Effects of Supplementary Levels of Deep-stacked Broiler Litter on Digestibility, Dry Matter Intake, and Nitrogen Balance by Male Spotted Deer(Cervus Nippon)
01 Jan 2003-Journal of Animal Science and Technology (Korean Society of Animal Sciences and Technology)-Vol. 45, Iss: 1, pp 79-86
TL;DR: It is suggested that up to 30% of broiler litter may be fed to male deer without deleterious effects on deer performance.
Abstract: To determine nutritive value and suitability of deep-stacked broiler litter for deer, the influence of supplementary levels of broiler litter on digestibility, dry matter intake, and nitrogen balance was investigated in male spotted deer ( Cervus nippon ) fed a commercial mixed(complete) ration. The deep-stacked and ground broiler litter was supplemented at the level of 0%(Control), 15%(T1) and 30%(T2) on the basis of fresh matter to the mixed ration. All treatments had similar palatability at about 3% body weight of dry matter intake. Dry matter digestibility was highest in Control and lowest in T2(P<0.05). Digestibility of crude protein was lowest(P<0.05) in T2. Dry matter and digestible dry matter intake was similar in all treatments. Daily body weight gain was not affected by treatments. Feeding 15 or 30% of broiler litter to male deer resulted in similar nitrogen intake, fecal nitrogen excretion and daily nitrogen retention(g/d), compared with feeding Control. These results suggest that up to 30% of broiler litter may be fed to male deer without deleterious effects on deer performance. (
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TL;DR: In this article , the authors conducted a search and review of contemporary scientific publications from open sources, including publications and data from Internet portals, Web of Science, Scopus scientometric databases, websites of patent offices, libraries, and reading rooms.
Abstract: Animal waste can serve as a raw material source for feed preparation, and can also be used, after appropriate processing, as fuel, fertilizer, biogas, and other useful products. In addition, the practical use of these wastes eliminates their mandatory disposal. Recycling animal waste is a feature of the circular economy, leading to environmental sustainability. In this regard, we conducted a search and review of contemporary scientific publications from open sources, including publications and data from Internet portals, Web of Science, Scopus scientometric databases, websites of patent offices, libraries, and reading rooms. It has been found that animal by-products are desirable for use in combination with vegetable protein sources. The 15 most relevant types of animal waste and their use are indicated based on current scientific publications. Moreover, 13 types of feed of animal origin, along with their purposes and descriptions, are also identified. Current scientific publications and research on the processing of insects into feed; the use of bird droppings, meat, and bone and bone meal; and the processing of seafood waste, bird waste, and eggshells are reviewed. As a result, firstly, the most important types of technological equipment involved in animal waste processing technologies, particularly devices for drying, grinding, and mixing, are analyzed and discussed. Secondly, technologies for processing waste into useful products of animal origin are analyzed and discussed.
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TL;DR: The nutritional value of a pelleted fattening concentrate mixture, in which heat-sterilized poultry litter (PL) was included at rates of 0, 15, 25 and 35%, was studied as discussed by the authors.
Abstract: The nutritional value of a pelleted fattening concentrate mixture, in which heat-sterilized poultry litter (PL) was included at rates of 0, 15, 25 and 35%, was studied. A digestion and nitrogen balance trial was carried out with rams, and a feeding trial was carried out with intact male cattle from the age of 8 mo to slaughter at 14 mo.Digestibility of crude protein was related inversely to PL content of the diet. This decrease in digestibility was not accompanied by a decrease in the quality of the protein digested.Gross and digestible energy contents of the diets were related inversely to their PL content. There were no significant differences in blood urea concentration. A concentrate mixture containing 1% urea but otherwise similar to the control, was included in the feeding trial.There were no significant differences in rate of live-weight or carcass gain between treatments. The differences in degree of fatness of the carcasses tended to be related inversely to PL% in the diet, but they were small and reached significance only with the extreme treatments. Feed intake on PL-containing diets was higher than on the control diet, but feed conversion efficiency was impaired when the proportion of PL exceeded 25%. No significant correlations were found between total volatile fatty acids in rumen liquor and daily live-weight gain.
39 citations
01 Jan 1980
TL;DR: In this paper, the authors estimate that approximately 300 million metric tons of dry waste are produced per year in the United States of America, of which 52 million metric ton were collectable.
Abstract: Animal wastes represent one of the most important under-utilized resources and the quantity produced per year is very large. For example, in the United States the quantity has been estimated at approximately 2000 million metric tons69. Assuming the wastes contain 15% dry matter, the annual dry matter yield would be approximately 300 million metric tons. Van Dyne and Gilbertson67 estimated that 112 million tons of dry waste were produced in 1974, of which 52 million tons were collectable (Table 1).
37 citations
TL;DR: The main uses of animal wastes are as sources of plant nutrients (fertilizer) and animal nutrients (feedstuffs). The wastes are more valuable when used as feedstuffs than as fertilizer as discussed by the authors.
35 citations
TL;DR: The effects of substituting broiler litter for supplemental corn on feed intake and digestion by Holstein steer calves consuming low-quality grass hay were determined and NDF digestibility was similar among treatments.
30 citations
TL;DR: Several factors, such as socio-religious acceptability of animal excreta, quality of wastes available for recycling, processing methods applicable etc., which limit their use in animal rations, are discussed.
25 citations