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Articles by A. Teteh
Total Records ( 10 ) for A. Teteh
  A. Teteh , , K. Aklikokou , M. Gbeassor , J. Buyse and E. Decuypere
  Effects of feed nutritive values on broiler performance are widely investigated. But, relationship between feed macronutrients’ levels and layer-type chicks (male and female) retains little attention. However, as for all developmental stages, starter diet composition may affect layer-type chick juvenile growth as well as physiological parameters. A total of 684 Hisex Brown layer-type chicks were studied. Chicks were divided, at random, into 3 groups with equal number of males and females: control, Low-Protein Diet (LP) and High Metabolisable Energy Diet (HME). During rearing period, feed intakes were recorded and chicks were weighed individually at the end of each week. Also, sample of chicks were used to weigh liver, at hatch and at 7, 14 and 56 day-old and to collect blood for glucose, total protein and triglyceride levels determination. Results indicate that layer-type chick growth rate, liver weight and feed efficiency were in following order HME > control > LP. With regard to chick sex, male chicks of HME and control diets grew better than female chicks from d 7 onward. But, in LP group, the weights of male and female chicks were comparable up to 49 d-old. At 7 d post-hatch, serum total protein and triglyceride levels of control chicks were higher than those of chicks of LP group while the levels of HME group were comparable to those of the two other groups. For total protein levels this trend lasted until 56 d of age. It can be concluded that low protein level of starter diet affects negatively feed efficiency and layer-type chick juvenile growth while high level of metabolisable energy improve feed efficiency and growth rate.
  A. Teteh , E. Lawson , K. Tona , E. Decuypere and M. Gbeassor
  After the ban in 2006 of the use of antibiotic growth promoter, the search of an alternative led to the utilization of plants like Moringa oleifera Lam. Leaves of this plant are known to have an important component of macronutrients (protein, energy, amino acids), of micronutrients (vitamins, minerals...) and of anti-nutritive factors such as polysaccharides, tannins, saponins, phytates etc. In the aim to give more knowledge about it, leaves are collected from Akoumapé (Vo district in Togo), dried, pulverized and soaked in ethanol-water (50/50). The mixing obtained is homogenized, filtered and evaporated to obtain hydro alcoholic extract. This extract was used to determine its contents in some chemical groups such as total phenols (4.2%), tannin (2.38%), total flavonoids (0.2%) and polysaccharides (21.1%). In addition, a total of 615 day-old broilers (Ross) were divided at random into 3 groups (M0, M1 and M2) fed, respectively with diet 1 (0%), diet 2 (1%) and diet 3 (2%). During the assay, witch lasted for 4 weeks, 15 chicks of each group were slaughtered weekly to collect and weight liver, pancreas, spleen, bursa and thymus. At the same moment, body weight, feed intake, body weight gain and feed conversion ratio were determined. At 28th day, chicks of groups M1 and M2 grew better and have better feed conversion than chicks of groups M0. The same trend is followed by relative organ weights. It can be concluded that Moringa oleifera leaves incorporated at 1 and 2% in feed can improve growth and the lack of significant difference between 1 and 2% could be attributed to the high content of diet 3 in anti-nutrients especially saponins that impair the digestion and absorption of nutrients especially lipids.
  K. Tona , A. Agbonon , K. Eklu-Gadegbeku , A. Teteh , P. Simons , J. Buyse , N. Everaert , B. Kemp , E. Decuypere and M. Gbeassor
  In commercial poultry husbandry practice, the hatchery takes over the incubation of bird eggs in order to provide as many day-old chicks as needed at any time to farmers. The main bottleneck for poultry industry development in Togo is the lack of day-old chick supply. Indeed, there is no proficient hatchery which can cover the needs of the farmers because of lack of information about hatchery management or people trained as hatchery managers. Also, there is lack of information about management practice aspects, etc. With the aim to promote poultry industry in Togo, an interuniversity project [Catholic University of Leuven (KUL) and University of Lome (UL)] as a model of poultry industry development was implemented. Specific objectives of the current project are to implement research and development activities on better conditions of incubation and adapted management practices focusing mainly on (1) Effect of early transferring of layer breeders hatching eggs on embryo parameters and hatchability, (2) Comparison of different chicken genotypes in Embryo Physiology, (3) Effects of heat conditioning at d 16 to 18 of incubation or during early broiler rearing on embryo physiology, post-hatch growth performance and heat tolerance, (4) Effect of low albumen quantity on chick embryo and post-hatch parameters, (5) Effects of In ovo-administration of L-carnitine on hatching events and juvenile performance of layer-type chick, (6) Interaction effects of mixing hatching eggs of differential embryo growth trajectory and incubator CO2concentration on embryo physiological parameters, (7) Effect of delayed feed access on production and blood parameters of layer-type chicks and (8) Induced moulting of layer chickens.
  A. Teteh , M. Gbeassor , E. Decuypere and K. Tona
  Protein sources diversification and antibiotic growth promoter ban have led to the use of plants. Through production improving, leaves such as Moringa oleifera leaves were often used to ameliorate broilers and layers growth. Attempt to improve egg production led us to undertake this study with 600 day-old ISA Brown chicks (layer-type) divided into three groups (M0, M1 and M2) of 200 birds each. They were reared up to 40 weeks. Daily egg and feed intake were collected to determine laying rate and conversion ratio. Weekly, 30 eggs per group were weighed and broken to determine egg components ratio. At 20 and 40 weeks, 40 birds per group were slaughtered to collect blood, ovarian grape and oviduct. So, total protein, glucose and triglycerides concentrations, ovarian grape weight, oviduct weight and follicles number were determined. Data collected showed higher egg production, heavier eggs and higher triglycerides concentration in M1 compared to M2. High level of triglycerides can be linked to oestrogens synthesis from sterols contained in Moringa oleifera leaves in M1 while high intake of oestrogen substances by hens of M2 reduces their production although antinutritive substances effect on them cannot be excluded.
  D. Nideou , O. N`nanle , A. Teteh , E. Decuypere , M. Gbeassor and K. Tona
  Background and Objective: A major challenge in broiler breeder management is the nutritional requirement and the effect of feed formulation on breeder performance. Metabolizable energy and crude protein levels are two important nutritional parameters for evaluating poultry feed. The purpose of this study was to evaluate the effect of low-protein and low-energy diets on the performance of Sasso breeders. Materials and Methods: The experiment was performed with 120 Sasso breeders divided into 3 groups (control group, low-protein group and low-energy group) of 40 birds each. Feed intake, body weight, egg weight and egg component weights were recorded weekly. At 35 weeks of age, a total of 600 settable eggs were collected in 7 days and stored at 15°C before incubation. Prior to setting for incubation, eggs were numbered, weighed and assigned to 4 replications of 50 eggs each diet/treatment. Results: Results indicate that breeders of the control diet group exhibited increased body weight (p<0.05) with heavier eggs (p<0.05) and an increased ratio of albumen weight to egg weight (p<0.01) as compared with the groups with the low-energy diet and the low-protein diet (p<0.05). In addition, day-old chicks from eggs of the control group were heavier (p<0.05) than those from eggs of both the low-energy and low-protein diet groups. Conclusion: Low-protein and low-energy diets during the laying period negatively affect the feed intake and feed conversion ratio. These diets also affect the egg weight and ratios of albumen, yolk, shell and chick weight. No significant differences were observed regarding hatchability and blood serum concentration levels of total protein, triglycerides and glucose.
  K. Voemesse , A. Teteh , D. Nideou , O. N`nanle , M. Gbeassor , E. Decuypere and K. Tona
  Background and Objective: Medicinal plants are currently used as alternative to antibiotics growth promoters. However, their positive effect on livestock growth performance, particularly on poultry, depends on the rearing conditions and the birds’ lines. This study investigated the effect of different levels of Moringa oleifera leave meal (MOLM) on performance and serum biochemical parameters of egg-type chicken from one day old to 8 weeks of age. Methodology: A total of 450 days old chicken were randomly assigned to three treatment groups (M0, M1 and M3), 150 birds per treatment group and were respectively fed with diets containing 0, 1 and 3% of Moringa leaf. During experimental period, feed intake, body weight and feed conversion ratio were recorded weekly. At 5 weeks of age, 12 birds per group were slaughtered to collect blood, gizzard, pancreas, heart and liver. Blood serum concentrations in total protein, albumin, uric acid, calcium, magnesium and iron were also determined. Results: Results showed similarity between feed intake, liver relative weight while significant differences (p<0.05) between treated groups and the control one were observed on body weight, daily weight gain, feed conversion ratio and gizzard relative weight. In addition, total protein, albumin, calcium, magnesium and iron levels were significantly increased (p<0.05) in chickens fed MOLM as compared to control. The results also indicate that chickens of control diet group had higher blood uric acid level (p<0.05). However, no significant difference in phosphorus concentration was found between groups. Conclusion: During juvenile growth, MOLM did not affect feed intake, liver relative weight and phosphorus level. The leaves affect body weight, daily weight gain, feed conversion ratio and gizzard relative weight. Significantly differences were observed on total protein, albumin, calcium, iron and magnesium levels.
  A. Kolani , Y. Adjrah , M. Eklou-Lawson , A. Teteh and K. Tona
  Background and Objective: Difficulties in satisfying the energy requirements of birds with cereals, especially maize, have led researchers to investigate the effects of different levels of dietary palm oil on the production performance of laying hens. This study was conducted to investigate the effects of dietary palm oil on the egg production performance and serum parameters of laying hens. Materials and Methods: One hundred eighty 55-week-old Isa Brown laying hens were used in a completely randomized study involving four treatments (groups). Birds in the four groups were fed for 14 weeks with diet 0, 1, 2 or 3. Diet 0 was the basal diet without palm oil, while diets 1, 2 and 3 contained 1, 2 and 3% palm oil obtained by a traditional procedure, respectively. Data were collected on feed intake, egg production, organ weight and biochemical parameters. Results: The results showed that feed intake decreased with an increase in dietary palm oil. Groups D1 (diet 1) and D2 (diet 2) showed high laying rates, low egg weights, low liver weights and a low feed conversion ratio, whereas group D3 (diet 3) had the heaviest eggs and the highest serum total protein concentration. These results might be related to the ability of palm oil to influence feed transit and to improve nutrient digestibility and absorption. Conclusion: Feed containing up to 2% palm oil had a beneficial effect on the egg production performance of laying hens.
  K. Attivi , K. Agboka , G.K. Mlaga , O.E. Oke , A. Teteh , O. Onagbesan and K. Tona
  Background and Objective: The scarcity and high cost of fish meal has led researchers to evaluate the use of unconventional protein sources as substitutes for fish meal in poultry feed. This study investigated the substitution of Black Soldier fly for fish meal in broiler diets. Materials and Methods: A total of 225 fourteen-day old broilers were assigned to five treatment groups: A0 (100% of fish meal and 0% of maggot meal), A25 (25% of fish meal and 75% of maggot meal), A50 (50% of fish meal and 50% of maggot meal), A75 (75% of fish meal and 25% of maggot meal) and A100 (0% of fish meal and 100% of maggot meal). Data were collected on feed intake, organ weights, biochemistry parameters and digestibility indices. Results: Birds in group A100 had the lowest feed intake and better feed conversion ratio. Gizzard weight of the birds in A0 and A25 was similar but significantly lower (p<0.05) than those in A50, A75 and A100. Intestinal length of birds in A50, A75 and A100 were significantly longer (p<0.05). No significant difference in serum total protein and cholesterol was recorded across the treatments whereas albumin concentration in the birds in group A100 was the highest (p<0.05). Triglycerides were in the following order: A0 = A25, = A50 A75 = A100. Uric acid concentration was significantly lower (p<0.05) in (A0). Conclusion: Black Soldier fly maggot meal improved broiler productive performance without any deleterious effect and can be considered as a suitable alternative for fish meal.
  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.
  O. Ngueda Djeuta , K. Voemesse , A. Teteh , M. Gbeassor , E. Decuypere and K. Tona
  Background and Objective: The scarcity and seasonal fluctuation of conventional feedstuff srequire alternative sources in order to ensure optimum performance of poultry birds. This study investigated the effect of Manihot esculenta leaf meal (MELM) on blood parameters and productive performance of laying hens from 50-62 weeks of age. Materials and Methods: A total of two hundred Is a Brown layers of 50 weeks of age were assigned to 4 dietary treatments with 5 replicates of 10 birds each. Treatment diets were: 0% MELM (ME0), 2.5% MELM (ME2.5), 5% MELM (ME5%) and 7.5% MELM (ME7.5). During the experimental period, feed intake, egg production, feed conversion ratio as well as egg quality parameters were recorded weekly. The blood samples were collected from 16 birds (4/replicate) at 61th weeks of age for the determination of total protein, albumin and uric acid. Results: Results showed that feed intake (FI) and egg production were higher (p<0.05) in the birds of ME5 and ME7.5 than those of the other treatment. The birds in ME5 and ME7.5 also had the lowest (p<0.05) feed conversion ratio (FCR). Total proteins and albumin were significantly higher (p<0.05) in birds fed 5 and 7.5 % of MELM while layers in ME 7.5 group had the highest (p<0.05) uric acid concentration. Most external and internal egg quality parameters were not significantly affected except for yolk color score which was improved with increased levels of MELM. Conclusion: In conclusion, Manihot esculenta leaf meal (MELM) can be used up to 7.5% as feed ingredients in laying hens to improve performance.
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