S. Godden
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View article: Relationships between method used for bedding processing and presence of mastitis and nonmastitis pathogens in ready-to-use recycled manure solids bedding on Midwest dairy farms
Relationships between method used for bedding processing and presence of mastitis and nonmastitis pathogens in ready-to-use recycled manure solids bedding on Midwest dairy farms Open
Field studies have examined how processing methods affect mastitis pathogen levels in ready-to-use (RTU) recycled manure solids (RMS), but few have assessed their impact on nonmastitis pathogens. This cross-sectional study investigated ass…
View article: Phylogenomic associations among methicillin-resistant <i>Staphylococcus aureus</i> isolates derived from pets, dairies, and humans
Phylogenomic associations among methicillin-resistant <i>Staphylococcus aureus</i> isolates derived from pets, dairies, and humans Open
Methicillin resistance in Staphylococcus aureus is conferred by the mobile genetic element, staphylococcal cassette chromosome mec (SCC mec ). Methicillin-resistant Staphylococcus aureus (MRSA) can transmit among animals and humans, leadin…
View article: Efficacy of a stabilized liquid potassium sorbate preservative to prevent bacterial proliferation in bovine colostrum and milk
Efficacy of a stabilized liquid potassium sorbate preservative to prevent bacterial proliferation in bovine colostrum and milk Open
This study aimed to describe the effect of a potassium sorbate preservative on bacterial proliferation in bovine colostrum and milk, and on colostrum pH and IgG concentrations, when stored at refrigeration (RF) or room temperature (RT) for…
View article: U.S. and Canadian veterinarians’ attitudes toward and experiences with social housing of dairy calves
U.S. and Canadian veterinarians’ attitudes toward and experiences with social housing of dairy calves Open
While most dairy calves are housed individually during the pre-weaning period in the United States and Canada, there is increased interest in various forms of social housing. As veterinarians are trusted advisors in the decision making of…
View article: Spiking colostrum replacement powder directly into maternal colostrum II: Impacts on behavior and well-being of neonatal dairy calves
Spiking colostrum replacement powder directly into maternal colostrum II: Impacts on behavior and well-being of neonatal dairy calves Open
Mixing unreconstituted (dry) colostrum replacer (CR) powder directly into maternal colostrum (MC) prior to feeding could be problematic if the final mixture has an excessively high osmolality, resulting in a decreased abomasal emptying ra…
View article: Randomized clinical trial evaluating the effects of the administration of acidogenic boluses on the day prior to dry off on dairy cow welfare
Randomized clinical trial evaluating the effects of the administration of acidogenic boluses on the day prior to dry off on dairy cow welfare Open
Voluminous milk production at dry off has been previously associated with increased udder pressure, discomfort and pain in the early dry period. The use of acidogenic boluses has been described as beneficial in helping decrease milk prod…
View article: Controlled field study investigating effects of 2 methods of enriching moderate-quality maternal colostrum on transfer of passive immunity and well-being of neonatal dairy calves
Controlled field study investigating effects of 2 methods of enriching moderate-quality maternal colostrum on transfer of passive immunity and well-being of neonatal dairy calves Open
Enriching low- or moderate-quality maternal colostrum (MC) by directly adding dry commercial colostrum replacement (CR) powder into MC is convenient, but it is unknown whether this may increase osmolality of the CR-MC mixture to levels tha…
View article: Comparison of a machine learning model with a conventional rule-based selective dry cow therapy algorithm for detection of intramammary infections
Comparison of a machine learning model with a conventional rule-based selective dry cow therapy algorithm for detection of intramammary infections Open
We trained machine learning models to identify IMI in late-lactation cows at dry-off to guide antibiotic treatment, and compared their performance to a rule-based algorithm that is currently used on dairy farms in the United States. We con…
View article: Relationship between facility type and bulk tank milk bacteriology, udder health, udder hygiene, and milk production on Vermont organic dairy farms
Relationship between facility type and bulk tank milk bacteriology, udder health, udder hygiene, and milk production on Vermont organic dairy farms Open
The primary objective of this cross-sectional observational study was to determine whether bulk tank milk quality, udder health, udder hygiene, and milk production outcomes were associated with facility type on organic dairies. A secondary…
View article: Confirmed bacteriological diagnosis and cure of nonsevere gram-positive clinical mastitis cases enrolled in a randomized clinical trial based on results of on-farm culture
Confirmed bacteriological diagnosis and cure of nonsevere gram-positive clinical mastitis cases enrolled in a randomized clinical trial based on results of on-farm culture Open
Our objectives were to describe the confirmed bacteriological diagnosis of mastitis pathogens cultured from cases of nonsevere clinical mastitis (CM) identified as gram-positive (GP) using on-farm culture and to compare differences in bact…
View article: randomized equivalence study evaluating the efficacy of two commercially available teat sealants in dairy cows
randomized equivalence study evaluating the efficacy of two commercially available teat sealants in dairy cows Open
Use of internal teat sealants is common in the U.S. to prevent new intramammary infections during the dry period. The objective of this study was to compare the efficacy of a new internal teat sealant containing bismuth subnitrate (SOa) to…
View article: Exploring associations between the teat apex metagenome and <i>Staphylococcus aureus</i> intramammary infections in primiparous cows under organic directives
Exploring associations between the teat apex metagenome and <i>Staphylococcus aureus</i> intramammary infections in primiparous cows under organic directives Open
The primary objective of this study was to identify associations between the prepartum teat apex microbiome and the presence of Staphylococcus aureus intramammary infections (IMI) in primiparous cows during the first 5 weeks after calving.…
View article: Methods of processing recycled manure solids bedding on Midwest dairy farms II: Relationships between bedding characteristics and bedding bacterial count
Methods of processing recycled manure solids bedding on Midwest dairy farms II: Relationships between bedding characteristics and bedding bacterial count Open
The first objective of this study was to identify bedding characteristics associated with bedding bacterial count (BBC) in ready-to-use (RTU) recycled manure solids (RMS). The second objective was to explore the association between process…
View article: Randomized clinical trial evaluating the effects of administering acidogenic boluses at dry-off on udder health, milk yield, and herd removal
Randomized clinical trial evaluating the effects of administering acidogenic boluses at dry-off on udder health, milk yield, and herd removal Open
Acidogenic boluses can mitigate potential negative effects of high milk yield at dry-off on udder health. This randomized controlled trial aimed to investigate the effect of administering acidogenic boluses at dry-off on dry period intrama…
View article: The impact of kit, environment and sampling contamination on the observed microbiome of bovine milk
The impact of kit, environment and sampling contamination on the observed microbiome of bovine milk Open
Contaminants can easily outnumber bacteria that originate within the milk itself, milk microbiome research currently suffers from a critical knowledge gap; namely, does non-mastitis bovine milk contain a native microbiome? In this study, w…
View article: Exploring associations between the teat apex metagenome and<i>Staphylococcus aureus</i>intramammary infection risk in primiparous cows under organic directives
Exploring associations between the teat apex metagenome and<i>Staphylococcus aureus</i>intramammary infection risk in primiparous cows under organic directives Open
The primary objective of this study was to identify associations between teat apex microbiome and Staphylococcus aureus intramammary infection (IMI) risk in primiparous cows during the first 5 weeks after calving. We performed a case-contr…
View article: A randomized non-inferiority study evaluating the efficacy of two commercially available teat sealants in dairy cows
A randomized non-inferiority study evaluating the efficacy of two commercially available teat sealants in dairy cows Open
The primary objective of this study was to compare the efficacy of a new internal teat sealant (ShutOutTM, Merck Animal Health, Madison, NJ) (SO) to the current U.S. industry leader (Orbeseal®, Zoetis, Parsippany, NJ) (ORB). This comparis…
View article: Investigation of the relationship between manure processing method and levels of mastitis pathogens in recycled manure solids bedding on Midwest dairy farms
Investigation of the relationship between manure processing method and levels of mastitis pathogens in recycled manure solids bedding on Midwest dairy farms Open
While many dairies use green (GRN) recycled manure solids (RMS) bedding, some first process slurry through an anaerobic digester (DIG), while others have adopted secondary (SEC) processing methods such as mechanical composters (COM), hot …
View article: Pilot study: Refining a culture-guided selective dry cow therapy program to enhance antimicrobial stewardship on dairy farms
Pilot study: Refining a culture-guided selective dry cow therapy program to enhance antimicrobial stewardship on dairy farms Open
Selective dry cow therapy (SDCT) programs typically use either milk culture or algorithm methods to identify cows with a high risk of infection, and thereby warranting antimicrobial therapy (AMX) at dry off (DO). Multiple studies have demo…
View article: Investigation of the relationship between manure processing method and presence of M. avium subsp. paratuberculosis and Salmonella spp. in recycled manure solids bedding on Midwest dairy farms
Investigation of the relationship between manure processing method and presence of M. avium subsp. paratuberculosis and Salmonella spp. in recycled manure solids bedding on Midwest dairy farms Open
While many dairies use green (GRN) recycled manure solids (RMS) bedding, some first process slurry through an anaerobic digester (DIG), while others have adopted secondary (SEC) processing methods such as mechanical composters (COM), hot …
View article: Randomized clinical trial evaluating the effects of the administration of acidogenic boluses at dry off on udder health
Randomized clinical trial evaluating the effects of the administration of acidogenic boluses at dry off on udder health Open
High milk production at dry off is a risk factor for intramammary infections (IMI) postpartum due to milk leakage and impaired formation of the keratin plug during the dry period. The use of acidifying agents at dry off can induce a temp…
View article: Negatively controlled trial investigating the effects of dry cow therapy on clinical mastitis and culling in multiparous cows
Negatively controlled trial investigating the effects of dry cow therapy on clinical mastitis and culling in multiparous cows Open
Blanket dry cow therapy (DCT) is a major contributor to overall antibiotic usage on dairy farms in the United States. With low prevalence of intramammary infections at dry-off in US herds today, alternative DCT approaches have been the foc…
View article: Methods of processing recycled manure solids bedding on Midwest dairy farms I: Associations with bedding bacteria counts, milk quality, udder health and milk production
Methods of processing recycled manure solids bedding on Midwest dairy farms I: Associations with bedding bacteria counts, milk quality, udder health and milk production Open
This observational study investigated the relationships between method of processing recycled manure solids (RMS) bedding and 1) bacteria counts in RMS bedding, 2) bacteria counts in bulk tank milk, and 3) udder health and milk production.…
View article: A randomized clinical trial evaluating the effects of administration of acidogenic boluses at dry-off on rumination and activity behavior in the 14 subsequent days
A randomized clinical trial evaluating the effects of administration of acidogenic boluses at dry-off on rumination and activity behavior in the 14 subsequent days Open
Elevated milk production at dry-off can lead to increased udder pressure and, in turn, increased stress due to pain and discomfort, affecting natural behaviors. Administering acidogenic boluses at dry-off acts by inducing temporary and mil…
View article: Invited review: Selective treatment of clinical mastitis in dairy cattle
Invited review: Selective treatment of clinical mastitis in dairy cattle Open
Treatment of clinical mastitis (CM) and use of antimicrobials for dry cow therapy are responsible for the majority of animal-defined daily doses of antimicrobial use (AMU) on dairy farms. However, advancements made in the last decade have …
View article: Selective dry-cow therapy can be implemented successfully in cows of all milk production levels
Selective dry-cow therapy can be implemented successfully in cows of all milk production levels Open
Antibiotic stewardship on dairy farms can be heightened through the implementation of selective dry-cow therapy (SDCT). However, some producers are concerned that this practice may be related to poor udder health outcomes in cows with high…
View article: Selective treatment of nonsevere clinical mastitis does not adversely affect cure, somatic cell count, milk yield, recurrence, or culling: A systematic review and meta-analysis
Selective treatment of nonsevere clinical mastitis does not adversely affect cure, somatic cell count, milk yield, recurrence, or culling: A systematic review and meta-analysis Open
Treatment of clinical mastitis (CM) contributes to antimicrobial use on dairy farms. Selective treatment of CM based on bacterial diagnosis can reduce antimicrobial use, as not all cases of CM will benefit from antimicrobial treatment, e.g…
View article: Diagnosing Intramammary Infection: Meta-Analysis and Mapping Review on Frequency and Udder Health Relevance of Microorganism Species Isolated from Bovine Milk Samples
Diagnosing Intramammary Infection: Meta-Analysis and Mapping Review on Frequency and Udder Health Relevance of Microorganism Species Isolated from Bovine Milk Samples Open
Matrix-assisted laser desorption/ionization time-of-flight (MALDI-TOF) mass spectrometry provides accurate species-level identification of many, microorganisms retrieved from bovine milk samples. However, not all those microorganisms are p…
View article: Improving farm-level antimicrobial stewardship benchmarks by reporting antimicrobial use within the context of both the magnitude of disease pressure and the outcome of therapy
Improving farm-level antimicrobial stewardship benchmarks by reporting antimicrobial use within the context of both the magnitude of disease pressure and the outcome of therapy Open
This manuscript explores a method of benchmarking antimicrobial use within the context of farm level therapeutic incidence (a proxy for disease incidence), and the outcome of that therapy. This is reported both within the same farm over ti…