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Assessment of a bone biopsy technique for measuring tiludronate in horses: A preliminary study Full text
2011
Delguste, Catherine | Doucet, Michèle | Gabriel, Annick | Guyonnet, Jérôme | Lepage, Olivier M | Amory, Hélène
Assessment of a bone biopsy technique for measuring tiludronate in horses: A preliminary study Full text
2011
Delguste, Catherine | Doucet, Michèle | Gabriel, Annick | Guyonnet, Jérôme | Lepage, Olivier M | Amory, Hélène
peer reviewed
Show more [+] Less [-]Assessment of a bone biopsy technique for measuring tiludronate in horses: A preliminary study Full text
2011
Delguste, Catherine | Doucet, Michèle | Gabriel, Annick | Guyonnet, Jérôme | Lepage, Olivier M. | Amory, Hélène
This study assessed the feasibility of measuring tiludronate in horses using a minimally invasive bone biopsy technique. Eight horses were treated with intravenous (IV) tiludronate [1 mg/kg bodyweight (BW)], either once (n = 4) or twice, 28 d apart (n = 4). The horses that were treated once were euthanized on days 1, 43, 57, or 92 and those that were treated twice, were euthanized on days 112, 154, 194, or 364. Bone samples were taken bilaterally from each horse at 4 sites: the third metacarpal bone (MCIII), the 13th rib (R13), the tuber coxae (TC), and the cuboid bone (CB). Test samples were taken with a 5-mm diameter dental drill, while larger reference samples were taken with an osteotome. The concentrations of tiludronate were measured by high performance liquid chromatography (HPLC) with ultraviolet (UV) detection. The TC was the easiest site to sample, and no technical difficulties were encountered for extraction and measurement. Drill sampling at the MCIII was difficult. Moreover, both the extraction and measurement caused technical problems and results were unreliable in most cases (93%). Drill samples obtained from the R13 were very small and access to the CB required considerable dissection, which would not be feasible in vivo. Forty-six percent and 36% of the tiludronate measurements performed on the R13 and CB samples, respectively, were unreliable. The ratio of tiludronate concentrations ranged from 73% to 185% (median: 118%) in the TC, 65% to 208% (median: 81%) in the R13, and 26% to 110% (median: 57%) in the CB. In all but 1 horse, the highest concentrations of tiludronate were found in the TC. It was concluded that bone biopsies performed at the TC were adequate for measuring tiludronate in horses and should be considered in future for repeated measurements over time in living animals.
Show more [+] Less [-]Impact of successive freezing-thawing cycles on 3-T magnetic resonance images of the digits of isolated equine limbs Full text
2011
Bolen, Géraldine | Haye, Dimitri | Dondelinger, Robert | Massart, Laurent | Busoni, Valeria
peer reviewed | The purpose of this study was to assess the impact of freezing and thawing on MR images of equine feet examined ex vivo. Nine equine cadaver digits were first imaged at room temperature (T0). Among the 9 digits, 3 (group 1) were imaged in a 3 Tesla MR system after one and after 2 freezing-thawing cycles. Digits of group 1 were thawed in a cold room at 4°C for 36h. Three other digits (group 2) were imaged after one freezing-thawing cycle. Digits of group 2 were thawed in a cold room at 4°C and then rescanned after 24h at room temperature. The last 3 digits (group 3) were scanned after one freezing-thawing cycle. Digits of group 3 were thawed at room temperature for 24h. Sequences used were Spin Echo (SE) T1, Turbo Spin Echo (TSE) T2 and proton density (PD), Short Tau Inversion Recovery (STIR), Double Echo Steady State (DESS), 3D Gradient Echo (GE) T1 and 2D GE T2*. Images obtained on the fresh limbs at room temperature were subjectively compared side by side to images obtained at the different freezing-thawing cycles. A quantitative analysis to assess signal change between examinations was realized by measuring signal to noise ratio (SNR). Visibility and margination of the anatomical structures of the foot and overall image quality were subjectively considered unchanged except for the hoof where the lamina was considered less visible distally after freezing and thawing in the GE T2* and in TSE T2 and PD sequences. Quantitative analysis demonstrated SNR changes in the bone marrow only in the distal phalanx in the SE T1 sequence when the feet were thawed at room temperature. When the feet were thawed in a cold room at 4°C, bone marrow SNR changes were present in the SE T1, GE T1 and TSE PD sequences. Signal changes were significant in the synovial recess when the thawing process was made at 4°C and not when the thawing process was at ambient temperature. The soft tissue structures and the hoof capsule showed significant changes with an increase of SNR, except in STIR, after freezing and thawing at 4°C and at room temperature. SNR changes in the soft tissues were mainly present in GE sequences.
Show more [+] Less [-]Maturação e desenvolvimento embrionário in vitro de oócitos bovinos após bloqueio da meiose com inibidores de MPF | In vitro maturation and embryo development of bovine oocytes after meiosis blockage with MPF inhibitors Full text
2011
Marques, Mariana Groke | Mello, Marco Roberto Bourg de | Tavares, Liliam Mara Trevisan | Nicacio, Alessandra Corallo | Assumpção, Mayra Elena Ortiz D'Avila | Visintin, José Antonio
O objetivo deste estudo foi avaliar a maturação e o desenvolvimento embrionário após a fecundação in vitro de oócitos bovinos que tiveram a maturação bloqueada com Butirolactona I e Roscovitina em meio de pré-maturação suplementado com soro fetal bovino (SFB). Oócitos foram divididos em 4 grupos: Controle 0 hora, Controle (maturação por 24 horas), Butirolactona I (bloqueio da maturação com 150µM de Butirolactona I por 24 horas, seguido de 24 horas de maturação) e Roscovitina (bloqueio da maturação com 50µM de Roscovitina por 24 horas, seguido de 24 horas de maturação). Para avaliar a maturação nuclear, os oócitos foram fixados e corados em aceto orceína. Parte dos oócitos dos grupos Controle 24 horas, Roscovitina e Butirolactona I após o período de maturação, foi fecundado in vitro. O desenvolvimento embrionário foi avaliado pelos índices de clivagem (D3) e formação de blastocistos (D7). Oócitos do grupo Butirolactona I apresentaram índices de Vesícula Germinativa após o bloqueio e de Metáfase 2 após a maturação semelhantes ao dos grupos Controle 0 hora e Controle, respectivamente. Por outro lado, a Roscovitina apresentou menores índices de Vesícula Germinativa e Metáfase 2. Os grupos Controle e Butirolactona I apresentaram maiores índices de clivagens. O grupo Controle apresentou maior produção de blastocistos que o Roscovitina e não diferiu do grupo Butirolactona I. Conclui-se que a Butiroloactona I pode ser utilizada no sistema de pré-maturação em meio contendo SFB, pois apresentou resultados semelhantes ao do grupo Controle o mesmo não ocorrendo com a Roscovitina, que apresentou menores índices de maturação oocitária e de desenvolvimento embrionário. | This study evaluated the bovine oocyte maturation and embryo development after in vitro fertilization. The maturation of the oocytes was blocked using Butyrolactone I and Roscovitine using pre-maturation medium supplemented with fetal calf serum (FCS). The ocytes were divided in four groups: Control 0 hour, Control (24 hours of maturation), Roscovitine (maturation blockage with 50mM Roscovitine during 24 hours followed by 24 hours of maturation), and Butyrolactone I (maturation blockage with 150mM Butyrolactone I during 24 hours followed by 24 hours of maturation). The oocytes were fixed and stained with aceto orcein to evaluate the nuclear maturation. After the maturation period, the remaining oocytes of the Control group, Roscovitine, and Butyrolactone I were fertilized in vitro. Embryo development was assessed by the cleavage rate (D3) and blastocysts formation (D7). The Butyrolactone I group had similar rates of germinal vesical stage oocytes during blockage, and Metaphase 2 after maturation, comparing to Control group at 0 hour and Control group, respectively. On the other hand, the Roscovitine group had lower rates of vesical stage oocytes during blockage, and Metaphase 2 after maturation comparing to Control groups. After in vitro fertilization, higher rates of cleavage were observed in Control and Butyrolactone I groups. For the blastocyst formation rate, the Control group showed better results than Roscovitine group. In summary, Butyrolactone I group had similar results to the Control group, and for this reason, is suitable for pre-maturation of bovine oocytes using FCS. In contrast, Roscovitine group had lower oocyte maturation and embryo development.
Show more [+] Less [-]Comparação da eficácia de dois métodos de extração para determinação do perfil lipídico de ácidos graxos do sêmen ovino por meio da Cromatografia Líquida de Alta Eficiência | Comparison of the efficacy of two extraction methods for determination of lipid fatty acids of sheep semen by high performance liquid chromatography Full text
2011
Cardoso, Patrícia Barbosa Salla | Nichi, Marcílio | Zogno, Maria Amélia | Fujiwara, Haroldo | Barnabe, Valquíria Hyppolito | Barnabe, Renato Camparanut
A indústria de lã, leite, carne e pele de ovinos tem crescido em importância e novas biotecnologias do sêmen estão sendo estudadas para a elucidação de causas de infertilidade em machos. Sabe-se que danos causados na membrana espermática diminuem a qualidade seminal. Considerando que estas são compostas por uma bicamada de fosfolipídios e que a peroxidação lipídica é causadora de lesão celular, explica-se a importância de estudos sobre os lipídios constituintes do sêmen. A peroxidação lipídica é consequente da reação entre os lipídios e as espécies reativas de oxigênio. Esse quadro pode ser controlado pela presença de antioxidantes no sêmen. O sêmen foi coletado pela técnica da vagina artificial e após análise imediata e mediata, foi separado em duas frações: plasma seminal e pellet de espermatozoide. Seus lipídios foram extraídos por dois métodosbaseados no método Folch, Lesse Stanley modificado diferentes, utilizando clorofórmio e metanol como solventes. Após foram qualificados e quantificados pela especificidade e sensibilidade da Cromatografia Liquida de Alta Eficiência e escolheu-se a melhor extração. A análise estatística dos dados foi realizada através do programa SAS for Windows. O AG saturado predominante no espermatozoide é o mirístico e o AG insaturado predominante é o DHA, em ambas as extrações. No plasma seminal, nos dois métodos, o AG saturado que prevalece é o palmítico e o insaturado é o oleico. Dentre os dois métodos estudados, o que obtivemos melhores resultados na identificação e quantificação dos AG foi a Método 1. | The sheep industry for wool, milk and meat production is of increasing importance and new technologies for assessment of semen are in course for the elucidation of male infertility causes. It is well known that damage to the sperm membrane decreases semen quality. Considering that sperm membranes are composed by a phospholipid bilayer, and that lipid peroxidation is a major cause of cell damage, studieson the lipid components of semen are relevant. Lipid peroxidation is a consequence of the reaction between lipids and reactive oxygen species. This event may be reduced in the presence of antioxidants in semen. Semen was collected with an artificial vagina and, after sperm evaluation, samples were centrifuged to separate the sample into two fractions: seminal plasma and spermatozoa pellet. Both had their lipids extracted by two different methods based on Folch, Less& Stanley method modified, using chloroform e methanol as solvents. After the extraction, some esterified fatty acids were qualified and quantified for the sensitivity and specificity to the high performance liquid chromatography in order to determine the most efficient extraction technique in quantitative and qualitative aspects. Statistical analysis was performed using SAS software for Windows. The predominant saturated fatty acid in sperm under these experimental conditions was the myristic and the most abundant insaturated fatty acid in both extractions was DHA. In seminal plasma, in both methods, the prevailing fatty acid is the saturated palmitic and the unsaturated oleic. Among the methods evaluated, we obtained the best results of identification and quantification of fatty acids in Method 1.
Show more [+] Less [-]Parâmetros qualitativos da carne de cordeiros submetidos aos modelos de produção orgânico e convencional | Qualitative parameters of lamb meat submitted to organic and conventional production models Full text
2011
Zeola, Nivea Maria Brancacci Lopes | Silva Sobrinho, Américo Garcia da | Manzi, Gabriela Milani
Este trabalho objetivou avaliar parâmetros qualitativos da carne, análise sensorial e quantificação de resíduo de droga veterinária e metais pesados provenientes de 48 cordeiros Ile de France submetidos aos modelos de produção orgânico e convencional, os quais foram abatidos aos 32 kg de peso corporal. A carne dos cordeiros do modelo orgânico teve maior teor de amarelo que a dos cordeiros do modelo convencional aos 45 minutos após o abate, sendo que os demais parâmetros L* e a* não foram afetados, já a cor da carne dos cordeiros 24 horas após o abate, não foi influenciada pelos tratamentos. Não houve efeito dos tratamentos no pH e na temperatura aos 45 minutos e 24 horas após o abate, na capacidade de retenção de água e na força de cisalhamento, enquanto as perdas de peso na cocção foram influenciadas pelos tratamentos. Na carne dos cordeiros criados no modelo orgânico, a maciez subjetiva e a aceitação global foram inferiores quando comparadas às do modelo convencional.Os tratamentos não influenciaram os teores de arsênio, cádmio e chumbo da carne. Constatou-se inexistência do princípio ativo ivermectina na carne proveniente dos modelos de produção orgânico e convencional. | This work aimed to evaluate qualitative parameters of meat, sensorial analysis, ivermectin residue and heavy metals from 48 Ile de France lambs submitted to organic and conventional production models which were slaughtered at 32 kg of body weight. Lamb meat from organic model had larger yellowness when compared to conventional model 45 minutes after the slaughter, but L * and a* parameters were not affected; however, not even the color of lamb meat 24 hours after the slaughter was influenced by treatments. There was not effect of treatments in pH and temperature at 45 minutes and 24 hours after the slaughter, in water holding capacity and in shear force, while the cooking losses were influenced by treatments. In the meat of lambs submitted to organic model, the subjective tenderness and the global acceptance were lower when compared to convencional model. Treatments didn't influence arsenic, cadmium and lead meat tenor. Inexistence of ivermectin was verified in meat from organic and conventional production models.
Show more [+] Less [-]Estudo da eficácia de espuma para a depopulação de aves para situações de emergência sanitária | Experimental evaluation of foam-based poultry depopulation for emergencies Full text
2011
Ishizuka, Masaio Mizuno | Ishizuka, Walter Kazuhiko | Buchala, Fernando Gomes | Albuquerque, Ricardo de | Matushima, Eliana Reiko | Andreatti Filho, Raphael Lúcio
São inúmeras as dificuldades observadas na depopulação de elevado número de aves e é importante proceder-se à depopulação no interior do próprio aviário por questões de biossegurança do homem em casos de emergência sanitária causada por doenças de aves de elevada transmissibilidade, como a influenza aviária e a doença de Newcastle. Construiu-se o equipamento gerador de espuma para provocar a anóxia física em aves. Verificou-se a eficácia da espuma gerada através do uso de líquido detergente de alta expansão sobre o sacrifício de galinhas, avaliando-se os sinais sensoriais, tempo de morte, letalidade e lesões macro e microscópicas. Duzentas galinhas de postura com 78 semanas de idade foram divididas em dez grupos experimentais e submetidas a diferentes períodos de exposição à espuma, variando de 5min30s minutos a 8min15s minutos. A partir de seis minutos de exposição à espuma 100% das aves foram mortas. A presença de bolhas de espuma na cavidade oral e traqueia foram constatadas em todos os períodos de exposição à espuma, indicando a ocorrência de asfixia física. Congestão nas mucosas da cavidade oral e traqueia foram também observadas em todos os períodos de exposição. No exame histopatológico dos pulmões de todas as aves, observou-se a presença de congestão e hemorragia difusa de moderada intensidade. Nenhuma alteração foi observada na traqueia das aves. A eficácia da espuma como método de depopulação de aves foi constatada neste trabalho, podendo ser recomendada diante da necessidade de atendimento a emergências sanitárias. | There are several difficulties in the control of quick spreading and highly contagious poultry diseases such as avian influenza and Newcastle disease, which require large numbers of poultry to be rapidly killed inside the poultry houses in order to minimize human exposure and disease spreading. We have built and tested an equipment that uses a water-based foam from high expansion fire detergent that induces poultry anoxia measured by sensorial signs, time to death, lethality and macro and microscopically lesions. Two hundred 78-weeks old hens were divided into ten groups and exposed to different times of death according to exposure to water-foam varying from 5min30s minutes to 8min15s minutes. All poultry died after six minutes of water-foam cover. Foam bubbles were observed in oral cavity and trachea of all poultry at each time of exposure to foam, revealing physical asphyxia. Macroscopically, congestion in oral cavity and in trachea mucosa was observed. Histopathology revealed diffuse and moderate hemorrhage in lungs and no lesion in trachea. The efficacy of water-foam procedure for poultry depopulation was demonstrated validating its recommendation in case of emergency.
Show more [+] Less [-]Adaptation of the gill epithelium of an euryhaline fish, the guppy (Poecilia vivipara), to freshwater | Adaptação do epitélio branquial de peixes eurialinos, guaru (Poecilia vivipara), para água doce Full text
2011
Sabóia-Moraes, Simone Maria Teixeira de | Saldiva, Paulo Hilário Nascimento | Silva, José Roberto Machado Cunha da | Yamada, Áureo Tatsumi | Aloia, Thiago Pinheiro Arrais | Hernandez-Blazquez, Francisco Javier
O peixe eurihalino sul-americano Poecilia vivipara (BLOCH; SNEIDER, 1801), o guppy, é encontrado tanto em estuários quanto em águas de rios, o que sugere uma alta adaptabilidade aos diferentes ambientes de salinidade. Neste trabalho, estudamos a adaptação do epitélio interlamelar, do arco e do rastelo das brânquias dos peixes de estuário de água doce. Os resultados revelam que o epitélio branquial de Poecilia vivipara pode ajustar-se à água doce, diminuindo a proporção volumétrica (PV) de células mucosas do epitélio interlamelar e aumentando a PV de células clorídricas. No entanto, não houve nenhuma evidência de alteração morfológica semelhante na região do rastelo branquial. O epitélio do rastelo branquial parece ser parte de um compartimento diferente que é menos sensível a variações de salinidade. | The south-american euryhaline fish Poecilia vivipara (BLOCH; SNEIDER, 1801), the guppy, is found both in estuary and river waters, which suggests high adaptability to environments of different salinity. In this work we studied the adaptation of the interlamellar, bars and rakers epithelia of the gills of estuary fish to freshwater conditions. The results reveal that the gill epithelia of Poecilia vivipara can adjust itself to freshwater by decreasing the VP of mucous cells of the interlamellar epithelium and increase the volumetric proportion (VP) of chloride cells. However, there was no evidence of similar morphological alteration in the rakers region. The epithelia of the rakers appears to be part of a different compartment that is less sensitive to variation of salinity.
Show more [+] Less [-]Bovinos submetidos a dietas deficientes em energia por longo período: desempenho animal e sua relação com os teores de T3 e IGF-1 | Long term dietary energy deficiency in steers: performance animal and T3 and IGF-1 relationships Full text
2011
Lima, Alessandra Silva | Sucupira, Maria Claudia Araripe | Ortolani, Enrico Lippi
Para avaliar a influência de dietas deficientes em energia sobre o perfil hormonal, metabólico e clínico em bovinos, foram usados 12 garrotes aleatoriamente distribuídos em três grupos com quatro animais para receber por 140 dias, as rações: (G1) adequada, para ganho de peso de 900g/dia (17,7 Mcal/d de ED e 13% de PB); (G2) 80% dos requerimentos de mantença (5,8 Mcal/d de ED e 7% de PB); e (G3) 60% dessas exigências (4,7 Mcal/d de ED e 5% de PB). Nos grupos G2 e G3 houve acentuada diminuição do peso vivo e do consumo de alimentos. O déficit energético provocou redução destacada nos teores sanguíneos de IGF-1 e T3. A perda de peso foi uma direta consequência do menor consumo de alimentos, da qualidade inferior de ração ingerida e da menor atuação de IGF-1 e T3. A mensuração da altura dos animais ao término do experimento apresentou uma diferença no G1 de 59% e 73% maior que G2 e G3, respectivamente. O IGF-1 foi considerado o principal indicador do status energético, pois diminuiu de maneira sensível e rápida sua concentração no decorrer do tempo experimental; este hormônio foi diretamente influenciado pelos teores de T3. | To evaluate the influence of diets with different degrees of energy deficiency on the hormonal profile, and on metabolic and clinical states of steers, 12 steers were randomly distributed in three groups of four animals each. The groups received the following diets for 140 days: (G1) 100% of the maintenance to stimulate to weight gain of 900 gr/day (DE: 17.7 Mcal/d and 13% de CP); (G2) 80% of the maintenance (DE: 5.8 Mcal/d and 7% de CP); (G3) 60% of the same requirements (DE: 4.7 Mcal/d and 5% de CP). In both energy deficiency groups (G2 and G3) there was a decrease in body weight and in feed intake during experimental period. In relation to hormonal profile, the energy deficit caused an acute reduction in plasma levels of IGF-1 and T3. Weight loss was due to lower feed intake, poor quality of diet ingested and also due to low concentrations of IGF-1 and T3. Measuring height of animals at the end of the experiment showed a difference of 59% in G1 and 73% higher than G2 and G3, respectively. IGF-1 was considered the best indicator of the energetic status, because its blood levels reduction was sensible and rapid during the dietary energy deficit; and it was influenced directly by level of T3.
Show more [+] Less [-]Estradiol-17β altera expressão proteica endometrial em fêmeas bovinas tratadas no 17º dia do ciclo estral | 17β-estradiol alters endometrial protein expression in bovine females treated at the 17th day of estrous cycle Full text
2011
Alves Junior, Sérgio Silva | Castro, Fernanda Cavallari de | Soares, Natália | Pereira, Flávia Thomaz Verechia | Balieiro, Júlio Cesar de Carvalho | Munin, Flávia Simone | Cesar, Marcelo de Cerqueira | Binelli, Mario | Membrive, Claudia Maria Bertan
Em fêmeas bovinas, a liberação de prostaglandina F2α (PGF2α) é induzida in vivo pelo estradiol (E2). Acredita-se que o E2 estimule a síntese de proteínas essenciais na produção de PGF2α. Objetivou-se avaliar o efeito do E2 no incremento da concentração de proteínas totais e na modificação da composição proteica em explantes endometriais de fêmeas bovinas tratadas com E2 no 17º dia do ciclo estral. Novilhas cruzadas foram tratadas no 17º dia do ciclo estral, via intravenosa, com 0 mg (Grupo Controle; n = 6) ou 3 mg de E2 (Grupo E2; n = 6) e abatidas duas horas após. Explantes endometriais foram isolados, submetidos à extração de proteínas totais, quantificados e avaliados por Eletroforese Unidimensional em gel de poliacrilamida 10% SDS-PAGE. A concentração de proteínas totais não diferiu entre os grupos, 6296,10 + 439,90 µg/mL para o Grupo Controle e 8426,56 + 1156,00 µg/mL para o Grupo E2 (p = 0,1158). Não houve diferença significativa (p > 0,05) no perfil proteico dos explantes endometriais em géis corados com Coomasie Blue. Em géis corados com Nitrato de Prata verificou-se no Grupo E2 maior porcentagem relativa das bandas referentes ao peso molecular de 75 a 76 kDa (8,40% vs. 4,89%; no Grupo E2 e Controle respectivamente; p < 0,05) e 108 a 110 kDa (6,85% vs. 3,84%; no Grupo E2 e Controle respectivamente; p < 0,05). Observou-se no Grupo E2 menor porcentagem relativa da banda referente ao peso molecular de 90 kDa (5,78% vs. 9,83%; no Grupo E2 e Controle respectivamente; p < 0,05). Conclui-se que o E2 não incrementa a concentração de proteínas no endométrio, entretanto, altera a composição proteica nos explantes endometriais, indicando que o E2 altera a expressão de proteínas específicas. | In bovine females the release of prostaglandin F2α (PGF2α) is induced in vivo by estradiol (E2). It is believed that E2 stimulates the synthesis of essential proteins for the production of PGF2α. This study aimed to evaluate the effect of E2 in increasing the concentration of total protein and modifying the protein composition of endometrial explants from bovine females treated with E2 at the 17th day of estrous cycle. Crossbred heifers were treated at 17th day of estrous cycle intravenously with 0 mg (Control Group; n = 6) or 3 mg of E2 (E2 Group; n = 6) and killed two hours after. Endometrial explants were isolated, subjected to extraction of total protein, quantified and were analyzed by one-dimensional electrophoresis on polyacrylamide gel 10% SDS-PAGE. The concentration of total protein did not differ between groups, 6296.10 + 439.90 µg/mL for the Control Group and 8426.56 + 1156.00 µg/mL for E2 Group (p = 0.1158). There was no significant difference (p > 0.05) in the protein profile of endometrial explants in gels stained with Coomasie Blue. In gels stained with Silver Nitrate it was verified in E2 Group greater relative percentage of the bands referring to the molecular weight of 75 to 76 kDa (8.40% vs. 4.89% in E2 Group and Control respectively; p < 0.05) and 108 to 110 Kda (6.85% vs. 3.84% in E2 Group and Control respectively, p < 0.05). It was observed in E2 Group lower relative percentage of the band referring to the molecular weight of 90 kDa (5.78% vs. 9.83% in E2 Group and control respectively; p < 0.05). We concluded that the E2 does not increase the protein concentration in the endometrium, however, it modifies the proteinic composition in the endometrial explants, indicating that E2 alters the expression of specific proteins.
Show more [+] Less [-]Swine plasma and whole egg in ration for weaner pigs in performance in initial phase and residual effect until finishing phase | Plasma suíno e ovo inteiro em rações de leitões sobre desempenho na fase inicial e efeito residual até a terminação Full text
2011
Thomaz, Maria Cristina | Hannas, Melissa Izabel | Kronka, Rodolfo Nascimento | Tucci, Fernanda Marcussi | Scandolera, Antônio João | Loddi, Maria Marta | Budiño, Fábio Enrique Lemos
Foram utilizados 64 leitões distribuídos em oito tratamentos: ração com leite em pó (LP), três rações com níveis crescentes de plasma suíno (PS), três rações com níveis crescentes de ovo inteiro (OI) e ração com alto nível de farelo de soja (FS). Avaliou-se o ganho diário de peso (GDP), o consumo diário de ração (CDR) e a conversão alimentar (CA). Os animais que consumiram ração FS apresentaram média de GDP superior aos demais tratamentos, dos 35 aos 48 dias de idade. O aumento dos níveis de PS proporcionou redução linear do GDP, dos 21 aos 35 e dos 35 aos 48 dias de idade e do CDR dos 48 aos 138 dias de idade e piora linear da CA, dos 21 aos 35 dias de idade. Considerando o período da desmama até à terminação as rações inicias podem conter PS e OI, substituindo parcialmente à PB do leite em pó em 25 e 45%, respectivamente. | Were used 64 weaned pigs, distributed in eight treatments: ration with skim milk (SM), three rations with crescent levels of swine plasma (SP), three rations with whole egg (WE) and a ration with high inclusion of soybean meal (SB). Daily weight gain (DWG), daily feed intake (DFI) and feed conversion (FC) were evaluated. The animals that consumed ration SB have the mean of DWG higher that other treatments, and inferior FC, from 35 to 48 days of age. The crescent levels of SP promoted linear reduction in DWG, from 21 to 35, and from 35 to 48 days of age, in DFI from 48 to 138 days of age and linear increased in FC from 21 to 35 of age. Considering the weaned phase until finishing, initial rations can be formulated with SP and WE substituted partially the CP of skim milk in 25 and 45%, respectively.
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