Base de dados : MEDLINE
Pesquisa : G08.686.523.460 [Categoria DeCS]
Referências encontradas : 541 [refinar]
Mostrando: 1 .. 10   no formato [Detalhado]

página 1 de 55 ir para página                         

  1 / 541 MEDLINE  
              next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:27837986
[Au] Autor:Penry JF; Upton J; Mein GA; Rasmussen MD; Ohnstad I; Thompson PD; Reinemann DJ
[Ad] Endereço:Department of Dairy Science, University of Wisconsin-Madison, Madison 53705. Electronic address: penry@wisc.edu.
[Ti] Título:Estimating teat canal cross-sectional area to determine the effects of teat-end and mouthpiece chamber vacuum on teat congestion.
[So] Source:J Dairy Sci;100(1):821-827, 2017 Jan.
[Is] ISSN:1525-3198
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The primary objective of this experiment was to assess the effect of mouthpiece chamber vacuum on teat-end congestion. The secondary objective was to assess the interactive effects of mouthpiece chamber vacuum with teat-end vacuum and pulsation setting on teat-end congestion. The influence of system vacuum, pulsation settings, mouthpiece chamber vacuum, and teat-end vacuum on teat-end congestion were tested in a 2×2 factorial design. The low-risk conditions for teat-end congestion (TEL) were 40 kPa system vacuum (Vs) and 400-ms pulsation b-phase. The high-risk conditions for teat-end congestion (TEH) were 49 kPa Vs and 700-ms b-phase. The low-risk condition for teat-barrel congestion (TBL) was created by venting the liner mouthpiece chamber to atmosphere. In the high-risk condition for teat-barrel congestion (TBH) the mouthpiece chamber was connected to short milk tube vacuum. Eight cows (32 quarters) were used in the experiment conducted during 0400 h milkings. All cows received all treatments over the entire experimental period. Teatcups were removed after 150 s for all treatments to standardize the exposure period. Calculated teat canal cross-sectional area (CA) was used to assess congestion of teat tissue. The main effect of the teat-end treatment was a reduction in CA of 9.9% between TEL and TEH conditions, for both levels of teat-barrel congestion risk. The main effect of the teat-barrel treatment was remarkably similar, with a decrease of 9.7% in CA between TBL and TBH conditions for both levels of teat-end congestion risk. No interaction between treatments was detected, hence the main effects are additive. The most aggressive of the 4 treatment combinations (TEH plus TBH) had a CA estimate 20% smaller than for the most gentle treatment combination (TEL plus TBL). The conditions designed to impair circulation in the teat barrel also had a deleterious effect on circulation at the teat end. This experiment highlights the importance of elevated mouthpiece chamber vacuum on teat-end congestion and resultant decreases in CA.
[Mh] Termos MeSH primário: Indústria de Laticínios/instrumentação
Glândulas Mamárias Animais/fisiopatologia
[Mh] Termos MeSH secundário: Animais
Bovinos
Terapia Combinada
Indústria de Laticínios/métodos
Feminino
Lactação
Glândulas Mamárias Animais/fisiologia
Ejeção Láctea/fisiologia
Vácuo
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1704
[Cu] Atualização por classe:170817
[Lr] Data última revisão:
170817
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161114
[St] Status:MEDLINE


  2 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
PubMed Central Texto completo
Texto completo
[PMID]:27322254
[Au] Autor:Alsaweed M; Lai CT; Hartmann PE; Geddes DT; Kakulas F
[Ad] Endereço:School of Chemistry and Biochemistry, The University of Western Australia, Crawley, WA 6009, Australia. mohammed.alsaweed@research.uwa.edu.au.
[Ti] Título:Human Milk Cells Contain Numerous miRNAs that May Change with Milk Removal and Regulate Multiple Physiological Processes.
[So] Source:Int J Mol Sci;17(6), 2016 Jun 17.
[Is] ISSN:1422-0067
[Cp] País de publicação:Switzerland
[La] Idioma:eng
[Ab] Resumo:Human milk (HM) is a complex biofluid conferring nutritional, protective and developmental components for optimal infant growth. Amongst these are maternal cells, which change in response to feeding and were recently shown to be a rich source of miRNAs. We used next generation sequencing to characterize the cellular miRNA profile of HM collected before and after feeding. HM cells conserved higher miRNA content than the lipid and skim HM fractions or other body fluids, in accordance with previous studies. In total, 1467 known mature and 1996 novel miRNAs were identified, with 89 high-confidence novel miRNAs. HM cell content was higher post-feeding (p < 0.05), and was positively associated with total miRNA content (p = 0.014) and species number (p < 0.001). This coincided with upregulation of 29 known and 2 novel miRNAs, and downregulation of 4 known and 1 novel miRNAs post-feeding, but no statistically significant change in expression was found for the remaining miRNAs. These findings suggest that feeding may influence the miRNA content of HM cells. The most highly and differentially expressed miRNAs were key regulators of milk components, with potential diagnostic value in lactation performance. They are also involved in the control of body fluid balance, thirst, appetite, immune response, and development, implicating their functional significance for the infant.
[Mh] Termos MeSH primário: Aleitamento Materno
MicroRNAs/genética
Ejeção Láctea
Leite Humano/metabolismo
[Mh] Termos MeSH secundário: Feminino
Seres Humanos
Lactente
Metabolismo dos Lipídeos
MicroRNAs/metabolismo
Leite Humano/secreção
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (MicroRNAs)
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170314
[Lr] Data última revisão:
170314
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160621
[St] Status:MEDLINE


  3 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26992732
[Au] Autor:Nagy P; Juhasz J
[Ad] Endereço:Farm and Veterinary Department, Emirates Industry for Camel Milk and Products, PO Box 294239, Dubai, Umm Nahad, United Arab Emirates. peter@camelicious.ae.
[Ti] Título:Review of present knowledge on machine milking and intensive milk production in dromedary camels and future challenges.
[So] Source:Trop Anim Health Prod;48(5):915-26, 2016 Jun.
[Is] ISSN:1573-7438
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The camel dairy industry has gone through major development in the last decade. The world's first large-scale camel dairy farm was established 10 years ago in Dubai, United Arab Emirates, and since then, several commercial and scientific projects have been started, and more studies have been published demonstrating increasing interest in camel milk. The aims of this paper are to summarize relevant published data on factors influencing milk production under intensive management, compare those with our own observations obtained from Emirates Industry for Camel Milk and Products (EICMP), and highlight areas of research that are indispensable for further development. As in other species, the most important factors influencing milk yield are genetic and individual variation, age, parity, stage of lactation, nutrition, management, season, photoperiod, etc. However, the precise role of the various factors has not been thoroughly studied in camels and based on our understanding of the basic physiological processes, endocrine control is minimal. In addition, machine milking of dromedaries is still at early stage and requires research for improvement of the technology and defining factors affecting and improving milk ejection. The role of environment (like photoperiod, nutrition) should also be investigated as there is significant annual variation both in milk quantity and quality that might influence the processing characteristics of raw camel milk. The large pool of animals and thoroughly recorded data at EICMP provide an excellent opportunity for increasing milk production and improving milk quality using various methods, like feeding, management, reproduction, selection, and breeding.
[Mh] Termos MeSH primário: Camelus/fisiologia
Indústria de Laticínios/instrumentação
[Mh] Termos MeSH secundário: Animais
Indústria de Laticínios/métodos
Feminino
Leite/química
Ejeção Láctea/fisiologia
Gravidez
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1701
[Cu] Atualização por classe:171102
[Lr] Data última revisão:
171102
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160320
[St] Status:MEDLINE
[do] DOI:10.1007/s11250-016-1036-3


  4 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26757812
[Au] Autor:Muranishi Y; Parry L; Averous J; Terrisse A; Maurin AC; Chaveroux C; Mesclon F; Carraro V; Bruhat A; Fafournoux P; Jousse C
[Ad] Endereço:INRA, UMR 1019 Nutrition Humaine, Centre de Clermont-Ferrand-Theix, Saint Genès, Champanelle, France.
[Ti] Título:Method for collecting mouse milk without exogenous oxytocin stimulation.
[So] Source:Biotechniques;60(1):47-9, 2016 Jan.
[Is] ISSN:1940-9818
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:It has been reported that breast-feeding more than 6 months strongly decreases the risk of allergy, diabetes, obesity, and hypertension in humans. In order to understand the mechanisms responsible for this benefit, it is important to evaluate precisely the composition of maternal milk, especially in response to environmental cues. Mouse models offer a unique opportunity to study the impact of maternal milk composition on the development and health of offspring. Oxytocin injection of the dam is usually used to stimulate milk ejection; however, exogenous oxytocin might have deleterious effects under some experimental conditions by modifying milk content as well as the physiology and behavior of the dam. Taking advantage of the natural stimulation of the mammary gland that occurs after the reunion of a dam that has been separated from her pups, we developed a new procedure to collect mouse milk without the injection of oxytocin. This method is easy to use, low-cost ,and non-invasive. Moreover, it provides a sufficient amount of milk for use in a wide range of biological analyses.
[Mh] Termos MeSH primário: Aleitamento Materno
Glândulas Mamárias Animais/fisiologia
Ejeção Láctea/fisiologia
Leite
[Mh] Termos MeSH secundário: Animais
Mama/metabolismo
Mama/fisiologia
Feminino
Seres Humanos
Camundongos
Ocitocina/farmacologia
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
50-56-6 (Oxytocin)
[Em] Mês de entrada:1610
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:160114
[St] Status:MEDLINE
[do] DOI:10.2144/000114373


  5 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
PubMed Central Texto completo
Texto completo
[PMID]:26223256
[Au] Autor:Gardner H; Kent JC; Lai CT; Mitoulas LR; Cregan MD; Hartmann PE; Geddes DT
[Ad] Endereço:School of Chemistry and Biochemistry, M310, The University of Western Australia, 35 Stirling Highway, Crawley, 6009, Western Australia. Hazel.Gardner@uwa.edu.au.
[Ti] Título:Milk ejection patterns: an intra- individual comparison of breastfeeding and pumping.
[So] Source:BMC Pregnancy Childbirth;15:156, 2015 Jul 30.
[Is] ISSN:1471-2393
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Milk ejection is a transient episode critical to milk removal and women typically have multiple milk ejections during breastfeeding and pumping. Recently it was found that milk ejection characteristics such as number of milk ejections and periodicity were consistent throughout 12 months of lactation in women who expressed their milk with an electric breast pump. It is not known whether the stimulation of an infant at the breast influences milk ejection patterns or whether this is a programmed event. The aim of this study was to compare milk ejection patterns during breastfeeding and expressing milk with an electric pump within mothers. METHODS: Twelve lactating mothers with normal milk production (502-1356 mL) had milk ejection recorded by measuring the diameter of a major milk duct with ultrasound imaging throughout an entire breastfeed and a 15-min pumping session. Scans were analysed for timing, duration of duct dilation and maximum duct diameter. RESULTS: The initial milk ejection defined as the first increase in duct diameter was observed earlier during breastfeeding than during two phase pumping sessions but was not statistically significant (p = .057). There were no significant differences between the duration of the first or second milk ejection for mothers when breastfeeding or pumping at their maximum comfortable vacuum (p = .18; p = .99). The times taken to reach the peak duct diameter, or the first half of the milk ejection were also not found to be significantly different between breastfeeding and pumping. CONCLUSION: This study suggests that milk ejection patterns remain consistent within individual mothers regardless of whether the mother is breastfeeding or expressing milk indicating a likelihood of the process either being programmed or innate to the individual.
[Mh] Termos MeSH primário: Aleitamento Materno
Extração de Leite
Glândulas Mamárias Humanas/fisiologia
Ejeção Láctea/fisiologia
[Mh] Termos MeSH secundário: Adulto
Feminino
Seres Humanos
Lactente
Lactação/fisiologia
Ultrassonografia Mamária
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1603
[Cu] Atualização por classe:170220
[Lr] Data última revisão:
170220
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150731
[St] Status:MEDLINE
[do] DOI:10.1186/s12884-015-0583-3


  6 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:26183695
[Au] Autor:Firat D; Idiz O; Isik A; Peker K; Atar N; Gul E
[Ad] Endereço:Gneral Surgery, Erzincan University, Erzincan, Turkey.
[Ti] Título:Spontaneous Milk Fistula from an Accessory Breast: An Extremely Rare Case.
[So] Source:Breast J;21(5):554-5, 2015 Sep-Oct.
[Is] ISSN:1524-4741
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Doenças Mamárias/diagnóstico
Fístula/diagnóstico
Ejeção Láctea
[Mh] Termos MeSH secundário: Feminino
Seres Humanos
Doenças Raras
Adulto Jovem
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1606
[Cu] Atualização por classe:150903
[Lr] Data última revisão:
150903
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150718
[St] Status:MEDLINE
[do] DOI:10.1111/tbj.12452


  7 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25901040
[Au] Autor:Leng G; Pineda R; Sabatier N; Ludwig M
[Ad] Endereço:Centre for Integrative PhysiologyUniversity of Edinburgh, Hugh Robson Building, George Square, Edinburgh EH9 8XD, UK Gareth.Leng@ed.ac.uk.
[Ti] Título:60 YEARS OF NEUROENDOCRINOLOGY: The posterior pituitary, from Geoffrey Harris to our present understanding.
[So] Source:J Endocrinol;226(2):T173-85, 2015 Aug.
[Is] ISSN:1479-6805
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:Geoffrey Harris pioneered our understanding of the posterior pituitary, mainly with experiments that involved the electrical stimulation of the supraoptico-hypophysial tract. In the present essay, we explain how his observations included clues to the pulsatile nature of the oxytocin signal - clues that were followed up by subsequent workers, including his students and their students. These studies ultimately led to our present understanding of the milk-ejection reflex and of the role of oxytocin in parturition. Discoveries of wide significance followed, including: the recognition of the importance of pulsatile hormone secretion; the recognition of the importance of stimulus-secretion coupling mechanisms in interpreting the patterned electrical activity of neurons; the physiological importance of peptide release in the brain; the recognition that peptide release comes substantially from dendrites and can be regulated independently of nerve terminal secretion; and the importance of dynamic morphological changes to neuronal function in the hypothalamus. All of these discoveries followed from the drive to understand the milk-ejection reflex. We also reflect on Harris's observations on vasopressin secretion, on the effects of stress, and on oxytocin secretion during sexual activity.
[Mh] Termos MeSH primário: Ejeção Láctea/fisiologia
Ocitocina/fisiologia
Parto/fisiologia
Neuro-Hipófise/fisiologia
Vasopressinas/fisiologia
[Mh] Termos MeSH secundário: Animais
Feminino
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T; REVIEW
[Nm] Nome de substância:
11000-17-2 (Vasopressins); 50-56-6 (Oxytocin)
[Em] Mês de entrada:1512
[Cu] Atualização por classe:150725
[Lr] Data última revisão:
150725
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150423
[St] Status:MEDLINE
[do] DOI:10.1530/JOE-15-0087


  8 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25612749
[Au] Autor:Gardner H; Kent JC; Hartmann PE; Geddes DT
[Ad] Endereço:The University of Western Australia, Perth, Western Australia, Australia hazel.gardner@uwa.edu.au.
[Ti] Título:Asynchronous milk ejection in human lactating breast: case series.
[So] Source:J Hum Lact;31(2):254-9, 2015 May.
[Is] ISSN:1552-5732
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Milk production is under the influence of autocrine control such that the rate of milk synthesis decreases as the breast fills with milk. Effective elimination of milk from the alveoli via the milk ejection reflex will therefore result in increased milk synthesis. It has been assumed that milk ejection occurs in all alveoli simultaneously; however, animal studies have indicated that full alveoli eject milk sooner than less full alveoli, suggesting heterogeneous emptying of the mammary gland. OBJECTIVE: The aim of this study was to determine whether milk ejection occurs asynchronously in the human lactating breast. METHODS: Retrospective analysis of videos made of ultrasound monitoring of milk ducts during pumping. Six video clips (4 women) of ultrasound monitored milk ejections showed obvious differences in the timing of milk flow between different main milk ducts. Duct diameter was simultaneously measured every second in 2 different ducts that drained 2 separate lobes of the breast. RESULTS: For 5 of 6 ultrasound duct monitoring sessions, both duct dilation and visualization of milk flow in the 2 separate main milk ducts differed by 2 to 8 seconds. For the remaining woman, milk was observed to eject from 1 part of the lobe, and when not removed, it flowed in a retrograde fashion into a different part of the lobe. CONCLUSION: Asynchrony of milk ejection occurs in the human lactating breast, suggesting that the timing of myoepithelial cell response differs, resulting in heterogeneous emptying of the gland.
[Mh] Termos MeSH primário: Aleitamento Materno
Extração de Leite
Glândulas Mamárias Humanas/fisiologia
Ejeção Láctea/fisiologia
[Mh] Termos MeSH secundário: Adulto
Feminino
Seres Humanos
Recém-Nascido
Masculino
Gravidez
Estudos Retrospectivos
Ultrassonografia Mamária
Gravação em Vídeo
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Em] Mês de entrada:1612
[Cu] Atualização por classe:161230
[Lr] Data última revisão:
161230
[Sb] Subgrupo de revista:N
[Da] Data de entrada para processamento:150124
[St] Status:MEDLINE
[do] DOI:10.1177/0890334414568120


  9 / 541 MEDLINE  
              first record previous record next record last record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25582591
[Au] Autor:Watters RD; Bruckmaier RM; Crawford HM; Schuring N; Schukken YH; Galton DM
[Ad] Endereço:Quality Milk Production Services, Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853. Electronic address: rdw32@cornell.edu.
[Ti] Título:The effect of manual and mechanical stimulation on oxytocin release and milking characteristics in Holstein cows milked 3 times daily.
[So] Source:J Dairy Sci;98(3):1721-9, 2015 Mar.
[Is] ISSN:1525-3198
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Prestimulation administered to a cow before attachment of the milking unit has historically been performed manually. Development of innovative milking technology has allowed manual stimulation to be replaced by mechanical forms of stimulation. Holstein cows (n=30) were enrolled in a crossover design to determine the effect of manual stimulation (forestripping and drying) and high-vibration pulsation on oxytocin profiles, milk yield, milk flow rates, incidence of delayed milk ejection causing bimodal milk flow curves, and residual milk in Holstein cows milked 3 times daily (3×). All cows were subjected to all treatments. Cows received manual (forestripping and drying) or mechanical (high-vibration pulsation) stimulation along with lag times of 0, 30, or 90 s for 21 consecutive milkings. Forestripping involved the manual removal of 2 streams of milk from each teat and drying of the teats. High-vibration pulsation involved increasing the pulsation cycles from 60 to 300 pulses/min and reducing the vacuum in the pulsation chamber to 20 kPa. The 5 treatments were (1) immediate attachment of the milking machine under normal pulsation (T0); (2) dip plus forestrip and drying with 30-s lag time (FD30); (3) dip plus forestrip and drying with 90-s lag time (FD90); (4) high-vibration pulsation for 30 s (HV30); and (5) high-vibration pulsation for 90 s (HV90). Milk yield per milking averaged 14.0 kg and was significantly different among treatments; however, the maximum difference detected among treatments was 0.8 kg/milking. Milking unit on-time, which represents the time when the milking unit is under normal pulsation and harvesting milk (excluding the high-vibration pulsation time of 30 or 90 s), was shortest (245 s) for cows subjected to 90 s of high-vibration pulsation (HV90) and ranged from 256 to 261 s for all other treatments. Milk harvest may have begun during high-vibration pulsation; however, only 0.13 and 0.32 kg of milk was harvested during high-vibration pulsation for HV30 and HV90, respectively. The incidence of bimodal milk curves was lowest for FD90 (7%) and highest for T0 (21%). The somatic cell count was <72×10(3) cells/mL for all treatments. Residual milk obtained by giving 10 IU of oxytocin in the jugular vein followed by 2 min of milking unit attachment represented 12 to 14% of the total milk and did not differ among treatments. Endogenous oxytocin profiles peaked between 12.4 and 18.3 pg/mL for all treatments, and the peak occurred sooner in manually stimulated cows; however, we detected no difference in oxytocin concentration beyond 2 min after milking unit attachment. High-vibration pulsation elicited a similar oxytocin release when taking the start time of stimulation from manual stimulation or high vibration into consideration. Forestripping for visual observation of milk combined with the use of high-vibration stimulation may reduce variation in the milking routine. A predetermined lag time with minimal variation may be achieved via the time spent in high-vibration stimulation instead of a lag period dictated by milking personnel.
[Mh] Termos MeSH primário: Bovinos/fisiologia
Indústria de Laticínios/métodos
Lactação/fisiologia
Glândulas Mamárias Animais/fisiologia
Ejeção Láctea
Leite/secreção
Ocitocina/sangue
[Mh] Termos MeSH secundário: Animais
Estudos Cross-Over
Indústria de Laticínios/instrumentação
Feminino
Leite/química
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
50-56-6 (Oxytocin)
[Em] Mês de entrada:1512
[Cu] Atualização por classe:150226
[Lr] Data última revisão:
150226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:150114
[St] Status:MEDLINE


  10 / 541 MEDLINE  
              first record previous record
seleciona
para imprimir
Fotocópia
Texto completo
[PMID]:25547306
[Au] Autor:Fogsgaard KK; Bennedsgaard TW; Herskin MS
[Ad] Endereço:Department of Animal Sciences, Aarhus University, 8830 Tjele, Denmark. Electronic address: Katrine.KopFogsgaard@anis.au.dk.
[Ti] Título:Behavioral changes in freestall-housed dairy cows with naturally occurring clinical mastitis.
[So] Source:J Dairy Sci;98(3):1730-8, 2015 Mar.
[Is] ISSN:1525-3198
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Dairy cows exhibit classic signs of sickness behavior during mastitis. However, knowledge about the consequences of naturally occurring mastitis in freestall-housed dairy cows, milked in automatic milking systems, is lacking. The aim of the present study was to describe the behavior of dairy cows after diagnosis and antibiotic treatment of mastitis. In the days before and after antibiotic treatment, the milking behavior, feeding, and activity were examined in 30 mastitic and 30 control Danish Holstein-Friesian cows kept in freestalls and milked by an automatic milking system. Sickness behavior was evident in the mastitic dairy cows and local clinical signs in the udder as well as behavioral changes persisted beyond the 3 d of antibiotic treatment. In the days before diagnosis and treatment, feed intake was reduced compared with the control animals. Although reduced by the antibiotic treatment, this difference persisted until at least 10 d after diagnosis. Sick cows spent less time lying in the initial days after treatment, reversing to the level of the control cows within the 10 d posttreatment period. In the 48 h before antibiotic treatment, the mastitic cows showed increased restlessness during milking, as seen by a higher frequency of tripping and kicking. Mastitic cows continued to show increased kicking during milking even after the antibiotic treatment period. These results show that the behavioral changes induced by naturally occurring mastitis persisted beyond the days of antibiotic treatment, thereby calling for further investigation into management of mastitic dairy cows to optimize recovery and ensure animal welfare during the recovery period after clinical mastitis.
[Mh] Termos MeSH primário: Comportamento Alimentar
Comportamento de Doença
Mastite Bovina/diagnóstico
Atividade Motora
[Mh] Termos MeSH secundário: Animais
Antibacterianos/uso terapêutico
Bovinos
Indústria de Laticínios
Dinamarca
Feminino
Abrigo para Animais
Mastite Bovina/tratamento farmacológico
Ejeção Láctea
[Pt] Tipo de publicação:JOURNAL ARTICLE; RESEARCH SUPPORT, NON-U.S. GOV'T
[Nm] Nome de substância:
0 (Anti-Bacterial Agents)
[Em] Mês de entrada:1512
[Cu] Atualização por classe:150226
[Lr] Data última revisão:
150226
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:141231
[St] Status:MEDLINE



página 1 de 55 ir para página                         
   


Refinar a pesquisa
  Base de dados : MEDLINE Formulário avançado   

    Pesquisar no campo  
1  
2
3
 
           



Search engine: iAH v2.6 powered by WWWISIS

BIREME/OPAS/OMS - Centro Latino-Americano e do Caribe de Informação em Ciências da Saúde