Microbial analysis of commercial samples of freshly frozen goat meat and those stored at - 12 degrees C for one week revealed high counts of aerobic bacteria, Bacillus cereus, Staphylococcus aureus and Streptococci. These counts increased with storage. Psychrophilic bacteria were higher in number than mesophiles. The counts of Salmonella were zero CFU/g in both freshly frozen and stock frozen meat. No yeast or moulds were encountered. Mouse tests of crude culture filtrate of B. cereus and preparations from meat samples confirmed the production of toxin.
Download full-text PDF |
Source |
---|
Front Vet Sci
January 2025
Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China.
The motility of sperm decreases following cryopreservation, which is closely associated with mitochondrial function. However, the alterations in mitochondrial metabolism after sperm freezing in goats remain unclear. This experiment aimed to investigate the impact of ultra-low temperature freezing on goat sperm's mitochondrial energy metabolism and its potential correlation with sperm motility.
View Article and Find Full Text PDFInt J Food Microbiol
February 2025
Instituto de Investigaciones para la Industria Química, Consejo Nacional de Investigaciones Científicas y Técnicas, Universidad Nacional de Salta (INIQUI-CONICET-UNSa), Av. Bolivia 5150, A4408FVY Salta, Argentina; Facultad Ciencias de la Salud, Universidad Nacional de Salta (UNSa), Av. Bolivia 5150, A4408FVY Salta, Argentina. Electronic address:
Listeria monocytogenes can contaminate refrigerated ready-to-eat foods, such as cheeses. Enterocins, with a strong listericidal effect, constitute a natural alternative to control this pathogen in food. To optimize their antimicrobial action in food matrices, bacteriocins can be immobilised in edible coatings through spray drying technology which allows the large-scale production of microcapsules of bioactive molecules.
View Article and Find Full Text PDFTheriogenology
December 2024
Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu, 611130, China.
Sperm cryopreservation is a complex process involving gene expression, protein synthesis, membrane stability, and metabolic adaptation. However, molecular alterations in sperm cryopreservation and the mechanisms defending against freezing damage remain poorly understood. This study investigates these changes and defense mechanisms using transcriptomics, proteomics, and metabolomics data.
View Article and Find Full Text PDFSci Rep
December 2024
Department of Animal Biotechnology, Reproductive Biomedicine Research Center, Royan Institute for Biotechnology, ACECR, Isfahan, Iran.
Excessive production of reactive oxygen species (ROS) during cryopreservation and post-thawing affects sperm quality and subsequent fertilizing capacity. Nanoparticles (NPs) with antioxidative properties can improve sperm function and male fertility. The aim of this study was to assess the effect of 100 µM ρ-coumaric acid (ρ-CA), 0.
View Article and Find Full Text PDFReprod Domest Anim
December 2024
Animal Reproduction, Gynaecology and Obstetrics, Artificial Breeding Research Centre (ABRC), ICAR-National Dairy Research Institute, Karnal, Haryana, India.
Bull fertility is a multi-factorial trait and is affected by many factors, such as nutrition, genetics, and epigenetics. Superior quality male germplasm with high genetic merit helps to improve the livestock production trait. To achieve the target of livestock production, the availability of superior male germplasm is a great concern.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!