Fermentation characteristics and nutritive value of broiler litter ensiled with corn forage

Chaudhry, S.M.; Naseer, Zahid; Chaudhry, D.M.

doi:10.1016/0308-8146(93)90220-a

Cited by 10 publications

(8 citation statements)

References 19 publications

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“…The low concentrations of lactic acid compared with acetic acid could be attributed to the activity of heterofermentative lactic acid bacteria that tend to be dominant in silages with low WSC49 and produce, in addition to lactic acid, acetic acid, ethanol, mannitol and carbon dioxide. The low levels of lactic acid obtained compared with those reported by other workers57, 58, 61, 62 could be attributed to the type and nature (dry pods) of the ensiled material. However, the low concentrations of acids and the high pH values are not an indication that clostridial fermentation took place because no butyric acid typical of clostridial silages was detected 53…”

Section: Discussioncontrasting

confidence: 45%

“…Increasing the concentration of additives and/or extending the period of ensiling promoted the growth of more fermentative microorganisms and the production of higher quantities of fermentation acids necessary for stabilizing the silage. The growth of fermentative bacteria, especially lactic acid bacteria (LAB), depends on the availability of nitrogen57, 58 but the fact that the molasses–urea treatments produced more acids than the treatments with urea alone indicates that these microbes equally need a source of energy (ATP) for adequate multiplication and that this was provided by the fermentation of molasses to lactic acid. The drop in the concentration of acids in silages treated with 60 g kg −1 molasses, 5 g kg −1 urea on 9 g kg −1 molasses, 15 g kg −1 urea indicates that there is a threshold beyond which increases in the concentration of urea begin to play a negative role in the fermentation process, a view supported by Rasool and Gilani 59…”

Section: Discussionmentioning

confidence: 99%

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Ensilage as a means of reducing the concentration of cyanogenic glycosides in the pods of Acacia sieberiana and the effect of additives on silage quality

2004

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Cyanogenic glycosides are anti-nutritional components capable of liberating hydrogen cyanide, a respiratory poison that has been reported to be responsible for the death of livestock that browse some Acacia species containing these compounds. The objective of the study was to improve the nutritive value of the pods of Acacia sieberiana by reducing their contents of cyanogenic glycosides through ensiling, and to examine the influence of various levels of added molasses and urea on the aerobic stability of the silage. In experiment 1, laboratory silages, prepared by mixing ground pods with water in two ratios (60:40 and 40:60 w/w pod material:water), were put into 250 ml polythene bottles, ensiled for 4, 7, 14, 21, 28 or 35 days and analyzed for cyanide. In experiment 2, silages prepared as described above but using only one of the ratios (40:60), and with the addition of molasses (0, 30 or 60 g kg −1 ) and urea (0, 2.5 or 50 g kg −1 ) were included in a 3 × 3 factorial design, to study the effects of these additives on the stability of the silage. The period of ensilage was 14 days. In experiment 3, the concentrations of molasses and urea were modified to 0, 45 or 90 g kg −1 and 0, 7.5 or 15 g kg −1 , respectively, and the period of ensilage was extended to 45 days. The parent material contained 130.6 mg CN kg −1 DM and ensiling the material for 35 days reduced the concentration to 18.1 mg CN kg −1 DM. Moisture content at ensiling significantly (P < 0.001) affected the concentration of cyanide in the stored silages. Silages opened after 14 days were unstable irrespective of the use of additives. However those with combined urea and molasses exhibited a slow rate of deterioration and low fungal counts. Extending the period of ensiling to 45 days improved the aerobic stability of all the silages. The addition of urea significantly (P < 0.001) increased the pH, crude protein content, gross energy and fermentation acids while molasses treatment increased (P < 0.001) the lactic acid and ash content of the silages. Ensiling ground pods for 45 days was enough to reduce the cyanide content to non-toxic levels and produced a silage which was aerobically stable, while the inclusion of additives further improved the quality of the silages.

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Section: Discussioncontrasting

confidence: 45%

Section: Discussionmentioning

confidence: 99%

Ensilage as a means of reducing the concentration of cyanogenic glycosides in the pods of Acacia sieberiana and the effect of additives on silage quality

2004

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“…1983) and deep stacking (Strickler, 1977). Drying or ensiling poultry waste either alone or with green or dried roughage has been the most feasible and effective way of destroying pathogens (Chaudhry et al, 1993).…”

Section: Introductionmentioning

confidence: 99%

Preparation of Wastelage with Poultry Droppings and Oat Forage (Avena sativa) as a Feed for Cattle

Khatun

Khan

Moniruzzaman

2015

J. Environ. Sci. & Natural Resources

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Abstract:In this experiment, wastelage was prepared by ensiling Oat forage (Avena sativa) with fresh caged layer excreta (CLE) at varying proportions to investigate the feeding values of wastelage for cattle and protect environment from poultry droppings. Oat forage was mixed with 0, 20, 40 and 60% CLE and 5% molasses in each treatment on dry matter (DM) basis and ensiled in air tight plastic container under room temperature. After 56 days, ensiled mixtures were opened. All the wastelages had desirable aroma, yellowish green color, soft texture and were mould free. The pH, DM, crude protein (CP), crude fiber (CF), ether extra ct (EE), ash, nitrogen free extract (NFE), in vitro organic matter digestibility and metabolizable energy were significantly influenced by levels of CLE. The percentages of DM, CP and Ash (37.34, 18.95 and 14.45, respectively) were highest in wastelage with 60% CLE (p<0.05) followed by 40 and 20% CLE. The pH, CF and NFE were decreased linearly (p<0.05) from 4.5 to 3.90, 19.91 to 17.81% and 52.34 to 44.71%, respectively as the level of CLE increased from 0 to 60%. In all treatments, the EE content was not significantly influenced by the different level of CLE. The in vitro organic matter digestibility and metabolizable energy also increased significantly (p<0.05) with the increase of CLE and maximum value (65.5% and 9.10 MJ/kg DM, respectively) was obtained in wastelage with 40% CLE, which was statistically identical with 60% CLE. The results suggest that ensiling Oat forage with up to 60% CLE improve the feeding value of wastelage.

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“…Anaerobic digestion brings about fundamental transformation of non‐protein organic nitrogen in poultry wastes to microbial protein. The processing technique yields a by‐product which has been successfully used for animal production if utilized either alone or in combination with other feed ingredients (Harmon et al 1973; Watson 1985; Prior et al 1986; Chaudhry et al 1993; Jalil et al 2001). The present study suggests that protein generated from thermophilic anaerobic digestion of poultry wastes has good biological value and can be utilized in channel catfish diets without any deleterious effect.…”

Section: Discussionmentioning

confidence: 99%

“…The anaerobic thermophilic digestion process converts organic materials into usable by‐products such as biogas (Safley et al 1987), single cell proteins (microbial biomass) (Stafford et al 1979), feather‐lysate (Shih 1993), and dried digester sludge in the settlement (Steinsberger et al 1987). The digestion by‐product has been successfully used for animal production if utilized either alone or in combination with other feed ingredients (Watson 1985; Prior et al 1986; Chaudhry et al 1993; Paredes et al 1994; Jalil et al 2001). Paredes et al (1994) evaluated the nutritional quality of microbial biomass from anaerobic digestion of corn processing and observed that 20% of this product can be added as a source of protein to balance feed based on soy and fishmeal for carp.…”

mentioning

confidence: 99%

Nutritive Evaluation of Protein from Anaerobically Digested Poultry Wastes as a Dietary Ingredient Replacer for Channel Catfish, Ictalurus punctatus

Eya¹,

Ashame²,

Pomeroy³

2010

J World Aquaculture Soc

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Two experiments were conducted to determine the effects of feeding protein derived from anaerobically digested poultry wastes on the performance of channel catfish. In the first experiment, poultry waste protein (PWP) was used as a substitute protein source at 5, 10, 20, 30, and 40% levels on an isonitrogenous and isocalorific basis, and compared to a control (0% PWP) soybean meal/fish meal‐based practical diet. A digestibility trial was conducted with diets containing 0, 5, 10, and 20% PWP. There were no significant differences in growth performance, feed efficiency (FE), protein efficiency ratio (PER), and protein productive value (PPV) of channel catfish fed up to 20% substitution compared to the control diet. At replacement levels of 30 and 40%, there were significant (P < 0.05) decreases in growth performance, FE, PER, and PPV. The apparent absorption efficiency was generally high for all the essential amino acids. Although differences in apparent crude protein and phosphorous absorption efficiency were not significant (P > 0.05), the coefficients were highest for fish that received recovered protein at 10% dietary level. It is concluded that up to 20% of protein derived from thermophilic anaerobic digestion of poultry wastes can be substituted without negative effect on performance.

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Fermentation characteristics and nutritive value of broiler litter ensiled with corn forage

Cited by 10 publications

References 19 publications

Ensilage as a means of reducing the concentration of cyanogenic glycosides in the pods of Acacia sieberiana and the effect of additives on silage quality

Ensilage as a means of reducing the concentration of cyanogenic glycosides in the pods of Acacia sieberiana and the effect of additives on silage quality

Preparation of Wastelage with Poultry Droppings and Oat Forage (Avena sativa) as a Feed for Cattle

Nutritive Evaluation of Protein from Anaerobically Digested Poultry Wastes as a Dietary Ingredient Replacer for Channel Catfish, Ictalurus punctatus

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