14 documents found, page 1 of 2
Acute Leptospirosis Outbreak in Cattle: A Case Report
Paixão, Gustavo; Botelho‐Fontela, Sofia; Gandra, Filipe; Reis, JoanaLeptospirosis is a globally distributed re-emerging zoonotic disease caused by Leptospira species. In cattle, the clinical course varies from a subclinical-chronic infection, commonly found in adult animals, to a severe acute syndrome mostly found in calves. The present study reports an outbreak of acute leptospirosis, following favourable climacteric conditions. Seven affected farms were monitored. Clinical ob...
Immunocastration as Welfare Improvement in Outdoor Pig Production Systems
Botelho-Fontela, Sofia; Paixão, Gustavo; Payan-Carreira, Rita; Esteves, AlexandraRenowned for their high-quality meat from autochthonous breeds like the Iberian and Bísaro pigs, extensive pig farms prioritize animals’ welfare as a crucial factor in maintaining meat quality. In these systems, pig welfare results from the importance of providing abundant space, allowing for the full expression of the species’ behavior, and proper care. Immunocastration is a tool that might positively contribu...
Investigating associations between horse hoof conformation and presence of lame...
Mata, Fernando; Franca, Inês; Araújo, José Pedro; Paixão, Gustavo; Lesniak, Kirsty; Cerqueira, Joaquim LimaHoof trimming and shoeing determine the horse’s hoof shape and balance. Hoof conformation plays a crucial role in limb biomechanics and can consequently prevent or predispose to injury. This study investigated the relationship between the morphometric characteristics of the horse’s hoof, specifically, the dorsal hoof wall angle (DHWA), the coronet band circumference (CBC), and lameness in 73 horses categorised ...
The effects of different immunocastration protocols on meat quality traits and ...
Botelho-Fontela, Sofia; Paixão, Gustavo; Pereira-Pinto, Ricardo; Vaz-Velho, Manuela; Pires, Maria A.; Payan-Carreira, Rita; Patarata, LuísImmunocastration can be an alternative to surgical castration in Bísaro pigs when there is a need to keep animals on the farm until at least 8 months old. As an autochthonous breed, some particularities must be addressed when doing immunocastration, for which 3 different protocols were tested and two control groups were made with surgically castrated males (SC) and boars (Bo). Two protocols were made in prepube...
Seasonal variations on testicular morphology, boar taint, and meat quality trai...
Botelho-Fontela, Sofia; Ferreira, Sílvia; Paixão, Gustavo; Pereira-Pinto, Ricardo; Vaz-Velho, Manuela; Pires, Maria dos Anjos; Payan-Carreira, RitaTraditional outdoor pig farming is renowned for its emphasis on animal welfare and the production of highly valued, quality meat. While seasonality is known to impact certain animals, particularly those raised outdoors, there is a lack of research on Bísaro boars, a native Portuguese breed. This research study was conducted on a total of 20 male entire Bísaro pigs, reared in outdoor pens from 4 to 13 months old...
Effect of immunocastration on culled sows: a preliminary study on reproductive ...
Botelho-Fontela, Sofia; Paixão, Gustavo; Pereira-Pinto, Ricardo; Vaz-Velho, Manuela; Pires, Maria dos Anjos; Payan-Carreira, Rita; Patarata, LuísThe Bísaro pig is a Portuguese autochthonous breed greatly appreciated for its meat quality and is mainly reared outdoors. Immunocastration could be a solution to avoid undesirable pregnancies and boar taint in cull sows. The present study tested three immunocastration protocols (with Improvac®) according to their reproductive cycle. The first inoculation was performed two weeks after farrowing (IM1, n = 5), at...
Evaluation of gonadal macroscopic and microscopic morphometry reveals precociou...
Paixão, Gustavo; Esteves, Alexandra; Carolino, NunoBísaro pig (BP), like many other local breeds reared in extensive non-industrial systems, faces many constraints to comply with the EU welfare regulation, particularly regarding the restrictions to surgical castration. In order to adapt an immunocastration protocol to overtake this issue, a puberty timeline is needed. Using gonadal morphometry data from 91 young male BP, this study intended to characterize test...
Genetic parameters for reproductive and longevity traits in Bísaro pigs
Paixão, Gustavo; Martins, Ângela; Esteves, Alexandra; Payan-Carreira, Rita; Carolino, NunoThe Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless,no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a REML procedure applied to mixed linear models, 27,844 farrowing records, from 1995 to 2017, were used ...
Assessing pubertal age through testicular and epididymal histology in Bísaro pig
Paixão, Gustavo; Esteves, Alexandra; Carolino, Nuno; Pires, Maria dos Anjos; Payan-Carreira, RitaBísaro pig (BP) had grown in numbers in the last decade, representing one of the most important native Portuguese breed. This study aims to estimate the age of puberty in male BP through testicular and epididymal morphometry. Fifty-six pairs of testis and epididymis were collected from male BP ranging in age from 1 to 8 month-old. Samples were collected post-mortem (n=26) or from surgical castration (n=30), fro...
Genetic parameters for reproductive, longevity and lifetime production traits i...
Paixão, Gustavo; Martins, Ângela; Esteves, Alexandra; Payan-Carreira, Rita; Carolino, NunoThe Bísaro pig has gained popularity in recent years reflecting the success of the conservation program. Nevertheless, no data is available for animal genetic evaluation in this breed. Therefore, this study aimed to estimate genetic parameters and trends for reproduction related traits in Bísaro pigs. Through a restricted maximum likelihood procedure applied to mixed linear models, 27,844 farrowing records, fro...