Arquivo Brasileiro De Medicina Veterinaria E Zootecnia最新文献

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Extruded urea could replace true protein source in supplements for lambs finished in tropical pastures 膨化尿素可替代热带牧场育肥羔羊饲粮中的真蛋白质源
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-02-10 DOI: 10.1590/1678-4162-12645
M. Bonin, C. Ítavo, L. Ítavo, M. Gomes, A. I. Souza, G. S. Difante, T. Arco, K. Ferelli, É. Soares, A. Gurgel, L. Surita
{"title":"Extruded urea could replace true protein source in supplements for lambs finished in tropical pastures","authors":"M. Bonin, C. Ítavo, L. Ítavo, M. Gomes, A. I. Souza, G. S. Difante, T. Arco, K. Ferelli, É. Soares, A. Gurgel, L. Surita","doi":"10.1590/1678-4162-12645","DOIUrl":"https://doi.org/10.1590/1678-4162-12645","url":null,"abstract":"ABSTRACT The aim of this study was to evaluate the effects of replacing 50% of the true protein from soybean meal with extruded urea on the performance and carcass characteristics of lambs finished on pasture. Twenty lambs with initial weight of 29.9±6.2kg and 5 months of age, distributed in two treatments in blocks at random, were kept in pastures of Urochloa spp. Supplemented with 2% of body weight (BW). The treatments consisted of supplements containing soybean meal as the only true protein source (control), or extruded urea replacing 50% of soybean meal (NPN treatment). There was no effect of treatment on total supplement intake. There were differences in average daily gain (242.1 vs. 264.6g/day), slaughter weight (41.9 vs. 45.0kg) and carcass weight (18.9 vs. 20.1kg). There was no effect of the treatment on the final body condition score, hot carcass yield, carcass length, breast depth, subcutaneous fat thickness or rib eye area. The group of animals that received extruded urea showed superior carcass finishing characteristics (99.0% vs. 66.0%), maturity (22.0% vs. 0.0%), marbling (55.0% vs. 33.0%), meat texture (44.0% vs. 33.0%) and fat (66.0% vs. 22.0%). There were no significant effects on tenderness (7.5kg/f) or flesh color (L* = 33.2; a* = 16.2; b* = 8.3). There were no significant changes in the biochemical profile of the animals' blood during the experiment for both treatments. The replacement of 50% of protein from soybean meal by the extruded urea as NPN source in the supplement for lambs finished in Urochloa spp pastures provides better animal performance and qualitative characteristics of meat, without altering quantitative carcass characteristics.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67420739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Heterozygosity as a factor of increasing the meat productivity of kalmyk steers 杂合性是提高卡尔梅克肉牛产肉率的一个因素
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-02-10 DOI: 10.1590/1678-4162-12831
E. Anisimova, M. Slozhenkina, I. Gorlov, Dmitry Nikolaev, N. Mosolova, D. Mosolova
{"title":"Heterozygosity as a factor of increasing the meat productivity of kalmyk steers","authors":"E. Anisimova, M. Slozhenkina, I. Gorlov, Dmitry Nikolaev, N. Mosolova, D. Mosolova","doi":"10.1590/1678-4162-12831","DOIUrl":"https://doi.org/10.1590/1678-4162-12831","url":null,"abstract":"ABSTRACT The present work carried out full-genome SNP genotyping of 16-month-old Kalmyk steers to study their productive characteristics and beef quality indicators in the leading farms of the Republic of Kalmykia (Group I was located at the Agrofirma Aduchi farm; Group II at the Kirovsky breeding plant, and Group III at the Plodovitoye agricultural cooperative). As a result of investigating the frequencies of some homozygous alleles, the study established that the heterozygous allele A/A varied considerably along the lines from 0.2785 to 0.3146, while B/B varied from 0.3697 to 0.4125. Meanwhile, the heterozygous allele A/B varied from 0.2986 to 0.3197. Estimated inbreeding coefficients were 1.35, 1.28 and 1.27%. The conducted studies established a higher natural resistance determined by lysozyme, bactericidal and phagocytic activities of steers raised at the Agrofirma Aduchi as farm than their counterparts at the other agricultural enterprises. Over the entire period of the experiment, the steers from 8 to 16 months of age in Group I exceeded the indices of their counterparts in Groups II and III by 30.46g, or 3.31% and 38.04g, or 4.16%, respectively. It is concluded that an increase in the heterozygosity of the studied Kalmyk steers not only results in higher meat productivity, but also improves the quality of carcass and beef quality, increases the yield of more valuable meat grades, and optimizes the fractional composition of proteins.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":"1 1","pages":""},"PeriodicalIF":0.4,"publicationDate":"2023-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67421229","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Mycobacteriosis in an appearantly healty atlantic mackerel (Scomber Scombrus, L.) and zoonotic potential 表面健康的大西洋鲭鱼(Scomber Scombrus, L.)的分枝杆菌病和人畜共患的可能性
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12618
O. Ozmen
{"title":"Mycobacteriosis in an appearantly healty atlantic mackerel (Scomber Scombrus, L.) and zoonotic potential","authors":"O. Ozmen","doi":"10.1590/1678-4162-12618","DOIUrl":"https://doi.org/10.1590/1678-4162-12618","url":null,"abstract":"ABSTRACT Mycobacteriosis was detected in seven out of one Atlantic mackerel (Scomber scombrus) that was purchased for human consumption from a fish market. The fish was apparently healthy but during cleaning, several granulomatous foci were noticed in the visceral organs. Histopathological examination of the lesions revealed numerous foci characterized by caseous necrosis in the center of the lesion surrounded by epithelioid giant cells. Ziehl-Neelsen staining revealed the presence of rod-shaped, acid-fast bacteria. Furthermore, immunohistochemical examination revealed the presence of a protein of mycobacterial origin in giant cells and macrophages. Based on gross and microscopic findings, mycobacteriosis was diagnosed. This report showed that due to its zoonotic potential, mycobacteriosis should be considered even in healthy-appearing fishes for human consumption.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42672650","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Prediction of live weight in beef heifers using a body volume formula 用体体积公式预测肉用小母牛的活重
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12886
L. Castillo-Sanchez, J. Canul-Solís, D. Pozo-Leyva, E. Camacho-Pérez, J.M. Lugo-Quintal, A. Chaves-Gurgel, G. T. Santos, L. Ítavo, A. Chay-Canul
{"title":"Prediction of live weight in beef heifers using a body volume formula","authors":"L. Castillo-Sanchez, J. Canul-Solís, D. Pozo-Leyva, E. Camacho-Pérez, J.M. Lugo-Quintal, A. Chaves-Gurgel, G. T. Santos, L. Ítavo, A. Chay-Canul","doi":"10.1590/1678-4162-12886","DOIUrl":"https://doi.org/10.1590/1678-4162-12886","url":null,"abstract":"ABSTRACT The objective of this study was to develop and evaluate linear, quadratic, and allometric models to predict live weight (LW) using the body volume formula (BV) in crossbred heifers raised in southeastern Mexico. The LW (426.25±117.49kg) and BV (338.05±95.38 dm3) were measured in 360 heifers aged between 3 and 30 months. Linear and non-linear regression were used to construct prediction models. The goodness-of-fit of the models was evaluated using the Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), coefficient of determination (R2), mean squared error (MSE), and root MSE (RMSE). In addition, the developed models were evaluated through cross-validation (k-folds). The ability of the fitted models to predict the observed values was evaluated based on the RMSEP, R2, and mean absolute error (MAE). The quadratic model had the lowest values of AIC (2688.39) and BIC (2700.05). On the other hand, the linear model showed the lowest values of MSE (7954.74) and RMSE (89.19), and the highest values of AIC (2709.70) and BIC (2717.51). Despite this, all models presented the same R2 value (0.87). The cross-validation (k-folds) evaluation of fit showed that the quadratic model had better values of MSEP (41.49), R2 (0.85), and MAE (31.95). We recommend the quadratic model to predictive of the crossbred beef heifers' live weight using the body volume as the predictor.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48821959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Seroprevalence of antibodies against smooth Brucella in small ruminants in the states of Sergipe, Bahia, Ceará and Paraíba 塞尔希佩州、巴伊亚州、塞埃尔<e:1>州和Paraíba州小反刍动物光滑布鲁氏菌抗体的血清流行率
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12615
G. Silva, Ricardo França Santos, A. Lima, D. A. Farias, S. M. Alves, T. Simões, J. N. Costa, T. S. Souza, N. A. Assis, F. Alves, R. R. Pinheiro, L. Mathias
{"title":"Seroprevalence of antibodies against smooth Brucella in small ruminants in the states of Sergipe, Bahia, Ceará and Paraíba","authors":"G. Silva, Ricardo França Santos, A. Lima, D. A. Farias, S. M. Alves, T. Simões, J. N. Costa, T. S. Souza, N. A. Assis, F. Alves, R. R. Pinheiro, L. Mathias","doi":"10.1590/1678-4162-12615","DOIUrl":"https://doi.org/10.1590/1678-4162-12615","url":null,"abstract":"ABSTRACT Brucellosis is a zoonotic disease widespread almost all over the world, representing a significant economic and public health problem. Brucella melitensis, B. suis and B. abortus are considered the most pathogenic species for humans. The most virulent species, B. melitensis is endemic in many parts of the world, particularly the biovar 3 in the Mediterranean and Eastern Europe. Some Latin American countries are seriously affected by biovar 1, especially Mexico, Peru and northern Argentina. Furthermore, while Brazil is considered free of this etiologic agent, one recurrent question is whether this infection really does not occur in Brazil or there is a lack of research/data on the subject. To answer this question, this study aims to investigate the occurrence of antibodies against smooth Brucella in goats and sheep in the states of Sergipe, Paraíba, Ceará and Paraíba. All samples were screened by the Rose Bengal test (RBT). The complement fixation (CFT) and the fluorescence polarization (FPT) tests were used as confirmatory tests. There were no positive samples in the confirmatory tests (both CFT and FPT). We, therefore, conclude that this result reinforces the previous knowledge regarding the exotic status of B. melitensis infection in Brazil.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49066302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared thermography as a technique for detecting subclinical bovine mastitis 红外热像检测亚临床乳腺炎
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12834
A.V.D. Oliveira, E. Reis, P. Ferraz, M. Barbari, G. Santos, M. Cruz, G. F. Silva, A.O.L. Silva
{"title":"Infrared thermography as a technique for detecting subclinical bovine mastitis","authors":"A.V.D. Oliveira, E. Reis, P. Ferraz, M. Barbari, G. Santos, M. Cruz, G. F. Silva, A.O.L. Silva","doi":"10.1590/1678-4162-12834","DOIUrl":"https://doi.org/10.1590/1678-4162-12834","url":null,"abstract":"ABSTRACT Infrared thermography is a non-invasive diagnostic tool for early detection of subclinical mastitis in pasture-raised dairy cows. The study was conducted on eight dairy farms, in Sena Madureira, Acre, in the Western Amazon, during the rainy season. One hundred and thirteen lactating crossbred cows were monitored, with measurements performed once a day before milking, from 02:00 to 06:00 in the morning. The California Mastitis Test (CMT) was subsequently applied. Data processing was performed in the R programming language and evaluated by linear models. Our results show that cow udder surface temperature by infrared thermography showed significant differences (p<0.05) between the months of the year. Cow udder temperatures of thermographic images were significantly different (p<0.05) from CMT results for animals with subclinical mastitis. CMT results showed that 45 cows (39.8%) in January, 52 cows (46%) in February and 57 cows (50.4%) in March had subclinical mastitis. Infrared thermography is a technique that can be used for the early detection of subclinical mastitis in dairy herds in a grazing system, as it detected an increase in the udder surface temperature of the same cows that were positive for CMT.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43370905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
In vitro sperm characteristics and in vivo fertility of sex-sorted and conventional semen in suckled Nelore cows at a traditional schedule for timed-AI with estrus detection 用传统时间人工智能(ai)检测奶牛的发情,研究了性别分类和传统时间人工智能的乳牛精子体外特性和体内育性
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12757
J. Diniz, J. Riveros, A. Teixeira, I. Pereira, Á. M. Borges, G. Monteiro, R. Peres, L. O. Rocha, M. E. Beletti, L.Z. Oliveira
{"title":"In vitro sperm characteristics and in vivo fertility of sex-sorted and conventional semen in suckled Nelore cows at a traditional schedule for timed-AI with estrus detection","authors":"J. Diniz, J. Riveros, A. Teixeira, I. Pereira, Á. M. Borges, G. Monteiro, R. Peres, L. O. Rocha, M. E. Beletti, L.Z. Oliveira","doi":"10.1590/1678-4162-12757","DOIUrl":"https://doi.org/10.1590/1678-4162-12757","url":null,"abstract":"ABSTRACT The aim of this study was to assess in vitro sperm characteristics and pregnancies/AI (P/AI) of conventional and sex-sorted semen at timed-AI of suckled, multiparous Nelore cows. All cows (n=348) were submitted to a traditional estradiol/progesterone(P4)-based protocol. At 48h after P4-device removal, the estrous behavior was recorded, and AI was performed with conventional or sex-sorted semen from two bulls. The following sperm assessments were performed: CASA, Hyposmotic Test, sperm morphometry and chromatin structure by TB staining. P/AI were reduced (P<0.001) for sex-sorted compared to conventional semen in cows expressing estrus (27vs47%) or not (11vs.37%). Membrane integrity (Bull1: 30.3±9.6 vs. 52.3±12.4%, P=0.01; Bull2: 24.5±3.0 vs. 48.7±1.6%, P=0.006) and sperm concentration (Bull1: 23.2±0.6 vs. 43.0±0.8x10⁶sperm/mL, P<0.001; Bull2: 25.1±2.8 vs. 42.1±0.7x10⁶sperm/mL; P<0.001) were reduced in sex-sorted compared to conventional semen, for both bulls. Total and progressive motility were reduced in sex-sorted semen for Bull1 (TM: 49.7±15.9 vs. 94.9±1.9%, P=0.007; PM: 16.7±3.4 vs. 44.1±13.2%, P=0.009) and no differences were detected for Bull2 (TM: 45.0±17.5 vs. 68.2±19.1%, P=0.098; PM: 12.8±4.7 vs. 30.0±13.0%, P=0.065). Sperm ellipticity from sex-sorted was lower than conventional semen for Bull2 (0.306±0.01 vs. 0.342±0.02, P=0.02) and no difference was detected for Bull1 (0.332±0.01 vs. 0.330±0.01, P=0.55). Reduced in vivo fertility was observed for sex-sorted semen, regardless of estrous behavior. In vitro sperm quality of sex-sorted semen was compromised for both bulls, but differently affected for each sire.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48655388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Dynamics of nuclear and cytoplasm maturation of bovine oocytes cultivated in vitro in medium supplemented with fulerol 牛卵母细胞在添加黄甾醇的培养基中的核质和细胞质成熟动力学
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12808
Rogério Palhares, V. M. Prata, A. Leite, P. P. Nunes, A.M.P. Leo, M. Ladeira, E. Silva, Á. M. Borges
{"title":"Dynamics of nuclear and cytoplasm maturation of bovine oocytes cultivated in vitro in medium supplemented with fulerol","authors":"Rogério Palhares, V. M. Prata, A. Leite, P. P. Nunes, A.M.P. Leo, M. Ladeira, E. Silva, Á. M. Borges","doi":"10.1590/1678-4162-12808","DOIUrl":"https://doi.org/10.1590/1678-4162-12808","url":null,"abstract":"ABSTRACT The aim of this work was to evaluate, in vitro, the dynamics of nuclear and cytoplasmic maturation of bovine oocytes in traditional IVM medium (CT) and supplemented with fullerol (MF50), for 36 hours. The nuclear maturation of CT (n=300) and MF50 (n=270) every 6 hours, stained with Hoechst33342 and cytoplasmic, the mitochondrial distribution of CT (n=197) and MF50 (n=159) at every 12 hours, stained with Mitotracker Orange. At 6 hours, CT oocytes (19%) were in MI (metaphase I), while in MF50 they were in GV (germ vesicle) or GVB (GV breakeage), repeating at 12 hours. At 18 hours, 46.3% were matured in CT, and 20% in MF50. At 24 hours, 43.9% of maturation was observed in the MF50 group, and 63.8% in the CT. At 30 and 36 hours, the maturation pattern was stable, but with the onset of oocyte degeneration. There was a delay in cytoplasmic maturation with 36 hours (P<0.05) in MF50 (53.9% of mature gametes), compared to CT (69.8%). With immature cytoplasm, they were 10.4% and 31.7% for CT and MF50 (P<0.05), respectively. It was concluded that fullerol possibly interfered in the expansion of cumulus oophorus cells, as well as delayed the meiotic progression and cytoplasmic maturation.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44029760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relationships between antral follicle counts and ovarian morphology of Bos indicus of different ages 不同年龄籼稻卵泡数与卵巢形态的关系
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12650
J.R. Silva, C. Medeiros, M. B. Souza-Cáceres, J. M. Gheller, W. Silva, J. Santos, M. Ferreira, A. Ferraz, F. Melo-Sterza
{"title":"Relationships between antral follicle counts and ovarian morphology of Bos indicus of different ages","authors":"J.R. Silva, C. Medeiros, M. B. Souza-Cáceres, J. M. Gheller, W. Silva, J. Santos, M. Ferreira, A. Ferraz, F. Melo-Sterza","doi":"10.1590/1678-4162-12650","DOIUrl":"https://doi.org/10.1590/1678-4162-12650","url":null,"abstract":"ABSTRACT This study aimed to evaluate the relationship between the antral follicle count (AFC) and the ovarian morphology of Bos indicus in different age groups: 12-23 months (G1), 24-35 months (G2), 36-47 months (G3), 48-59 months (G4), and >60 months (G5). Ovaries were collected individually and sent to the laboratory, where we measured AFC, the diameter and weight of the ovaries, dominant follicle (DF, ≥8mm), corpus luteum (CL), and small follicles (SF, <8mm). AFC were classified as high, intermediate-high, intermediate-low, and low. A group of ovaries was subjected to follicular aspiration to evaluate the morphological quality of the recovered cumulus oocyte complexes (COCs). Mean AFC did not vary between ages. The morphological characteristic that was most closely correlated with AFC was the weight of the small follicles. There was no relationship between AFC and the weight and diameter of the DF and CL. Quality of the COCs was superior in ovaries in which the CL was present, but it did not vary between the AFC classes. We conclude that AFC can be performed on a single ovary, regardless of the presence, diameter, and weight of the CL and DF in zebu between 12 and 60 months old.","PeriodicalId":8393,"journal":{"name":"Arquivo Brasileiro De Medicina Veterinaria E Zootecnia","volume":" ","pages":""},"PeriodicalIF":0.4,"publicationDate":"2022-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44122606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of processed low-sodium Maasdam cheese 加工低钠马斯达姆干酪的研制
IF 0.4 4区 农林科学
Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2022-12-01 DOI: 10.1590/1678-4162-12569
L. Melo, F. R. Torres, J. Guimarães, M. Cortez
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