evaluate the effect of adding different doses of insulin to swine semen processed and stored at 15 ºC. The experiment used sixteen ejaculates from four commercial breeding pigs, distributed in a randomized block design (ejaculate) with split plot along time (0, 24, 48 and 72 hours of storage) with four treatments (insulin levels - 0.0 4.0 8.0 and 12.0 IU per dose) and 16 repetitions. The experimental unit was made of two insemination doses of 100 mL each, with 3×10(9) spermatozoids. Insulin used was NPH-human, added at the time of processing the doses. The addition of insulin did not affect motility, sperm viability, the percentage of abnormal cells, the osmotic resistance or the degradation rate of motility in 120... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Artificial insemination; Boar; Hormone; Metabolism; Sperm; Reproduction. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400031 |
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| Pinna,A.E.; Brandão,F.Z.; Cavalcanti,A.S.; Borges,A.M.; Souza,J.M.G.; Fonseca,J.F.. |
| The aim of this study was to verify the efficacy of reusing intravaginal progesterone (P4) devices on the reproductive parameters in Santa Inês ewes. Females received intravaginal P4 devices for their first, second or third use for five days plus 300 IU eCG IM and 5mg dinoprost laterovulvar 24h before device removal. Blood was collected at different moments. Transrectal ultrasonography was performed from device removal to ovulation. Part of the ewes were submitted to artificial insemination by laparoscopy (IAL - n=55) with fresh semen, whereas the rest were bred by fertile rams (n=41). On the initial 18 h, ewes that received devices for the first time showed higher P4 concentrations (5.1±1.8 vs 3.5±1.4 vs 2.4±1.1 - P<0.05). However, after the first 48h... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sheep; Artificial insemination; CIDR; Intravaginal progesterone insert; Ovulation. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200012 |
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| Meirelles,Ciro; Kozicki,Luiz Ernandes; Weiss,Romildo Romualdo; Segui,Marcio Saporski; Souza,Antonio; Santos,Ivo Walter dos; Breda,Jose Carlos dos Santos. |
| This study aimed to compare the pregnancy rate using the conventional artificial insemination (AI) or deep intracornual artificial insemination (DIAI), with low number of spermatozoa (4.0 million sperm) in 270 Nelore cows. The animals were divided in two groups (G: G1 (135 cows) conventional AI was performed (=semen deposition in the uterine body) and in G2 (135 cows) to DIAI, in ipsilateral horn where the dominant follicle in the ovary had previously been detected, by ultrasound examinations. For both the methods, a single artificial insemination was carried out after visual estrus observation, checked three times a day (morning, afternoon and evening). The pregnancy diagnosis after 45 days was conducted by ultrasound. Results showed a better pregnancy... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Deep intracornual artificial insemination; Beef cattle; Artificial insemination; Nelore cows. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000300006 |
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| Registros recuperados: 42 | |
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