Resumo Objetivou-se estudar os achados epidemiológico e anatomopatológico de úlceras do abomaso tipo 1 e 2 em bovinos com diferentes comorbidades primárias. Um total de 201 animais; 40/201 (20%) eram bovinos jovens com idade inferior a dois anos e 161/201 (80%) eram bovinos adultos com idade superior a dois anos, os quais foram internados para atendimento clínico 152/201 (75,62%), 19/201 (9,45%) obstétrico, 17/201 (8,46%) para atendimento clínico-cirúrgico e 13/201 (6,47%) para diagnóstico anatomopatológico, sendo eutanasiados ou tiveram morte natural. O diagnóstico das úlceras foi baseado no exame post-mortem (análise macroscópica e histopatológica). O exame histopatológico foi realizado em 201 fragmentos de úlceras e classificado como tipo 1 ou do tipo 2. Destes, 193/201 (96,01%) corresponderam a úlceras tipo 1, das quais, 12/193 (5,97%) corresponderam a lesões subtipo 1a, 101/193 (50,25%) a subtipo 1b, 77/193 (38,31%) a subtipo 1c, 03/193 (1,49%) ao subtipo 1d, enquanto 08/201 (3,98%) foram úlceras tipo 2. As úlceras foram caracterizadas por processo inflamatório focal, focalmente extenso, multifocais ou difusos, principalmente por células mononucleares. Abomasite associada à mucosa ulcerada foi encontrada em 160/201 (79,60%). Em 26/201 (12,93%) a abomasite apresentava focos difusos de proliferação linfocítica multifocal por linfócitos atípicos. As comorbidades digestivas e reprodutivas foram observadas com maior frequência em bovinos com úlceras tipo 1 ou tipo 2. As úlceras focais subtipo 1b e úlceras multifocais subtipo 1a e 1b foram mais prevalentes. Além da presença de comorbidades, a maioria dos casos ocorrerem no período seco, associados à alimentação com maiores aportes de concentrados e silagens. Objetivouse Objetivou se primárias 20 animais 40201 40 40/20 20% (20% 161201 161 161/20 80% 80 (80% 152201 152 152/20 75,62%, 7562 75,62% , 75 62 (75,62%) 19201 19 19/20 9,45% 945 9 45 (9,45% obstétrico 17201 17 17/20 8,46% 846 8 46 (8,46% clínicocirúrgico cirúrgico 13201 13 13/20 6,47% 647 6 47 (6,47% natural postmortem post mortem análise histopatológica. histopatológica . histopatológica) Destes 193201 193 193/20 96,01% 9601 96 01 (96,01% 12193 12 12/19 5,97% 597 5 97 (5,97% 101193 101 101/19 50,25% 5025 50 25 (50,25% b 77193 77 77/19 38,31% 3831 38 31 (38,31% 1c c 03193 03 03/19 1,49% 149 49 (1,49% 1d d 08201 08 08/20 3,98% 398 3 98 (3,98% focal extenso mononucleares 160201 160 160/20 79,60%. 7960 79,60% 79 60 (79,60%) 26201 26 26/20 12,93% 1293 93 (12,93% atípicos prevalentes seco silagens 4020 4 40/2 (20 16120 16 161/2 (80 15220 15 152/2 756 75,62 7 (75,62% 1920 19/2 9,45 94 (9,45 1720 17/2 8,46 84 (8,46 1320 13/2 6,47 64 (6,47 19320 193/2 96,01 960 0 (96,01 1219 12/1 5,97 59 (5,97 10119 10 101/1 50,25 502 (50,25 7719 77/1 38,31 383 (38,31 0319 03/1 1,49 14 (1,49 0820 08/2 3,98 39 (3,98 16020 160/2 796 79,60 (79,60% 2620 26/2 12,93 129 (12,93 402 40/ (2 1612 161/ (8 1522 152/ 75,6 (75,62 192 19/ 9,4 (9,4 172 17/ 8,4 (8,4 132 13/ 6,4 (6,4 1932 193/ 96,0 (96,0 121 12/ 5,9 (5,9 1011 101/ 50,2 (50,2 771 77/ 38,3 (38,3 031 03/ 1,4 (1,4 082 08/ 3,9 (3,9 1602 160/ 79,6 (79,60 262 26/ 12,9 (12,9 ( 75, (75,6 9, (9, 8, (8, 6, (6, 96, (96, 5, (5, 50, (50, 38, (38, (1, 3, (3, 79, (79,6 12, (12, (75, (9 (6 (96 (5 (50 (38 (1 (3 (79, (12 (75 (79 (7
Abstract This study aimed to investigate the epidemiological and pathological findings of type 1 and 2 abomasal ulcers in cattle with different primary comorbidities. A total of 201 animals; 40/201 (20%) were young cattle under the age of two years and 161/201 (80%) were adult cattle over the age of two years, which were hospitalized for clinical care 152/201 (75,62%), 19/201 (9,45%) obstetric care, 17/201 (8,46%) surgical care and 13/201 (6,47%) for anatomopathological diagnosis, being euthanized or had natural death. The diagnosis of ulcers was based on the result of the post-mortem examination (macroscopic and histopathological analysis). Histopathological examination was performed on 201 fragments of ulcers and classified as type 1 or type 2. Of these, 193/201 (96.01%) corresponded to type 1 ulcers, of which 12/193 (5.97%) corresponded to subtype 1a lesions, 101/193 (50.25%) to subtype 1b, 77/ 193 (38.31%) to subtype 1c, 03/193 (1.49%) to subtype 1d, while 08/201 (3.98%) were type 2 ulcers. The ulcers were characterized by a focal, focally extensive, multifocal or diffuse inflammatory process, mainly by mononuclear cells. Abomasitis associated with ulcerated mucosa was found in 160/201 (79.60%). In 26/201 (12.93%) the abomasitis had diffuse foci of multifocal lymphocytic proliferation by atypical lymphocytes. Digestive and reproductive comorbidities were seen more frequently in cattle with type 1 or type 2 ulcers. The Subtype 1b focal ulcers and subtype 1a and 1b multifocal ulcers were more prevalent. In addition to the presence of comorbidities, most cases occur in the dry period, associated with feeding with higher amounts of concentrates and silages. 20 animals 40201 40 40/20 20% (20% 161201 161 161/20 80% 80 (80% 152201 152 152/20 75,62%, 7562 75,62% , 75 62 (75,62%) 19201 19 19/20 9,45% 945 9 45 (9,45% 17201 17 17/20 8,46% 846 8 46 (8,46% 13201 13 13/20 6,47% 647 6 47 (6,47% death postmortem post mortem macroscopic analysis. analysis . analysis) these 193201 193/20 96.01% 9601 96 01 (96.01% 12193 12 12/19 5.97% 597 5 97 (5.97% lesions 101193 101 101/19 50.25% 5025 50 25 (50.25% b 77 38.31% 3831 38 31 (38.31% 1c c 03193 03 03/19 1.49% 149 49 (1.49% 1d d 08201 08 08/20 3.98% 398 3 98 (3.98% extensive process cells 160201 160 160/20 79.60%. 7960 79.60% 79 60 (79.60%) 26201 26 26/20 12.93% 1293 93 (12.93% lymphocytes prevalent period silages 4020 4 40/2 (20 16120 16 161/2 (80 15220 15 152/2 756 75,62 7 (75,62% 1920 19/2 9,45 94 (9,45 1720 17/2 8,46 84 (8,46 1320 13/2 6,47 64 (6,47 19320 193/2 96.01 960 0 (96.01 1219 12/1 5.97 59 (5.97 10119 10 101/1 50.25 502 (50.25 38.31 383 (38.31 0319 03/1 1.49 14 (1.49 0820 08/2 3.98 39 (3.98 16020 160/2 796 79.60 (79.60% 2620 26/2 12.93 129 (12.93 402 40/ (2 1612 161/ (8 1522 152/ 75,6 (75,62 192 19/ 9,4 (9,4 172 17/ 8,4 (8,4 132 13/ 6,4 (6,4 1932 193/ 96.0 (96.0 121 12/ 5.9 (5.9 1011 101/ 50.2 (50.2 38.3 (38.3 031 03/ 1.4 (1.4 082 08/ 3.9 (3.9 1602 160/ 79.6 (79.60 262 26/ 12.9 (12.9 ( 75, (75,6 9, (9, 8, (8, 6, (6, 96. (96. 5. (5. 50. (50. 38. (38. 1. (1. 3. (3. 79. (79.6 12. (12. (75, (9 (6 (96 (5 (50 (38 (1 (3 (79. (12 (75 (79 (7