2000
DOI: 10.1590/s0102-09352000000300019
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Economies of scale in the production of swine manure

Abstract: Manure production on grower/finisher swine operations in the United States was examined using data from 184 grower/finisher swine operations that participated in the United States National Animal Health Monitoring System's 1995 National Swine Study. Two methods were used: one, assuming that pigs produced 8.4% of their body weight in manure each day; another using the difference between feed fed and weight gained as a proxy variable to study manure production. Using this latter approach, a production function w… Show more

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Cited by 6 publications
(3 citation statements)
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“…A total of 12 million pigs were registered in Denmark (2020a). Considering an average of 4.1 kg of manure/swine per day (Losinger and Sampath, 2000), the total quantity of manure is approximately 18,000 million kilos per year. Therefore, wheat and barley straw are the LCF sources selected along with pig manure due to the aforementioned considerations.…”
Section: Availability Of Organic Waste In Denmarkmentioning
confidence: 99%
“…A total of 12 million pigs were registered in Denmark (2020a). Considering an average of 4.1 kg of manure/swine per day (Losinger and Sampath, 2000), the total quantity of manure is approximately 18,000 million kilos per year. Therefore, wheat and barley straw are the LCF sources selected along with pig manure due to the aforementioned considerations.…”
Section: Availability Of Organic Waste In Denmarkmentioning
confidence: 99%
“…The conclusion was that the pigs produce 8.4% of their body weight of waste per day, i.e. 84 kg of meat per 1000 kg of feed (Losinger & Sampath, 2000). A pregnant sow produces 11 kg of manure and urine per day., In lactation 18 kg per day and a male pig of 25-100 kg produces 6 kg per day.…”
Section: Introductionmentioning
confidence: 99%
“…For example, in 2019, Brazil had a livestock of approximately 215 million cattle and 41 million pigs, accounting, respectively, for 14 and 5% of the total cattle and swine livestock of the world [2]. Considering that cattle produce approximately 5.5 kg of dry mass manure per animal per day, with moisture contents varying from 13 to 75% [3], and an adult swine may produce 8.5% of its body weight Agronomy 2021, 11, 2467 2 of 16 in manure [4]. In 2019, Brazil may have produced more than one Megaton of dry mass cattle manure and, assuming an average of 25 kg per pig, another two Megatons of pig slurry per day.…”
Section: Introductionmentioning
confidence: 99%