Pork Production Systems

Maner, J. H.; Harris, D. L.

doi:10.1007/978-1-4615-3932-2

Cited by 7 publications

References 144 publications

(172 reference statements)

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Fecal free: Biology and authority in industrialized Midwestern pork production

Rich

2007

Agric Hum Values

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Ethnographically, ''fecal free'' is a lexical marker that invokes a form of industrialized swine husbandry used in large-scale confinement hog production. Using participant observation and interview research with Illinois contract hog producers, I explore the basis of this husbandry in the biological fragility of confinement hogs. Rather than biology being a simplistic ''state of nature,'' as it was in early neo-Marxist and populist studies of the 1970s, the frailty of confinement hogs suggests that industrial hog biology is a socially constructed state that justifies the use of contract-based hog production units and their coordination with animal processors. The frailty of confinement hogs results from their genetic characteristics, from the conditions in which they are raised, and from a production rationality that equates animal health with production efficiency. I detail the multiple-site methods, confinement technologies, and contract-based production organization required to raise biologically fragile hogs. And I link hog biology directly to the unequal contract-based relations between actors in industrial pork networks. My study emphasizes the relevance of ethnographic analyses within a political economy of agriculture by describing specific relations of inequalities in local and regional production units and distribution networks that form the building blocks of larger global agro-food systems.

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Fecal free: Biology and authority in industrialized Midwestern pork production

Rich

2007

Agric Hum Values

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Estimating spatial cattle and swine inventories from limited data

Bland

2002

Agricultural Systems

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Meta-analysis identifies the effect of dietary multi-enzyme supplementation on gut health of pigs

Ramani

Recharla

Hwang

et al. 2021

Sci Rep

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Gut health though is not well defined the role of gastrointestinal tract is vital if an animal must perform well. Apart from digestion, secretion, and absorption gut is harbored with consortium of microbiota which plays a key role in one’s health. Enzymes, one of the alternatives for antibiotics with beneficial effects on digestion and consistency of food and its effect on gut health. The effect of enzyme supplementation on gut health is not well established and the objective of this meta-analysis is to investigate if the enzyme supplement has influence on gut. This meta-analysis includes 1221 experiments which has single enzyme studies and or studies with multiple enzyme complexes but not challenged. The ratio of Lactobacillus and E. coli is related to ADFI which showed comparatively lower negative correlation coefficient, with − 0.052 and − 0.035, respectively, whose I2 values are below 25%, showing that these studies show a significantly lower level of heterogeneity. Correlation between villus height, crypt depth, their ratio and fatty acid is also assessed, and it showed that when the animal is supplemented with two enzyme complexes resulted in positive gut health rather than the single or more than two enzymes.

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Pork Production Systems

Cited by 7 publications

References 144 publications

Fecal free: Biology and authority in industrialized Midwestern pork production

Fecal free: Biology and authority in industrialized Midwestern pork production

Estimating spatial cattle and swine inventories from limited data

Meta-analysis identifies the effect of dietary multi-enzyme supplementation on gut health of pigs

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