scholarly journals Investigation of aflatoxin and metal concentrations in animal feeds and feed ingredients from Turkey

2021 ◽  
pp. 52-64
Author(s):  
Yasemin Bakircioglu Kurtulus ◽  
Dilek Bakircioglu ◽  
Muhammet Kuscu ◽  
Nukte Topraksever ◽  
Orhan Destanoglu
Keyword(s):  
Metal Concentrations ◽  
Feed Ingredients ◽  
Animal Feeds

Analysis of Animal Feed Ingredients and Soil Amendment Products Produced from Beef Cattle Manure for Selected Trace Metals Using Atomic Absorption Spectrophotometry

1980 ◽  
Vol 43 (11) ◽  
pp. 834-836 ◽  
Author(s):  
W. VAN WILLIS ◽  
AMER EL-AHRAF ◽  
DUTT V. VINJAMOORI ◽  
KHAIREY AREF
Keyword(s):  
Beef Cattle ◽  
Atomic Absorption ◽  
Soil Amendment ◽  
Animal Feed ◽  
Atomic Absorption Spectrophotometry ◽  
Metal Concentrations ◽  
Feed Ingredients ◽  
Absorption Spectrophotometry ◽  
Metal Levels ◽  
Replacement Product

Beef cattle manures have been converted to a water slurry and subjected to centrifugation, flocculution and drying to produce a silage replacement product (CI), a 20% protein powder from the centrifuge supernatant fluid (CII) and a soil amendment product (CIII). These products and the manure slurry were analyzed for their As, Cd, Cr, Cu, Fe, Hg, Mn, Ni, Pb and Zn content by atomic absorption spectrophotometry. Different sample mineralization techniques, metal recovery efficiencies and matrix effects were investigated. Metal concentrations increased in the products in the order of silage replacement, protein and soil amendment. Except for a high iron concentration, the silage replacement product (CI) had concentrations of these metals comparable to those for typical feedlot rations, and metal concentration in the protein fraction (CII) was three to six times higher as compared to the range of metal levels in CI; the soil amendment product (CIII) showed metal concentrations comparable to reported manure values. The effects of these metal concentrations on utility of the silage replacement and protein products as feed ingredients for animal feed rations is discussed.

scholarly journals Validation Study of a Lateral-Flow Immunoassay for Detection of Ruminant By-Product Material in Animal Feeds and Feed Ingredients: Performance-Tested MethodSM 010405

2005 ◽  
Vol 88 (6) ◽  
pp. 1583-1592 ◽  
Author(s):  
Frank Klein ◽  
Tony Lupo ◽  
Don Pielack ◽  
Mark Mozola ◽  
David Pinero ◽  
...  
Keyword(s):  
Neurological Diseases ◽  
Lateral Flow ◽  
Spongiform Encephalopathy ◽  
Feed Ingredients ◽  
Animal Feeds ◽  
Flow Test ◽  
Lateral Flow Test ◽  
By Products ◽  
Feed Mill ◽  
Ruminant Feed

Abstract An immunoassay with a lateral flow format has been developed for the detection of ruminant by-product material in animal feeds and feed ingredients. The test is designed for the analysis of animal feeds destined for feeding to ruminants to ensure that they do not contain ruminant by-products in violation of the ruminant-to-ruminant feed ban established by the U.S. Food and Drug Administration in 1997. This feed ban was established as a firewall against exposure of ruminant livestock animals to the prion agents responsible for neurological diseases such as bovine spongiform encephalopathy and scrapie. The test is designed for field use, e.g., at a feed mill, and yields a qualitative (presence/absence) result in 15–20 min. The objective of the study was to validate the lateral-flow test for detection of ruminant by-product material in a variety of finished animal feeds and feed ingredients. Results indicate that the test is specific for ruminant material and can detect as little as 1% ruminant material in these commodities.

A Mycological Survey on Feed Ingredients and Mixed Animal Feeds in Ghom Province, Iran

2007 ◽  
Vol 7 (1) ◽  
pp. 31-34 ◽  
Author(s):  
Ali Reza Khosravi ◽  
Mohammad Dakhili ◽  
Hojjatollah Shokri
Keyword(s):  
Feed Ingredients ◽  
Animal Feeds

Improved Turbidimetric Assay of Tylosin in Premix and Animal Feeds Not Containing Urea

1989 ◽  
Vol 72 (3) ◽  
pp. 454-456
Author(s):  
Mark R Coleman
Keyword(s):  
Sample Size ◽  
Alumina Column ◽  
Feed Ingredients ◽  
Low Level ◽  
Animal Feeds ◽  
Turbidimetric Method ◽  
Acidic Alumina ◽  
Turbidimetric Assay ◽  
Low Levels

Abstract A turbidimetric method is described for the determination of tylosin in premix and animal feeds not containing urea. This method includes several modifications of existing tylosin turbidimetric and AOAC plate assays to remove interferences from the feed, to concentrate low levels of tylosin, and to reduce the variability of the assay results. An acidic alumina column cleanup step has been incorporated into the method to remove interferences from feed ingredients. A disposable C18 column was used to concentrate the tylosin from low-level feeds, and the use of a larger analytical sample size has decreased the variability of the assay results. Average recoveries of tylosin added to chicken and swine rations were 98 and 101%, respectively.

scholarly journals Mycotoxin profiles of animal feeds in the central part of Thailand: 2015-2020

2021 ◽  
Vol 14 (3) ◽  
pp. 739-743
Author(s):  
Suppada Kananub ◽  
Prakorn Jala ◽  
Sudtisa Laopiem ◽  
Alongkot Boonsoongnern ◽  
Arsooth Sanguankiat
Keyword(s):  
Data Analysis ◽  
Rice Bran ◽  
Food Chain ◽  
Animal Health ◽  
Descriptive Statistics ◽  
Feed Ingredients ◽  
Mycotoxin Contamination ◽  
Animal Feeds ◽  
Chi Squared ◽  
Considerable Concern

Background and Aim: Mycotoxin contamination in animal feeds is of considerable concern because it can affect animal health systems. As a result of contamination in the food chain, humans can indirectly come into contact with mycotoxins. The present study aimed to present mycotoxin contamination patterns in animal feeds from 2015 to 2020 and elucidate associations between the type of feed and the type of ingredient. Materials and Methods: Data were summarized from the records of the Kamphaeng Saen Veterinary Diagnosis Center from 2015 to 2020, which comprised the analyses of aflatoxin (AFL), zearalenone (ZEA), T-2 toxin (T-2), fumonisin (FUM), and deoxynivalenol (DON) contamination in feed ingredients, complete feeds, and unclassified feeds. Descriptive statistics, Chi-squared tests, and Fisher's exact tests were used for data analysis. Results: ZEA was prevalent in animal feeds. The prevalence of each mycotoxin was constant from 2015 to 2020. Approximately 20-30% of samples were positive for AFL and FUM. The highest contamination was ZEA, which was found in 50% of the samples, and the occurrence of T-2 and DON was <10%. AFL significantly contaminated complete feeds more than feed ingredients. Feed ingredients were related to mycotoxin contaminations. The highest levels of AFL, FUM, and DON contamination occurred in 2017. The data in this year consisted mostly of soybean, corn, and rice bran. Conclusion: The number of positive samples of all five mycotoxins was constant from 2015 to 2020, but the occurrence of ZEA was the highest. Mycotoxins in feedstuffs are significantly related to the type of feed and the type of ingredient.

Evaluation of unconventional poultry feed in broilers

2019 ◽  
Vol 17 (1) ◽  
Keyword(s):  
Body Weight ◽  
Treatment Group ◽  
Blood Meal ◽  
Feed Consumption ◽  
Trial Period ◽  
Feed Ingredients ◽  
Treatment Groups ◽  
Broiler Production ◽  
Group I ◽  
Unconventional Feed

Background: Commercial broiler is a rapidly growing sector in Bangladesh. The broilers are supplied with the balanced ration prepared from a number of ingredients which are not available uniformly throughout the years. On the other hands, manufactured feeds are costly and inconvenient for the rural farmers. This study is undertaken to use unconventional feed ingredients aiming to decrease the broiler production cost. Method: A total of ninety-nine day- old broiler chicks (Hubbard) of either sex were used in this study in 3 treatment groups to assess processed unconventional feed item (shoti, blood meal, poultry dropping and molasses) on growth and profitability upon rearing for 60 days. Broilers were reared in dip litter system and were fed ad libitum on conventional and unconventional diet dividing into 3 treatment diets namely, treatment diet 1 (T1: Conventional as control), treatment diet 2 (T2: unconventional with blood meal and shoti), and treatment diet 3 (T3: unconventional with blood meal, shoti, poultry droppings and molasses) throughout the trial period. Treatment group 1 (T1) was used as control. Results: Broilers fed on control diet (conventional feed) achieved higher (P<0.01) body weight, while the broilers offered diets with the highest amount of unconventional feed had the lowest body weight. Increased (P<0.01) feed intake was observed during 21days and 49 days of age when broilers fed diets with the supplementation, but no significant differences were found among the groups in terms of feed consumption during 33 day of age. FCR differed significantly (P<.01) throughout the trial period with the broilers fed diets without supplementation of unconventional feed item had the superior FCR than the others. Mortality rate was 6.06%,9.09%, and 9.09% in treatment group I, treatment group II, and treatment group III respectively while live weights, feed conversion and feed consumption was unaffected by all the dietary groups with/without incorporation of unconventional feed item up to day 60 days of age. Statistically significant (P<0.01) decreased live weight was observed among the treatment groups in 60-day-old birds. Productivity and cost-benefit analysis were performed. Conclusion: Use of unconventional feed ingredients in broiler production greatly reduces the feed cost with little hampering the growth rate and hence, it is profitable for the farmers.

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