The aim of this trial was to determine the effect of a commercially available DFM containing three strains of Lactobacillus bacteria (MYLO®, Terragen Biotech, Australia) on the liveweight gain, ADG and FCR of steers in a feedlot. Lot feeding plays an essential role in maintaining and growing the domestic and international consumer market for quality beef year-round. Challenges in lot feeding include maximising animal health and productivity results amidst pressures to reduce antibiotic and chemical usage and minimise environmental impact. Direct fed microbials (DFMs) have emerged as a potential solution offering enhanced performance and improved health outcomes, without the risk of residues. The objective of this study is to investigate the impact of a DFM (MYLO®) on liveweight gain, average daily gain (ADG), feed conversion ratio (FCR) and health outcomes in feedlot cattle. ADG and FCR are key metrics representing the amount of daily weight gain and the amount [...]

Effect of Gestational Direct-Fed Microbials Supplementation on the Metabolic Profile in Periparturient Dairy Cows Orlando Ramirez-Garzon1, David Barber3, Loreto Meneses4, Martin Soust1, 5, 6 Simple Summary: This study at a commercial dairy farm in Queensland, Australia, evaluated the effects of a lactic acid bacteria-based direct-fed microbial (DFM) on periparturient dairy cows. A total of 150 Holstein cows were divided into control and DFM groups, with the latter receiving a basal diet supplemented with three strains of bacteria from the genus formerly known as Lactobacillus but recently assigned to the new Lentilactobacillus and Lacticaseibacillus genera. Blood samples were collected to assess metabolic profiles, revealing higher serum glucose, NEFA, and chloride levels in the DFM cows. The DFM cows showed higher pre- and post-calving glucose levels and greater body weight. While milk production was slightly higher in DFM cows, the milk protein percentage was higher in the control cows. Overall, DFM [...]

The Effect of a Direct Fed Microbial on Liveweight and Milk Production in Dairy CattleOrlando Ramirez-Garzon1, John I. Al-Alawneh2,3, David Barber4, Huanle Liu5, Martin Soust1 Terragen Biotech, Pty Ltd., Coolum Beach, QLD 4573, Australia; msoust@me.com GCP Veterinary Epidemiology Consulting, Pty Ltd., Brisbane, QLD 4069, Australia; jalawneh@gmail.com School of Veterinary Medicine, Murdoch University, Murdoch, WA 6150, Australia DairyNEXT Nutrition Consulting Services, Marburg, QLD 4346, Australia; qlddairynutrition@hotmail.com Accuredit Therapeutics, Suzhou 215000, China; elzedliu@gmail.com *Correspondence: orlandor@terragen.com.au Simple Summary: This study aimed to assess the impact of supplementing Lacticaseibacillus- and Lentilactobacillus-based direct fed microbials (DFMs) on dairy cow productivity in commercial settings. Two groups of 75 cows each were selected from a milking herd and managed separately. Both groups were fed the same diet, but one group received a daily supplement of DFM top dressed on the feed. The cows that received the DFM supplement showed increased liveweight mobilization and produced more milk, [...]

Correlation between gastrointestinal morphological changes, enteric microbiota, and changes in live weight in dairy calves John Alawneh 1, Timothy Olchowy2, Mohammad Mahmudul Hassan1, Rachel Allavena1, Martin Soust3, Rafat Al Jassim4 1 School of Veterinary Science, The University of Queensland, Gatton, Queensland 4343, Australia 2 Faculty of Veterinary Medicine, University of Calgary, Calgary, Alberta T3R 1J3, Canada 3 Martin Soust & Co. Pty. Ltd. and GR International Pty. Ltd., Melbourne 3004, Australia 4 Queensland Alliance for Agriculture and Food Innovation, St Lucia, Queensland 4072, Australia Abstract This study aimed to quantify the association between fecal microbiota biomarkers, gastrointestinal tract morphology, and ADG of dairy calves from birth until weaning in response to feeding a direct-fed microbial (DFM) supplement as part of their milk diet. We randomly assigned 44 newborn Holstein-Friesian calves to treatment (TRT) and control (CON) groups. The TRT group calves received a once-daily dose of Lacticaseibacillus- and Lentilactobacillus-based DFM liquid formulation. Four genera, Prevotella7, Succiniclasticum, Terrisporobacter, and Carnobacterium, were enriched and identified as biomarkers of low ADG. [...]