Asian Science Citation Index is committed to provide an authoritative, trusted and significant information by the coverage of the most important and influential journals to meet the needs of the global scientific community.  
ASCI Database
308-Lasani Town,
Sargodha Road,
Faisalabad, Pakistan
Fax: +92-41-8815544
Contact Via Web
Suggest a Journal
 
Articles by L. Bratte
Total Records ( 6 ) for L. Bratte
  L. Bratte , I.A. Amata , S.I. Omeje and G.N. Egbunike
  In an investigation conducted to determine the effect of utilizing seeds of the African Pear (Dacryodes edulis G. Don, H.J. Lam) as a feed ingredient in the diets of broiler breeders on semen characteristics, 25 adult Anak Titan breeder cocks aged 20 weeks were randomly allotted to five dietary treatments of 5 cocks per treatment and fed diets in which Dacryodes edulis seed meal (DESM) replaced maize at 0% (control), 15, 30, 45 and 60% for 8 weeks. After 2 weeks of feeding the experimental diets, semen was collected twice weekly from the cocks by the lumbar massage technique. Semen colour or consistency scores were significantly lower for cocks which received the control and 15% DESM diets than for cocks on the 45 and 60% DESM diets. Mean semen volume was significantly (p<0.01) higher in cocks fed with 15, 30 and 45% DESM (0.33, 0.37 and 0.35 mL, respectively) than in those which received the control diet (0.21 mL) and in those fed 60% DESM (0.19 mL). Sperm concentration (x106 mL-1) generally increased significantly (p<0.01) as the level of DESM in the diet was increased. Negative but non-significant (p>0.05) correlations existed between body weight and sperm motility, semen pH, ejaculate volume, sperm concentration and percent live sperm while body weight bore a positive (but non-significant) correlation with percent abnormal sperm and a highly significant (p<0.01) positive correlation with semen consistency (0.99). It was concluded that DESM had no adverse effect on semen quality of broiler breeders even if it replaced as much 45-60% of dietary maize in broiler breeder diets.
  L. Bratte
  This study was aimed at determining the effects of partially replacing dietary maize with Dacryodes edulis seed meal on growth performance, feed consumption, mortality and nutrient digestibility and retention in broiler chickens and the cost benefit of so doing. Two hundred and 225 day old anak broilers were randomly assigned to five dietary treatments of 45 birds per treatment in which Dacryodes edulis Seed Meal (DESM) replaced maize at 0% (control), 15, 30, 45 and 60% levels in the diets fed at the starter (0-28 days) and finisher (29-56 days) phases of production. The birds in each treatment were further divided into three replicates of 15 birds each and provided the feed and water ad libitum. The performance records of the birds in terms of body weight gains and feed intake showed that while the chicks tolerated up to 60% level of maize replacement with DESM in their diets, growth in the finishing birds was significantly depressed at the upper levels of DESM inclusion. Highest mortality (11.11%) occurred only during the starter phase (0-28 days) in broilers that received 30% dietary DESM. Dry matter and crude fibre digestibility and nitrogen and fat retention generally decreased significantly with increasing levels of dietary DESM. Moreover, from an economic point of view, it was more profitable to utilize DESM at the upper levels of maize replacement (45 and 60%) in starter diets, but at not more than 30% in finisher diets.
  B.O. Ovwigho , L. Bratte and J.O. Isikwenu
  The study was necessitated by the need to stir the minds of chicken egg producers towards adopting the best chicken management system. The extensive system of rearing chicken for egg is old and still remained the most popular in the study area. Commercial eggs production was carried out on a large scale by the few farmers who practiced the intensive (battery cage) chicken management system. A significant (p < 0.05) and high degree of positive relationship (r = 0.70) was found between chicken management system and level of egg production. Majority of the farmers would require general education, fund and technical training in poultry production to enable them adopt the intensive (battery cage) management system of rearing chickens for egg production. Mostly local chickens were reared under the extensive system. No matter the popularity, the extensive system of rearing chickens lacks the potential for increased egg production. Egg protein is regarded as luxury to the extent that children who consume eggs are regarded as thieves among most of the poor in Nigeria. More poultry farmers need to embrace the intensive (battery cage) system in order to meet the egg protein needs of the people of Delta State, Nigeria.
  L. Bratte
  The effect of partial replacement of dietary maize with seeds of the African Pear (Dacryodes edulis G. Don, H.J. Lam) in the diets of broiler chickens on the haematological and serological indices of broilers was investigated. Two hundred and twenty-five (225) day-old Anak broilers were randomly assigned to five dietary treatments with 45 birds per treatment made up of three replicates of 15 bids each in which Dacryodes edulis Seed Meal (DESM) replaced maize at 0% (control), 15%, 30%, 45% and 60% levels at the starter (0-28 days) and finisher (29-56 days) phases of production. The birds in each treatment were provided feed and water ad libitum. Variations in the experimental diets (treatments) had no significant effect (p>0.05) on all the haematological and serological indices measured except blood cholesterol, which showed highly significant (p<0.01) differences with changes in the levels of dietary DESM. Weekly variations were, however, significant (p<0.05) for mean Packed Cell Volume (PCV), Haemoglobin (Hb) and urea and highly significant (p<0.01) for mean Red Blood Cell (RBC) count, Mean Corpuscular Haemoglobin (MCH), Mean Corpuscular Volume (MCV) and mean blood cholesterol, glucose, creatinine, albumins, globulins and total proteins. Significant (p<0.05) Treatment x Time (Weeks) interaction effects occurred in mean PCV, WBC, Hb and in blood cholesterol. It was concluded, on basis of the similarity in the haematological and serological indices between the control diet and the other dietary treatments, that Dacryodes edulis Seed Meal could safely replace as much as 60% of the maize in conventional broiler diets without deleterious effects on broilers.
  L. Bratte
  In an investigation to determine the effects of utilizing seeds of the African Pear (Dacryodes edulis G. Don, H.J. Lam) as a replacement for maize in the diets of broiler chickens on the carcass and organ weights and on the organoleptic properties of the birds, two hundred and twenty-five (225) day-old Anak broilers were randomly assigned to five dietary treatments with 45 birds per treatment in which DESM replaced maize at 0% (control), 15%, 30%, 45% and 60% levels at the starter (0-28 days) and finisher (29-56 days) phases of production. The birds in each treatment were further divided into three replicates of fifteen (15) birds each and provided the feed and water ad libitum. The carcass and organ weights and organoleptic quality indices did not differ significantly (p>0.05) with variations in the level of DESM in the diets. Breast weight generally tended to decrease as the proportion of DESM in the diet was increased. Broilers which received 60% DESM for maize diets had the highest head, drumstick, thigh and neck weights (expressed as percentages of EW) while the control treatment produced the lowest drumstick, thigh and wing weights (as percentages of EW). Besides the heart, the proportions of the liver, pancreas and spleen were generally numerically higher at 45% and 60% levels of maize substitution with DESM than the control values. Meat tenderness, juiciness, flavour and overall acceptability were unaffected (p>0.05) by the level of inclusion of Dacryodes edulis Seed Meal (DESM) in the broiler diets. The coefficients of linear correlation between the meat quality variables were non-significant except for that between juiciness and flavour. It was concluded that DESM, when used to replace up to 60% of the maize in broiler diets does not adversely alter the ability of broilers to synthesize muscle and organ tissue.
  L. Bratte
  In a study to determine the influence of early skip-a-day (SAD) feed withdrawal on the heamatology and nutrient digestibility of broiler chickens, two hundred and twenty-five (225) Marshall broilers were, at day old, randomly assigned to 5 treatments of 45 chicks each, with each treatment having three replicates of 15 birds per replicate as follows: A full-fed control group (AL) and groups with feed withdrawn for 24 hours for 3 days (SAD-3), 4 days (SAD-4), 5 days (SAD-5) and 6 days (SAD-6) from 8th to 18th day of age after feeding them ad libitum for the first 7 days. Feed was provided ad libitum to all the chickens from 19 to 56 days of age. The birds were raised on deep litter. Heamatological variables measured or calculated on the 56th day included WBC, RBC, PCV, Hb, MCHC, MCH, MCV and total serum proteins. A metabolism trial was also carried out to determine the effect of feed restriction on nutrient digestibility/retention by the broilers. SAD feed withdrawal significantly (p<0.05) effected mean Packed Cell Volume (PCV), Red Blood Cell Counts (RBC), Haemoglobin content (Hb), Mean Corpuscular Haemoglobin Concentration (MCHC) and total serum protein, while total leucocyte count (WBC), Mean Corpuscular Haemoglobin (MCH) and Mean Corpuscular Volume (MCV) were unaffected. Each of the treatments to which the skip-a-day feed withdrawal was applied generally had a mean percent PCV value that was not significantly different from that of the control treatment group (AL). Birds feed-restricted beyond 4 days (SAD-5 and SAD-6) had significantly (p<0.05) lower mean RBC, Hb and MCHC values than birds in the control treatment group (AL). Feed restriction beyond 3 days significantly (p<0.05) lowered mean Hb and MCHC contents in relation to birds fed ad libitum thus indicating that the birds were not under stress from early SAD feed restriction imposed on them but were in a good state of health. Mean MCV was numerically higher at the most severe levels (SAD-5 and SAD-6) of early feed withdrawal compared with the control treatment, which is suggestive of increase in haemoglobin production at the more severe levels of feed withdrawal. The differences were, however, not significant (P>0.05). Serum protein was significantly lower for broilers feed-restricted for 5 and 6 days (5.90 and 5.60 g/dL respectively) than for the control, SAD-3 and SAD-4 treatments (6.40, 6.23 and 7.30 g/dL respectively). Variations in mean differential counts between treatments were not significant (p>0.05). However, basophil counts increased slightly while eosinophils decreased slightly in feed-restricted birds in relation to the control birds. Early feed withdrawal had no significant (p>0.05) effect on apparent dry matter and crude fibre digestibility. Nitrogen retention tended to increase as the severity of SAD feed withdrawal increased while mean fat retention for broilers subjected to 4, 5 or 6 days of SAD feed withdrawal were not significantly different from that of birds fed ad libitum. It was concluded that early skip-a-day feed withdrawal for up to 6 days did not lead to severe stress, or adversely alter nutrient digestibility and retention in the broilers.
 
 
 
Copyright   |   Desclaimer   |    Privacy Policy   |   Browsers   |   Accessibility