Revista Brasileira de Saude e Producao Animal最新文献_第7页

Use of Melatonin in the In Vitro Production of Bovine Embryos 褪黑素在体外培养牛胚胎中的应用

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-9940210322020

A. D. S. Lira, R. M. Chaves, F. J. M. Moraes Junior, S. C. COSTA JUNIOR, Brenda Karine Lima do Amaral, Hallef Mithchel Pereira Trovão

{"title":"Use of Melatonin in the In Vitro Production of Bovine Embryos","authors":"A. D. S. Lira, R. M. Chaves, F. J. M. Moraes Junior, S. C. COSTA JUNIOR, Brenda Karine Lima do Amaral, Hallef Mithchel Pereira Trovão","doi":"10.1590/s1519-9940210322020","DOIUrl":"https://doi.org/10.1590/s1519-9940210322020","url":null,"abstract":"ABSTRACT We aimed to assess the effects of melatonin in the in vitro production of bovine embryos. Our experiment was conducted at the Laboratório de Reprodução Animal of the Universidade Estadual do Maranhão. The cumulus-oocyte complexes (COCs) were distributed among treatments at concentrations of 0, 10-1, 10-3 and 10-5 µMol/L melatonin. Our experiment was further divided into two: the first was to assess the effect of different concentrations of melatonin (treatments) on the maturation rate of COCs, and the second was to assess the effects of melatonin treatments on the in vitro production of bovine embryos. The results from the first experiment demonstrated no significant difference between the in vitro maturation rate of the cultivated COCs in treatments with melatonin. In the second experiment, however, melatonin treatments yielded statistically higher cleavage, morula and blastocyst rates in the 10-5 µM group (52.9%, 52.9%, and 35.3%, respectively), and lower rates in the 10-1 µM group (19.5%, 19.5% and 7.8%, respectively), compared to the others. The control group (no melatonin) and the 10-3 µM group showed similar results. We concluded that supplementation of melatonin in the in vitro maturation medium resulted in no improvement in the oocyte maturation rate, but in the in vitro production of embryos at different concentrations, the 10-5 µM group displayed better results, but with no improvement in the variables (P < 0.05).","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67530732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Reduction in the frequency of Aspergillus spp. in broiler facilities subjected to cleaning and disinfection 减少清洗和消毒的肉鸡设施中曲霉菌的频率

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121012020

M. Burbarelli, K. Lelis, S. H. Godoy, M. E. G. Moro, R. A. Bordin, A. M. Fernandes, R. Albuquerque

{"title":"Reduction in the frequency of Aspergillus spp. in broiler facilities subjected to cleaning and disinfection","authors":"M. Burbarelli, K. Lelis, S. H. Godoy, M. E. G. Moro, R. A. Bordin, A. M. Fernandes, R. Albuquerque","doi":"10.1590/s1519-99402121012020","DOIUrl":"https://doi.org/10.1590/s1519-99402121012020","url":null,"abstract":"ABSTRACT The present study analyzes influence of two cleaning and disinfection protocols on frequency of Aspergillus spp. in broiler facilities. We conducted an observational study, applying two cleaning and disinfection protocols before housing 960 one-day-old broilers randomly allocated in 32 boxes with 30 birds. We considered two types of housing as independent experiments, which differed as to the bedding. First experiment consisted of new bedding materials, which we reused in second experiment. We applied two different treatments, Common treatment included sweeping organic matter, humidifying residual material with low pressure water, washing with water and neutral detergent, with posterior rinsing. European treatment was according to the standards of the manufacturer of disinfectants. Procedures included dry and humid organic matter removal, humidification, washing with high pressure water, application of detergent, rinsing, and application of two compound disinfectants: glutaraldehyde (250 g/L) + formaldehyde (185 g/L); p-chloro-m-cresol (210 g/L). To evaluate the presence of Aspergillus spp., we collected samples from surfaces and equipment before and after cleaning and disinfection, at 7, 14, 28, and 42 days of experimental period. Mycological assessment included streaking on Petri dishes containing AFPA (Aspergillus Flavus and Parasiticus Agar, Sigma Aldrich®). Common cleaning and disinfection treatment led to a higher presence of fungus in floors and walls (83% vs. 0% p = 0.0030 and 50% vs. 0% p = 0.0450) in first and second experiments, respectively. As this study demonstrates by using the European procedures, performing a detailed cleaning and disinfection protocol reduces the presence of Aspergillus spp. in broiler facilities.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67531461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Forage cactus (Opuntia ficus-indica Mill) meal in rabbit diets in the growth phase 兔饲粮中生长阶段仙人掌饲料的研究

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121102020

L. Pascoal, K. L. D. Silva, P. H. Watanabe, José Mares Felix Brito, Jordanio Fernandes da Silva, P. R. DANTAS JUNIOR, D. R. P. Silva, Mariany de Souza Brito, A. P. A. Bezerra, J.M.S. Almeida

{"title":"Forage cactus (Opuntia ficus-indica Mill) meal in rabbit diets in the growth phase","authors":"L. Pascoal, K. L. D. Silva, P. H. Watanabe, José Mares Felix Brito, Jordanio Fernandes da Silva, P. R. DANTAS JUNIOR, D. R. P. Silva, Mariany de Souza Brito, A. P. A. Bezerra, J.M.S. Almeida","doi":"10.1590/s1519-99402121102020","DOIUrl":"https://doi.org/10.1590/s1519-99402121102020","url":null,"abstract":"ABSTRACT Two experimental tests were carried out to evaluate the inclusion of forage cactus meal in diets for rabbits during the growth phase. In the first test 14 male New Zealand red rabbits were used, housed in metal cages, and distributed in a completely randomly design with two treatments and seven replicates with one animal per experimental unit. The digestibility of the nutrients and the digestible energy of the forage cactus meal were determined by the total feces collection method. The forage cactus meal presented 92.24% of DM, 5.63% of CP and 2,347 kcal of DE/kg. In the second test the inclusion of 0, 10, 20 and 30% forage cactus meal in the rabbit diet was tested for productive performance, carcass characteristics, viscera and economic viability. Thus, 40 male rabbits of the New Zealand red breed were used, distributed in metal cages, completely random designed with four treatments, five replicates and two animals per experimental unit. No influence of inclusion levels (P>0.05) on performance variables, housing characteristics or economic viability was observed. The forage cactus meal can be included in up to 30% in the diets of growing rabbits.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67531598","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Population density and tillering of andropogon grass submitted to different cutting heights 不同刈割高度对雄矮草种群密度和分蘖的影响

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121092020

Paulo Ribeiro da Silva, Maria Elizabete de Oliveira, Ivone Rodrigues da Silva, Daniel Louçana da Costa Araújo, J. V. Costa, C. Costa, Rosianne Mendes de Andrade da Silva Moura

{"title":"Population density and tillering of andropogon grass submitted to different cutting heights","authors":"Paulo Ribeiro da Silva, Maria Elizabete de Oliveira, Ivone Rodrigues da Silva, Daniel Louçana da Costa Araújo, J. V. Costa, C. Costa, Rosianne Mendes de Andrade da Silva Moura","doi":"10.1590/s1519-99402121092020","DOIUrl":"https://doi.org/10.1590/s1519-99402121092020","url":null,"abstract":"ABTRACT The objective of this study was to evaluate the tillering dynamics and population density of Andropogon gayanus cv. Planaltina, submitted to different cutting heights during the dry and rainy season. A randomized block design was adopted in a split plot scheme. In the main plot, the three cutting heights (10, 20, and 30 cm) were allocated, while the subplots included the following periods: dry (October, November, and December) and rainy (April, May, and June). During the dry period at the height of 10 cm, there was a higher population density of tillers, with 1298.44 tillers m-2. The appearance rate was higher in October for heights of 10 and 30 cm and in December for 20 cm. The 10-cm height provided a higher mortality rate. The survival rate and the stability index were higher in October, with 88.47% and 1.38, respectively. In the rainy season, specifically June, the pasture had a higher height (130.06 cm). The rate of appearance and the stability index were higher in April and during June there was greater mortality, while at the 20-cm height, there was less mortality and greater survival (85.71%) of the tillers. The 20-cm cut height provides a higher survival rate and lower mortality rate of andropogon grass in the dry and rainy season.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67531582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Mineral supplementation of dairy heifers in Marandu-Grass pasture in spring and summer seasons 春、夏季马兰度草场乳牛的矿物质补充

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-9940210432020

Carlos Augusto de Almeida Targino Alcoforado, Aianne Batista Lira, C. G. Souza, E. Santos, S. V. Bispo, S. Gonzaga Neto

{"title":"Mineral supplementation of dairy heifers in Marandu-Grass pasture in spring and summer seasons","authors":"Carlos Augusto de Almeida Targino Alcoforado, Aianne Batista Lira, C. G. Souza, E. Santos, S. V. Bispo, S. Gonzaga Neto","doi":"10.1590/s1519-9940210432020","DOIUrl":"https://doi.org/10.1590/s1519-9940210432020","url":null,"abstract":"ABSTRACT Here in this study we assessed dairy heifers kept in tropical grasslands during spring and summer seasons to observe the effects of two supplementation strategies upon their performance. Sixteen dairy heifers (Holstein 5/8 x Gyr 3/4) with 135.25 kg of body mass were randomly assigned in two supplementation treatments (e.g., mineral salt and protein salt supplement) during spring and summer seasons, divided into two groups of eight animals that represented 4.29 animal unit ha. Initial and final fasted weights (i.e., feed and water withheld for 16h) were obtained before to start and at the end of each grazing cycle (28 days), and then the weight gain (kg animal-1) per grazing cycle was calculated by the difference between final and initial weights. There was no significant effect (P <0.05) on the intake of dry matter, crude protein, ether extract, neutral detergent fiber, and dry matter digestibility, between treatments (P <0.05). However, there was a significant effect (P <0.05) between seasons; e.g., respective means of dry matter intake (kg day-1,% BW g / kg 0.75), intake of crude protein (g day-1 g / kg 0.75), ether extract (g day-1), neutral detergent fiber (g day-1 and% BW) were 3.95 and 2.88 kg, 2.54 and 1.65%, 89.27 and 59.56 g kg0.75, 429.89 and 298.43 g day-1, 9.72 and 6.18 g kg0.75, 118.79 and 84.07 g day-1, 2.90 and 2.05 kg day-1, 1.86 and 1.18%, for Spring and Summer seasons. Moreover, the dry matter intake (% BW and g kg 0.75 of DM) were higher (P < 0.05) during the spring season (e.g., 2.53 vs 1.64 % BW; and 89.26 vs 59.56 g kg0.75 DM).","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67531913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ingestive behavior, ruminal and blood kinetics in lambs fed cow cheese whey 奶牛奶酪乳清饲喂羔羊的摄食行为、瘤胃和血液动力学

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121192020

L. F. Guedes, Tatiana Santos Primo, Â. M. Vasconcelos, R. Pompeu, J. N. M. Neiva, C. Costa, D. Oliveira, M. Rogério

{"title":"Ingestive behavior, ruminal and blood kinetics in lambs fed cow cheese whey","authors":"L. F. Guedes, Tatiana Santos Primo, Â. M. Vasconcelos, R. Pompeu, J. N. M. Neiva, C. Costa, D. Oliveira, M. Rogério","doi":"10.1590/s1519-99402121192020","DOIUrl":"https://doi.org/10.1590/s1519-99402121192020","url":null,"abstract":"ABSTRACT The objective of this study was to evaluate the inclusion of cow cheese whey (CCW) in the diet for lambs on the ingestive behavior, ruminal and blood parameters. Twenty crossbred, male, non-castrated lambs with 25 kg body weight were assigned to four treatments: control diet (composed of corn, soybean meal and native pasture silage) and test diets (control diet + inclusion of CCW in increasing levels of 1.6, 2.7 and 4.0% in DM), in a completely randomized design with four treatments and five replications. Means were compared by Tukey’s test, and the strength of association between variables was tested by Pearson’s correlation. Regression analysis was also performed for data from the collection of ruminal fluid and blood. Behavioral assessments were made at a 24-hour interval in measurements taken every five minutes. The inclusion of CCW in the diet did not impair ruminal pH, but promoted a decrease in rumination and feeding times, also causing a lower number of cuds and a lower number of cud chews. The lowest concentration of ammonia nitrogen and total protein were found in lambs receiving the diet with 4% CCW. However, these values were within the range recommended for microbial growth. CCW is a potential protein alternative in lambs feed as it does not interfere with nutrient intake, ruminal and blood parameters, and favors a positive nitrogen balance.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67531814","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Infrared thermography and feeding behavior of lambs fed increasing levels of safflower grains 红花籽粒饲喂水平增加对羔羊的红外热成像及摄食行为的影响

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121232020

M. S. Ferreira, R. Goes, Antonio Campanha Martinez, J. Gandra, Walter Antonio Gonçales Junior, A. Bega, L. D. Silva, Jessica Priscila da Paz

{"title":"Infrared thermography and feeding behavior of lambs fed increasing levels of safflower grains","authors":"M. S. Ferreira, R. Goes, Antonio Campanha Martinez, J. Gandra, Walter Antonio Gonçales Junior, A. Bega, L. D. Silva, Jessica Priscila da Paz","doi":"10.1590/s1519-99402121232020","DOIUrl":"https://doi.org/10.1590/s1519-99402121232020","url":null,"abstract":"ABSTRACT The objective was to evaluate the feeding behavior, physiological responses, and rumen heat emission of lambs fed with safflower grains. Eighteen lambs were randomly distributed in a completely randomized design. Safflower grain was added to the diets in the proportions of 0.0; 7.5 and 15%. The safflower grain did not change the patterns of eating, leisure, or rumination; however, it improved the efficiency of NDF ingestion, by 26%. The head temperature decreased by 1.5 ° C to include 7.5% safflower; and the rectal temperature decreased quadratically with the addition of safflower (39.5 and. 39.08 ° C). There was a linear trend of decreasing head temperature as the inclusion of safflower increased. The temperature of the eyeball decreased by 1.1 ° C when 7.5% of safflower DM was added to the diet and increased by 0.6 ° C when a 15% safflower was added. The ruminal temperature increased linearly for the addition of safflower (1.8 ° C). Safflower improves the efficiency of the use of NDF and the inclusion of 15% safflower can be used without effects on ingestive behavior. The head, eye, and left flank areas can be used; however, the left flank appears to be the best region for this type of study. Infrared thermography can be useful as a non-invasive assessment of lambs' diets.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67532091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Ruminal fermentation kinetics of by-products using the semi-automatic technique of in-vitro gas production 半自动化体外产气技术瘤胃发酵副产物动力学研究

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121242020

Í. Cabral, Sullyvan Silva Oliveira, J. Azevêdo, L. L. Souza, R. F. D. Lima, Cláudia da Costa Lopes, F. S. Otani, S. M. Reis, Cássio Andrey Fonseca de Sousa

{"title":"Ruminal fermentation kinetics of by-products using the semi-automatic technique of in-vitro gas production","authors":"Í. Cabral, Sullyvan Silva Oliveira, J. Azevêdo, L. L. Souza, R. F. D. Lima, Cláudia da Costa Lopes, F. S. Otani, S. M. Reis, Cássio Andrey Fonseca de Sousa","doi":"10.1590/s1519-99402121242020","DOIUrl":"https://doi.org/10.1590/s1519-99402121242020","url":null,"abstract":"ABSTRACT The objective of this study was to develop a specific equation for the conversion of pressure values (psi) to volume (ml) for the Laboratory of Bromatology of the Federal University of Western Pará. To this end, the ruminal fermentation kinetics of regional feedstuffs were evaluated using the semi-automatic technique of in-vitro gas production. To set up the targeted equation, samples of ground corn, soybean meal, rice bran, Mombasa grass, cupuassu pie, cassava residues, and banana leaves were incubated and the pressure and volumes of the gases produced during the fermentation process were measured at predetermined times and related. These data on the volume of produced gases were used to determine, by applying the bi-compartmental logistic model, the ruminal fermentation kinetics parameters. The equation found for the laboratory was V = 0.3757P2 + 1.5972P + 0.2189. Ground corn and cassava residue showed a higher degradation rate of non-fibrous carbohydrates (0.120 and 0.163 %/h respectively) and higher final gas volume (228.91 and 273.17 ml/g of DM, respectively). As for the degradation rate of fibrous carbohydrates, ground corn (0.023 %/h), rice bran (0.023 %/h), and cassava residue (0.021 %/h) presented the highest degradation rate. Thus, a specific equation to be used at the Laboratory of Bromatology of the Federal University of Western Pará was identified, according to the method applied and the altitude of the premises. Ruminal fermentation kinetics of cassava residue and rice bran showed the same parameters as corn, which may suggest the possibility of replacing corn in the diet of ruminant animals.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67532187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Phenotypic characterization and weight prediction of crossbred Dorper × Santa Inês ewes 杜珀×桑塔Inês杂交母羊表型特征及体重预测

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/S1519-99402121332020

Hugo Pereira Santos, A. Aiura, Guilherme Alfredo Magalhães Gonçalves, Felipe Shindy Aiura

{"title":"Phenotypic characterization and weight prediction of crossbred Dorper × Santa Inês ewes","authors":"Hugo Pereira Santos, A. Aiura, Guilherme Alfredo Magalhães Gonçalves, Felipe Shindy Aiura","doi":"10.1590/S1519-99402121332020","DOIUrl":"https://doi.org/10.1590/S1519-99402121332020","url":null,"abstract":"ABSTRACT The objective was to determine zoometric indices, correlate, and predict body weight based on the biometric measurements of F1 Dorper × Santa Inês (F1 D × SI) ewes created extensively. Were 25 F1 D × SI sheep monitored, with ages varying from 2 to 9 months. Body weight, thoracic perimeter, belly perimeter, body length, withers height, rump height, rump width, and rump length were measured on a monthly basis and zoometric indices were estimated from them. Descriptive data analysis, Pearson's correlation, and regression analysis were performed. The biometric measurements and zoometric indices of F1 D × SI ewes indicate an animal of aptitude for cutting, with good conformation. In addition, they demonstrate favorable aspects for reproduction, a fundamental characteristic in the selection of matrices. Body weight has a high and positive correlation for all characteristics analyzed, with values ranging from 0.74 of the rump length to 0.88 of the thoracic perimeter. The regressions for all biometric measurements were highly significant (P <0.0001) with an emphasis on the thoracic perimeter that has the highest coefficient of determination (R² = 0.77), the other measures presented below 0.70. It was concluded that F1 Dorper × Santa Inês ewes have characteristics for meat production and for reproduction. Also, of the biometric measurements, the thoracic perimeter can be used to predict the body weight of F1 Dorper × Santa Inês ewes.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67532314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Technological Advances in Cattle Welfare: An Analysis of Patent Families 牛福利的技术进步:专利家族的分析

Revista Brasileira de Saude e Producao Animal Pub Date : 2020-01-01 DOI: 10.1590/s1519-99402121222020

O. D. S. Teixeira, L. B. Pereira, Alice Munz Fernandes, A. Fantinel

{"title":"Technological Advances in Cattle Welfare: An Analysis of Patent Families","authors":"O. D. S. Teixeira, L. B. Pereira, Alice Munz Fernandes, A. Fantinel","doi":"10.1590/s1519-99402121222020","DOIUrl":"https://doi.org/10.1590/s1519-99402121222020","url":null,"abstract":"ABSTRACT The research carried out intended to analyze the panorama of patents related to welfare in cattle. To this end, a search was carried out on the worldwide Questel Orbit patent registration database oriented toward the existence of terms associated with welfare in cattle in the documents of patent families. The investigation corresponded to the period from the beginning of the registrations in 1967 until August 2019. In this way, an initial portfolio was created of 272 registrations. Of these, 77 documents were related to cattle, with direct or indirect interventions in the optimization of the welfare. Data analysis took place in a quantitative way and through the classification of patent families in seven categories: nutrition, health, management, genetics, infrastructure/facilities, physiological and behavioral indicators, and traceability/certification. The largest number of patent families corresponded to the areas of rural facilities, animal nutrition, health, and new physiological and behavioral indicators, totaling 73%. The temporal distribution of these records shows that the interest of researchers in promoting technological innovations focused on well-being began in 1995, with expressiveness from 2013. It should also be noted that the largest registration of patent families comes from China (51%), followed by European countries, which account for 23%, and the United States (19%), while Brazil represents only 6% of the total documents. Despite the recent patent registrations related to cattle, there has been an increase in recent years, denoting the growth of efforts for technological innovation of this productive chain regarding animal welfare.","PeriodicalId":38522,"journal":{"name":"Revista Brasileira de Saude e Producao Animal","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67532027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0