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Articles by Y. Ameyapoh
Total Records ( 4 ) for Y. Ameyapoh
  T. Bouassi , Y. Ameyapoh , V. Van Hamme , K. Anani , Y. Adjrah , E. Decuypere , M. Gbeassor and K. Tona
  Background: The ban of antibiotics use as growth factors since 2006 affects animal performance and economical viability of farms. Several alternatives including incorporation of organic acids in feed or drinking water in order to improve productivity were studied. Objective: The objective of this study is to mix ACIDAL with drinking water of hens in order to improve productivity. Methodology: The experiment was carried out with 360 ISA Brown hens (22-44 weeks of age), allocated to 3 groups (control, Aci 1 and Aci 2) of 120 birds each. The three groups received, respectively in drinking water 0, 1 and 2 mL of ACIDAL L–1. Prior to start, every 4 weeks and at the end of the treatments, samples of chicken droppings according to each group were collected and used to determine total Streptococcus and Escherichia coli and to check the presence of Salmonella. During treatments, amount of water consumption, feed intake, body weight, egg weight and egg component weights were recorded weekly. Results: Eggs produced were collected daily and every 2 weeks, the litter quality was assessed. Mixing of ACIDAL with drinking water of laying hens reduced significantly the number of total bacteria, eliminated completely Salmonella in the droppings, decreased feed intake and improved egg weights and body weight compared to control group witch litter was significantly wetter and more tendentiously crusty compared to those of treated groups. Conclusion: In opposite, there is no effect on water consumption, mortality rate, egg laying rate and ratios of albumen, yolk and shell.
  G.K. Mlaga , K. Agboka , K. Attivi , O. Oke , E. Osseyi , Y. Ameyapoh , A. Teteh , Y. Adjrah , O. Onagbesan and K. Tona
  Background and Objective: There has been a search for non-conventional feedstuffs such as maggot meal as a result of scarcity and high cost of fishmeal. The objective of this study was to evaluate the effect of the black soldier fly maggot meal as a protein source on meat quality of broiler chickens. Materials and Methods: A total of 225 broiler chicks (Ross 308) were assigned to five treatment groups of varying dietary inclusion levels of fish and maggot meal; 100% fishmeal and 0% maggot meal (control group) (A0), 75% fishmeal: 25% maggot meal (A25), 50% fishmeal: 50% maggot meal (A50), 25% fishmeal: 75% maggot meal A(75) and 100% maggot meal and 0% fishmeal (A100). At the 57th day, 6 chickens per replicate were randomly selected and slaughtered to evaluate the carcass yield and meat quality. Results: Results showed that there was a reduction of breast water loss in group A100 compared to the other batches (p<0.05). The maggot meal increased the yield and ultimate pH (pHu) of the breast of A100 group (p<0.05). In addition, meat protein levels were also higher in the treated groups than that of the control group (p<0.001). In contrast, thigh yield, abdominal fat and mineral contents were not affected by the dietary inclusion of maggot meal. Conclusion: Broilers fed 100% maggot meal obtained the best meat characteristics. This could be attributed to the high-quality protein contained in the Black Soldier fly (Hermetia illucens) maggot meal. It can be concluded that maggot meal is a non-conventional protein source which can be used as fish meal replacer in broiler diet.
  T. Bouassi , D. Libanio , M.D. Mesa , A. Gil , K. Tona and Y. Ameyapoh

Objective: The objective of this study was to evaluate the growth performance, some haematological and serum immunological and biochemical parameters of laying hens supplemented with whey (LW) and ACIDAL®ML mixed in drinking water. Materials and Methods: Seven hundred and fifty Isa Brown hens’ chicks were randomly assigned to five treatments and five replicates of 150 birds each. The birds were reared for 36 weeks. The treatments were administered in the drinking water at dosages: 250 mL L1 of LW (Lacto 25) and 500 mL L1 of LW (Lacto 50) and 1 mL L1 of ACIDAL®ML (Aci). A positive control group (T+) was treated with 500 mg L1 of Tétracolivit (antibiotic). The negative control group (T-) was offered drinking water only. During experimental period, feed intake, body weight, average daily gain, feed conversion ratio and mortality were recorded. At weeks 12, 24 and 36, blood samples were collected from 10 birds of each treatment group for determination of total proteins, albumin, triglycerides, cholesterol, immunoglobulin (IgA and IgG) concentration and haematological parameters. Results: Supplementation of ACIDAL®ML and LW decreased feed intake and mortality leading to increased body weight gains and improved feed conversion ratio (FCR). Administration of LW and ACIDAL®ML increased red blood cells, haemoglobin, haematocrit, serum albumin and IgA values but decreased white blood cells (WBC), lymphocyte and serum IgG. Conclusion: LW and ACIDAL®ML supplementation in hens’ drinking water, improved growth performance and reduced mortality. Furthermore, LW and ACIDAL®ML improved hen’s immune status by decreasing serum IgG, WBC and lymphocytes while increasing serum IgA and albumin content.

  Y. Ameyapoh , Jean-Yves Leveau , Simplice D. Karou , M. Bouix , Seyram K. Sossou and C. De Souza
  The present study aimed to access for the physiochemical parameters of vinegar production through Togolese local variety Mangovi of mango Mangifera indica juice fermentation. The juice was fermented successively by Saccharomyces cerevisisae and acetic bacteria. The levels of ethanol and acetic acid in the juice during the production of vinegar were monitored by gas chromatography and titrimetry methods, respectively. The physiological state of the yeast Saccharomyces cerevisiae L2056 was determined by flow cytometry using a dual fluorescent labeling of diacetate carboxy-fluorescein (CFDA) and propidium iodide. The results indicated that 200 mL of mango juice, sugar content 20 Brix, set in alcoholic fermentation with 106 yeast cells produced 22.4 g L-1 ethanol in 72 h. Acetic fermentation transformed 93% of this ethanol to acetic acid in 288 h. Twenty-four hours after the beginning of alcoholic fermentation, 91% of cells were viable, 8.85% were stressed and 0.05% died. After 24 h of acetic fermentation, viable, stressed and dead cells were 45, 12 and 39%, respectively; corresponding to the passage of acetic vinegar level from 0.9 to 2.1°. At the end of the acetic fermentation, dead cells were estimated to 98% at and acetic acid to 4.7°. Using consecutive fermentations is suitable technique for vinegar production from mango juice. The application of the present results may contribute to avoid fruits post harvest losses.
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