Food quantity and especially food quality are thought to be key factors driving reproductive changes in the house mouse, Mus domesticus, leading to outbreaks of house mouse populations in the Australian grain-growing region. Characteristic changes during an incipient mouse plague are an early start of breeding, a high proportion of females breeding at a young age and a prolonged breeding season. We conducted a large-scale food manipulation during an incipient mouse plague, which started with early breeding and relatively high spring numbers of mice. We measured background food availability in four farms throughout the study and conducted a food manipulation experiment from November to March in two of them. After harvest in December 100-200 kg/ha spilled grain remained in the stubble. This was depleted by March. In two treatment farms we added high-protein food pellets on a weekly basis between November and March and two farms served as controls. We measured changes in mouse numbers by capture-mark-recapture trappings and changes in reproduction by scoring embryos and recent placental scars at necropsy. Mouse numbers did not differ between treatments and controls. There were no differences in the litter size or the proportion of females breeding between treatments and controls. We observed the normal pattern of high litter size in spring and decreasing litter size towards the end of summer in treatments and controls. In all farms reproduction stopped in March. Mouse numbers were high but not at plague densities. Contrary to our prediction we did not observe food constraint affecting the reproduction of female mice. Our field experiment seems to rule out food quality as the driving factor for improved reproduction and formation of an outbreak of mice. We suggest that physiological mechanisms in mice might not enable them to take advantage of food with a high protein content in arid summers in southeastern Australian grain fields because of the lack of free-standing water.

Objective To evaluate housing survey data, describe the state of household infrastructure in Aboriginal communities in the Northern Territory (NT), and to discuss implications for health improvement for people in these communities. Design Quantitative analysis of survey data and qualitative analysis of the survey process. Setting All NT houses funded for repairs and maintenance through the Indigenous Housing Authority of the Northern Territory (IHANT). Main outcome measure Status of infrastructure necessary for four key “healthy living practices” (washing people, washing clothes and bedding, waste removal, and food storage and preparation). Results 3906 houses (79% of all houses funded by IHANT) were surveyed. Infrastructure components most frequently identified as not functional or not present were those required for the storage and preparation of food (62% not functional). The facilities required for personal hygiene and safe removal of human waste were not functional in 45%–46% of houses. Conclusions These findings highlight the significance of absent or non‐functioning household infrastructure as a potential contributory factor in the poor nutritional status and high rates of respiratory, skin and gastrointestinal infections in Indigenous communities. The environmental health and housing survey in the NT is an important tool for monitoring progress on addressing a key underlying determinant of the health of Indigenous people, and potentially for facilitating research aimed at gaining an improved understanding of the relationship of the household environment to health in Indigenous communities.

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