Abstract:Open feedlots expose heifers to radiant load before summer peaks. We compared three shade geometries paired with elevated bedding pads in a replicated pen trial. Respiration rate, rectal temperature at peak solar angle, and daily gain were recorded for twenty-eight days. East-west oriented shade with side baffles lowered black-globe-adjusted heat indices more than simple roof extensions. Average daily gain improved modestly with fewer panting hours. Costing notes help producers prioritize retrofit sequences when steel prices fluctuate.
Abstract:Dual-purpose farms balance milk and calf sales under rainfall uncertainty. We modeled split-calving calendars against historical forage gaps and milk price seasonality for sixty-five households. Partial budgeting included labor for extra heatsynch visits and calf mortality risk. Farms that shifted twenty percent of calvings to the short rainy window improved cash flow stability without large herd expansion. Sensitivity analysis showed benefits hinge on access to conserved forage and timely artificial insemination services rather than genetics alone.
Abstract:Automated body condition scoring often fails under mixed natural and fluorescent lighting. We trained a compact model on hip and pin bone landmarks from phone video collected on eight farms. Augmentations simulated glare, shadows, and partial occlusion from headlocks. Compared with technician scores, the model achieved acceptable agreement on a five-point scale after farmer-guided recalibration each lactation stage. Deployment used on-device inference to limit data costs. Practical guidance covers camera height, lane markings, and when to reshoot clips after facility changes.
Abstract:Brucellosis control depends on coordinated animal vaccination and human risk communication. We developed short modules for community health workers covering pasteurized milk myths, abortion storms in cattle, and referral cues. Modules were piloted alongside district veterinary campaigns in two woredas. Post-training surveys showed improved symptom recognition and higher reported use of protective gloves during calving assistance. Integration with existing vaccination calendars increased attendance at joint human-animal health fairs. Sustainability will rely on refresher drills and simplified job aids in local languages.
Abstract:Heat-humidity stress and mudding increase environmental mastitis risk but are unevenly monitored on low-input farms. We combined public weather indices with monthly somatic cell trends from bulk tanks across forty-two villages. Simple thresholds triggered text alerts to encourage bedding refresh and milking hygiene checks. During the warm season, herds that acted on at least half of alerts showed slower cell count drift than matched controls. The approach avoids expensive barn sensors while keeping recommendations actionable for family labor routines.
Abstract:Tropical silage faces spoilage from aerobic instability after opening. Farmers co-designed paired farm trials comparing commercial homofermentative inoculants with a blended culture under identical packing density targets. Dry matter recovery, pH profiles, and aerobic heating after feed-out were tracked for forty-five days. Blended treatments improved stability in six of nine stacks when face management was consistent. Results emphasize that inoculant choice interacts strongly with face opening rates and shading of bunkers in humid climates.
Abstract:Smallholder cooperatives struggle to document batch movements for export-oriented buyers. We prototyped a permissioned ledger workflow tied to weighing slips and vaccination booklets in three associations. Cooperative staff entered events on low-cost tablets with intermittent connectivity. Auditors could verify chain-of-custody summaries without exposing private farm data. Pilots cut dispute resolution time and clarified premium eligibility rules. Lessons highlight training intensity and the need for backup paper trails when power is unreliable.
Abstract:Subclinical ketosis remains costly in pasture-based dairies where daily yarding is limited. We evaluated a lightweight rumen bolus that streams temperature and activity proxies to a farm gateway across twenty herds in the Eastern Cape. Alerts were tuned against weekly milk ketone spot checks and fresh cow health records for sixteen weeks. The system reduced missed cases relative to visual screening alone while keeping false positives manageable when farmers adjusted concentrate in response to early warnings. Findings support targeted supplementation protocols without adding heavy labor during calving peaks.
Abstract:Livestock farming plays a vital role in strengthening rural livelihoods and supporting the agricultural economy in India. However, livestock farmers often face difficulties in accessing timely technical information due to limitations in conventional extension systems. Mobile-based advisory services have emerged as an effective approach to improve information dissemination and support farm-level decision-making. The present study evaluated the effectiveness of the �Cattle Guru� mobile application in enhancing farmers� knowledge of improved cattle management practices. The study was conducted in Mirzapur district of Uttar Pradesh using an experimental before�after research design. A total of 80 cattle farmers were selected through a multistage random sampling technique and were provided access to the mobile application for three months. Data were collected through structured interviews and analysed using descriptive statistics and correlation analysis. The results revealed that 71.00% of respondents had a medium level of knowledge regarding improved cattle management practices, while 65.00% perceived the mobile application as moderately effective in providing advisory information. Correlation analysis indicated that mass media exposure (r = 0.58) and extension contact (r = 0.37) had significant positive relationships with farmers� knowledge levels. The findings suggest that the Cattle Guru mobile application can serve as a useful supplementary extension tool for improving farmers� access to livestock management information. Strengthening digital literacy and integrating ICT-based advisory platforms with conventional extension systems may further enhance their adoption and effectiveness among dairy farmers.
Abstract:Responsible antimicrobial use in dairy practice depends not only on regulation but also on practical farm level understanding. This study examines participatory extension workshops delivered through producer groups in Zimbabwe, focusing on treatment records, withdrawal periods, and alternatives to routine prophylactic use. Pre and post intervention assessments showed improved documentation behavior and more frequent veterinary consultation before antibiotic administration. Participants also demonstrated better awareness of residue risks and market penalties. The intervention was low cost and adapted to local language and management conditions. Results suggest that community centered extension can meaningfully strengthen antimicrobial stewardship while maintaining confidence in disease control strategies.