Detection of clinical mastitis with the help of a thermal camera

Increasing dairy farm size and increase in automation in livestock production require that new methods are used to monitor animal health. In this study, a thermal camera was tested for its capacity to detect clinical mastitis. Mastitis was experimentally induced in 6 cows with 10 mu g of Escherichia coli lipopolysaccharide (LPS). The LPS was infused into the left forequarter of each cow, and the right forequarters served as controls. Clinical examination for systemic and local signs and sampling for indicators of inflammation in milk were carried out before morning and evening milking throughout the 5-d experimental period and more frequently on the challenge day. Thermal images of experimental and control quarters were taken at each sampling time from lateral and medial angles. The first signs of clinical mastitis were noted in all cows 2 h postchallenge and included changes in general appearance of the cows and local clinical signs in the affected udder quarter. Rectal temperature, milk somatic cell count, and electrical conductivity were increased 4 h postchallenge and milk N-acetyl-beta-D-glucosaminidase activity 8 h postchallenge. The thermal camera was successful in detecting the 1 to 1.5 degrees C temperature change on udder skin associated with clinical mastitis in all cows because temperature of the udder skin of the experimental and control quarters increased in line with the rectal temperature. Yet, local signs on the udder were seen before the rise in udder skin and body temperature. The udder represents a sensitive site for detection of any febrile disease using a noninvasive method. A thermal camera mounted in a milking or feeding parlor could detect temperature changes associated with clinical mastitis or other diseases in a dairy herd.

Towards the Breaking Day : An Ethnography of Belian Curing Rituals among the Luangans of Indonesian Borneo

Towards the Breaking Day is an ethnography of belian, an exceptionally lively tradition of curing rituals performed by the Luangans, a politically marginalized population of swidden cultivators of Indonesian Borneo. The principal purpose of the study is to explore the significance of belian rituals in practice. It asks what belian rituals do socially, politically, and existentially for particular people in particular circumstances. Departing from conventional conceptions of rituals as ethereal liminal or insulated traditional domains, it demonstrates the importance of understanding rituals as emergent within their specific historical and social settings, and highlights the irreducibility of lived reality to epistemological certainty. Each chapter of the book represents an analysis of a concrete ritual performance, exemplifying a diversity of ritual genres, stylistic modalities and sensual ambiences, ranging from low-keyed, habitual affairs to drawn-out, crowd-seizing community rituals and innovative, montage-like cultural experiments. The study is based on eighteen months of ethnographic fieldwork in non-Christian Central Luangan communities in which ritual and everyday life are complexly intermixed. It is intended as a contribution to the anthropological study of ritual and to the ethnography of Borneo religion in which the study of shamanistic life rituals has been overshadowed by a long-standing fascination with death and funerary rites.