Cameron Clark
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View article: Data Augmentation and Interpolation Improves Machine Learning-Based Pasture Biomass Estimation from Sentinel-2 Imagery
Data Augmentation and Interpolation Improves Machine Learning-Based Pasture Biomass Estimation from Sentinel-2 Imagery Open
Accurate pasture biomass (PB) estimation is critical for tactical grazing management, yet traditional satellite-derived vegetation indices such as Normalised Difference Vegetation Index (NDVI) saturate when canopy density exceeds about 3 t…
View article: An AI-based hybrid model for dairy cattle heat tolerance phenotype
An AI-based hybrid model for dairy cattle heat tolerance phenotype Open
Extreme weather events pose substantial risks to dairy cattle production and welfare, with heat stress being a major disruptor. Current approaches for heat tolerance phenotype selection in dairy cattle primarily utilise statistical models.…
View article: Determinants of indiscriminate antimicrobial use in commercial chicken farms in Bangladesh and their impact on food safety and public health
Determinants of indiscriminate antimicrobial use in commercial chicken farms in Bangladesh and their impact on food safety and public health Open
Antimicrobial resistance (AMR), associated with irrational antimicrobial use (AMU) poses a significant health threat to both humans and animals. Thus, our research determined AMU patterns and their associated factors in Bangladeshi chicken…
View article: Medicated Meloxicam Pellets Reduce Some Indicators of Pain in Disbudded Dairy Calves
Medicated Meloxicam Pellets Reduce Some Indicators of Pain in Disbudded Dairy Calves Open
Disbudding is a husbandry practice that causes pain and discomfort to calves. As a prominent welfare concern, it is now standard practice for calves to be given analgesic treatment such as a nonsteroidal anti-inflammatory drug (NSAID) inje…
View article: Management Strategies for Napier Grass (Pennisetum purpureum Schumach cv Pakchong): Impact on Dry Matter Yield, Nutritive Characteristics and Cattle Growth
Management Strategies for Napier Grass (Pennisetum purpureum Schumach cv Pakchong): Impact on Dry Matter Yield, Nutritive Characteristics and Cattle Growth Open
Napier grass is widely used across the tropics and subtropics as a feed for dairy and beef cattle, but its quality is poor under current management with resultant poor animal productivity. Current management is focused on achieving high yi…
View article: Management Strategies for Napier Grass (Pennisetum purpureum Schumach): Impact on Dry Matter Yield, Nutritive Characteristics and Cattle Growth
Management Strategies for Napier Grass (Pennisetum purpureum Schumach): Impact on Dry Matter Yield, Nutritive Characteristics and Cattle Growth Open
Napier grass is widely used across the tropics and subtropics as a feed for dairy and beef cattle, but its quality is poor under current management with resultant poor animal productivity. Current management is focused on achieving high yi…
View article: Monitoring cattle liveweight using a mobile, in-paddock weigh platform: Validation, attendance and utility
Monitoring cattle liveweight using a mobile, in-paddock weigh platform: Validation, attendance and utility Open
Cattle liveweight (LW) monitoring is essential for the effective management of animal productivity and welfare, particularly in decision-making on farms. Traditional static weigh (SW) systems require animals to be moved to fixed scales, po…
View article: The impact of rainfall on beef cattle growth across diverse climate zones
The impact of rainfall on beef cattle growth across diverse climate zones Open
Genetics, animal husbandry, and the feedbase all impact cattle growth. Australia's cattle feedbase covers 40% of the continent and encompasses diverse climates and landscapes, making stocking rate decisions challenging. Of the factors cont…
View article: Review: Ruminant heat-stress terminology
Review: Ruminant heat-stress terminology Open
With increasing climate variability, there is a rise in the exposure to, and incidence of, ruminant heat stress (HS), increasing the requirement for focused research. As such, precise terminology is crucial to maintain effective communicat…
View article: The Impact of Abrupt and Fenceline-Weaning Methods on Cattle Stress Response, Live Weight Gain, and Behaviour
The Impact of Abrupt and Fenceline-Weaning Methods on Cattle Stress Response, Live Weight Gain, and Behaviour Open
The impact of abrupt (AB) and fenceline (FL) weaning methods on cattle stress response, live weight gain, and behaviour were determined across 14 days. Thirty-two cow–calf pairs were fitted with ear tag sensors (to continuously record beha…
View article: Milk consumption and behavior of calves in automated calf feeders as early indicators of weaning liveweight
Milk consumption and behavior of calves in automated calf feeders as early indicators of weaning liveweight Open
Modern intensive dairy farming relies on data to aid and prioritize management decisions made on farm. Decisions made early in an animal's life can have lasting effects on welfare, productivity, longevity, and profitability. Precision tech…
View article: Ruminant Production from Napier Grass (Pennisetum purpureum Schum): A Review
Ruminant Production from Napier Grass (Pennisetum purpureum Schum): A Review Open
Napier grass (Pennisetum purpureum Schumach) supports a significant proportion of animal production in subtropical and tropical regions, but its quality is low and when offered alone, results in low ruminant production. Shifting the manage…
View article: Napier grass (Pennisetum purpureum Schum) management strategies for dairy and meat production in the tropics and subtropics: yield and nutritive value
Napier grass (Pennisetum purpureum Schum) management strategies for dairy and meat production in the tropics and subtropics: yield and nutritive value Open
Napier grass ( Pennisetum purpureum Schumach) comprises up to 80% of the cattle diet in many tropical and subtropical regions and is used primarily by smallholder farmers. Despite the grass’s high yield, resulting animal productivity from …
View article: High genetic merit dairy heifers grazing low quality forage had similar weight gain and urinary nitrogen excretion to those of low genetic merit heifers
High genetic merit dairy heifers grazing low quality forage had similar weight gain and urinary nitrogen excretion to those of low genetic merit heifers Open
Climate variability and increasing drought events have become significant concerns in recent years. However, there is limited published research on body weight (BW) change of dairy heifers with different genetic merit when grazing on droug…
View article: Bovine heat stress management: current amelioration approaches and the case for a novel mitogenomic strategy
Bovine heat stress management: current amelioration approaches and the case for a novel mitogenomic strategy Open
An expansive body of literature is dedicated to addressing the multi-faceted issue of bovine heat stress. This review firstly evaluated existing knowledge about the acute bovine heat stress response. Despite these papers being comprehensiv…
View article: Field and in-silico analysis of harvest index variability in maize silage
Field and in-silico analysis of harvest index variability in maize silage Open
Maize silage is a key component of feed rations in dairy systems due to its high forage and grain yield, water use efficiency, and energy content. However, maize silage nutritive value can be compromised by in-season changes during crop de…
View article: Crowd sourcing remote comparative lameness assessments for dairy cattle
Crowd sourcing remote comparative lameness assessments for dairy cattle Open
Lameness assessments are rarely conducted routinely on dairy farms and when completed typically underestimate lameness prevalence, hampering early diagnosis and treatment. A well-known feature of many perceptual tasks is that relative asse…
View article: A deep learning model to forecast cattle heat stress
A deep learning model to forecast cattle heat stress Open
The accurate forecasting of feedlot cattle heat stress is pivotal to improving animal welfare and reducing the economic losses associated with heat events. This study investigated how autonomously recorded cattle behaviour datasets can be …
View article: Behavioral responses to cow and calf separation: separation at 1 and 100 days after birth
Behavioral responses to cow and calf separation: separation at 1 and 100 days after birth Open
Objective: The aim was to compare the behavioral response to full separation of cows and calves maintained together for 100 days or 24 h.Methods: Twelve Holstein-Friesian cow-calf pairs were enrolled into either treatment or industry group…
View article: AI Based Digital Twin Model for Cattle Caring
AI Based Digital Twin Model for Cattle Caring Open
In this paper, we develop innovative digital twins of cattle status that are powered by artificial intelligence (AI). The work is built on a farm IoT system that remotely monitors and tracks the state of cattle. A digital twin model of cat…
View article: Dairy cow and calf behavior and productivity when maintained together on a pasture-based system
Dairy cow and calf behavior and productivity when maintained together on a pasture-based system Open
Objective: We determined the impact of maintaining pasture-based dairy cows and calves together over 100 days on cow milk production, cow and calf behavior, and calf liveweight and carcass quality.Methods: Six Holstein-Friesian cows and th…