Consulta: subjectFacets:"Castration"
Registros recuperados: 9
Data/hora: 18/06/2024 12:48:04

THE USE OF VOCALIZATION SIGNALS TO ESTIMATE THE LEVEL OF PAIN IN PIGLETS
Provedor de dados: 70
Autores: Cordeiro,Alexandra F. da S.; Nääs,Irenilza de A.; Baracho,Marta dos S.; Jacob,Flávia G.; Moura,Daniella J. de.
ABSTRACT Pain is considered a condition that most affect the welfare of animals and its measurement is seen as a difficult task. This research aimed to determine the level of pain in pigs by their vocalization. It was recorded the vocalizations of 20 male piglets under normal circumstances (I), marking by Australian method (II), tail trimming management (III), and castration (IV). A unidirectional microphone and a digital recorder were used to record the sound signals. The results suggested that Pitch frequency (Hz), the maximum amplitude (Pa), and intensity (dB) increased from pain-free pigs to the marking procedure; and from marking to both tail trimming and castration The tail trimming and castration vocal response did not differ.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Stress; Caudectomy; Castration; Marking; Swine; Sound signals.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000400486

Transcriptional regulators and regulatory pathways involved in prostate gland adaptation to a hypoandrogen environment
Provedor de dados: 74
Autores: Nishan,Umar; da Rosa-Ribeiro,Rafaela; Damas-Souza,Danilo Marchete; Barbosa,Guilherme Oliveira; Carvalho,Hernandes F.
Abstract Anti-androgen therapies, including orchiectomy, are effective at promoting prostate cancer remission, but are followed by progression to the more aggressive castration-resistant prostate cancer (CRPC). Castration promotes gland and tumor shrinkage. However, prostate adaptation to androgen deprivation involves striking parallel events, all requiring changes in gene expression. We hypothesized that transcription factors (TF) and other transcription-related genes are needed to orchestrate those changes. In this work, downstream analysis using bioinformatic tools and published microarray data allowed us to identify sixty transcriptional regulators (including 10 TF) and to integrate their function in physiologically relevant networks. Functional...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Androgens; Arnt; Castration; Prostate; Transcription factors.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572019000500802

Desempenho e características de carcaça de bovinos F1 Pardo Suiço corte x Nelore, inteiros ou castrados em diferentes idades.
Provedor de dados: 14
Autores: PORTO, J. C. A.; FEIJÓ, G. L. D.; SILVA, J. M. da; GOMES, A.; KICHEL, A. N.; CIOFFI, J. C.
Foram avaliados o desempenho e as características de carcaça de 104 bovinos F1 pardo suíço corte x nelore, distribuídos, a partir do nascimento, em cinco tratamentos: castração ao nascimento, castração ao desmame, castração aos doze meses, castração aos dezoito meses e não castrados . Os animais foram criados em pastagens (perenes) cultivadas, com suplementação na primeira seca e terminação em confinamento na segunda seca. O ponto de abate foi estipulado para um mínimo de 460 quilos de peso vivo e 3 milímetros de gordura de cobertura, sendo esta medida por ultra-sonografia. Não houve diferenças entre os tratamentos (P&gt;0,05) para ganho diário e peso vivo do nascimento aos dezoito meses de idade e durante o período de engorda em confinamento. Entretanto,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Bovino de corte; Pardo Suiço; Nelore; Mestico; Desempenho; Brasil; Carcasses.; Castração; Carcaça; Confinamento; Performance; Terminação.; Brown Swiss; Nellore; Feedlots; Brazil; Beef cattle; Castration; Crossbreds; Finishing.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/324160

IMPORTANCE OF INCOME IN COW-CALF MANAGEMENT AND PRODUCTIVITY
Provedor de dados: 31
Autores: Ott,   Stephen L.
The USDA's National Animal Health Monitoring System (NAHMS) collected data on management practices and cow-calf herds as a source of family income from a representative sample of cow-calf producers from 23 of the leading cow-calf states.  Overall, 2,713 producers with one or more beef cows participated in the NAHMS Beef '97 Study, representing 85.7 percent of the beef cows and 77.6 percent of the beef cow operations in the United States as of January 1997. Producers whose cow-calf herds were the primary source of family income were more productive than those whose herds were a supplemental source of income. Cow-calf herds were the primary source of income for 14 percent of the producers and provided supplemental income for 69 percent of the producers....
Tipo: Report
Palavras-chave: NAHMS; Beef; Cattle; Cow-calf; Epidemiology; Economics; Marketing; Management; Production; Income; Dehorning; Castration; Vaccinations; Breeding; Calving; Semen testing; Livestock Production/Industries.
Ano: 1998
URL: http://purl.umn.edu/32792

CHAPA, BEEF COW/CALF HEALTH AND PRODUCTIVITY AUDIT, PART I: BEEF COW/CALF HERD MANAGEMENT PRACTICES IN THE UNITED STATES
Provedor de dados: 31
Autores: 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

Net requirements of energy, protein and macrominerals for weight gain of grazing beef cattle castrated at different ages, with and without supplementation
Provedor de dados: 96
Autores: Rocha,Anilza Andréia da; Paulino,Mário Fonseca; Fernandes,Henrique Jorge; Barros,Lívia Vieira de; Lopes,Sidnei Antonio; Galon,Leandro; Silva,Aline Gomes da; Almeida,Daniel Mageste de.
The objective of this experiment was to estimate the requirements of energy, protein and macrominerals of grazing crossbreds calves, in Brachiaria decumbens Stapf pasture, castrated at different ages, with and without supplementation. Forty-seven young calves at initial age of 120±30.1 days and 115.3±1.97 kg of live weight were used. To estimate net energy requirements for weight gain, a regression equation between energy retained in the gain and empty body weight gain and metabolic empty body weight was obtained. For estimation of net protein requirements for weight gain, a regression equation was adjusted between protein retained in gain and empty body weight gain and energy content of this gain. Net requirements of Ca, P, Mg and Na for weight gain were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Castration; Supplementation; Zebu cattle.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200025

Performance and nutritional evaluation of beef cattle raised on pasture, castrated at different ages, with and without supplementation
Provedor de dados: 96
Autores: Rocha,Anilza Andréia da; Paulino,Mário Fonseca; Fernandes,Henrique Jorge; Barros,Lívia Vieira de; Lopes,Sidnei Antonio; Galon,Leandro; Silva,Aline Gomes da; Almeida,Daniel Mageste de.
The objective of this study was to evaluate performance and nutritional traits of beef cattle raised on pastures, castrated at different ages, with and without supplementation. Forty-four crossbred young bulls with predominance of Zebu breed at initial average age of 120±30 days were used in the experiment. Animals were distributed in a completely randomized design in a factorial arrangement with four ages of castration and two supplementation systems. The animals were distributed into four groups and placed on Brachiaria decumbens Stapf pastures, where they were fed concentrate supplementation or mineral salt ad libtum (control). Animals were castrated at 120, 240 and 360 days of age with average body weight of 115, 175 and 276 kg, castrated or not, in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Castration; Digestibility; Intake; Supplementation.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400026

Regulation of antioxidant enzyme activities in male and female rat macrophages by sex steroids
Provedor de dados: 56
Autores: Azevedo,R.B.; Lacava,Z.G.M.; Miyasaka,C.K.; Chaves,S.B.; Curi,R.
Human and animal immune functions present sex dimorphism that seems to be mainly regulated by sex hormones. In the present study, the activities of the antioxidant enzymes total superoxide dismutase (SOD), catalase (CAT), and glutathione peroxidase (GSH-Px) were measured in intraperitoneal resident macrophages from adult male and female rats. In addition to comparing males and females, we also examined the regulation of these enzyme activities in macrophages by sex steroids. GSH-Px activity did not differ between male and female macrophages. However, both total SOD and CAT activities were markedly higher in females than in males (83 and 180%). Removal of the gonads in both males and females (comparison between castrated groups) increased the difference in...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Antioxidant enzymes; Macrophages; Sex hormones; Estrogen; Progesterone; Castration.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000500018

Effect of castration on renal glycosaminoglycans and their urinary excretion in male and female rats with chronic renal failure
Provedor de dados: 56
Autores: Lemos,C.C.S.; Tovar,A.M.F.; Guimarães,M.A.M.; Bregman,R.
Glycosaminoglycans (GAGs) participate in a variety of processes in the kidney, and evidence suggests that gender-related hormones participate in renal function. The aim of this study was to analyze the relationship of GAGs, gender, and proteinuria in male and female rats with chronic renal failure (CRF). GAGs were analyzed in total kidney tissue and 24-h urine of castrated (c), male (M), and female (F) Wistar control (C) rats (CM, CMc, CF, CFc) and after 30 days of CRF induced by 5/6 nephrectomy (CRFM, CRFMc, CRFF, CRFFc). Total GAG quantification and composition were determined using agarose and polyacrylamide gel electrophoresis, respectively. Renal GAGs were higher in CF compared to CM. CRFM presented an increase in renal GAGs, heparan sulfate (HS), and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Castration; Chronic renal failure; Gender; Glycosaminoglycans; Proteinuria.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2013000700567