scholarly journals Nutritional Value of Yarrowia Lipolytica Yeast and its Effect on Growth Performance Indicators n Piglets

2016 ◽  
Vol 16 (4) ◽  
pp. 1091-1100 ◽  
Author(s):  
Anna Czech ◽  
Aleksandra Smolczyk ◽  
Katarzyna Ognik ◽  
Martyna Kiesz
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Yarrowia Lipolytica ◽  
Performance Indicators ◽  
Nutritional Value ◽  
Essential Amino Acids ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Valuable Component ◽  
Fodder Yeast

Abstract Yarrowia lipolytica yeast can be a valuable component of feed compounds due to its high content of protein and essential amino acids, as well as minerals. The objective of the study was to verify the research hypothesis that Yarrowia lipolytica (YL) yeast, having a more valuable chemical composition than Saccharomyces cerevisiae (SC), can improve growth performance in piglets. An attempt was made to determine what proportion of YL yeast in a compound feed for piglets would produce measurable effects in terms of production and health. The experiment was carried out on 46-dayold piglets receiving experimental mixtures for 39 days. The piglets in the experimental groups were fed the same mixture as the control, but with 3% or 6% fodder yeast of the strain Yarrowia lipolytica A-101 in place of soybean meal. The YL fodder yeast had significantly higher content of alanine (by about 50%), lysine, isoleucine and tryptophan (over 30%), leucine, valine, glycine and glutamic acid (over 20%), and tyrosine (by about 17%) in comparison with SC yeast. Content of crude fat was three times higher than in SC yeast. YL yeast had significantly higher content of Na+, K+, Ca+2, Mn+2, S, Mg+2 and Zn+2 than SC, as well as significantly higher content of vitamins B2 and E. Yarrowia lipolytica fodder yeast introduced to compound feed in the amount of just 3% improved growth performance (an increase in daily weight gain and a decrease in feed conversion per kg weight gain). These results indicate that YL in the amount of 3% in compound feed can be successfully used in the diet of piglets in place of the commonly used SC.

Haematology and growth performance characteristics of broiler birds fed abattoir wastes (bovine blood and rumen content)

2020 ◽  
Vol 47 (3) ◽  
pp. 67-76
Author(s):  
D. N. Onunkwo ◽  
O. A. Ekine
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Performance Characteristics ◽  
Daily Weight Gain ◽  
Rumen Content ◽  
Broiler Chicks ◽  
Bovine Blood ◽  
Feed Conversion ◽  
Final Body Weight

This study was conducted to assess the effects of abattoir wastes (bovine blood and rumen content mixture) on the haematology and growth performance characteristics of broiler birds. One hundred and twenty (120) unsexed day old Abor acre broiler chicks were randomly assigned to 4 treatments and replicated 3 times in a completely randomized design (CRD) experiment. Four experimental diets were formulated to meet the nutrient requirement of broilers such that the birds were fed sundried abattoir waste (bovine blood and rumen content mixture) included at 0%, 5%, 10% and 15% representing Diet 1, 2, 3 and 4 respectively, with Diet 1 as the control. Each dietary treatment consists of 30 birds with 10 birds per replicate. The experimental diets and clean water were supplied at- libitum throughout the experimental period. Data were collected on feed intake, daily weight gain, final body weight, weight gain. Feed conversion ratios were calculated. Blood samples for hematology was collected, analyzed and recorded. At the end of the 56 days feeding trials, data collected on different parameters were subjected to analysis of variance (ANOVA). Results showed that mixtures of bovine blood and rumen content significantly (P<0.05) improved the final weight (1767.02g -1931.44g), weight gain (1367.02g -1528.44g), feed intake (107.47g -118.99g) and feed conversion ratio (4.87 – 4.08) of the broilers. Significant (P<0.05) improvements were observed on the RBC, WBC, MCV, MCH, eosinophyls and the lymphocytes of the haematological parameters of the broilers. These results showed the complementary potentials of bovine blood and rumen content mixture in broiler diets, which can be included up to 15% in the ration of broilers without detrimentally affecting the growth performance and haematology of the broilers.

Effects of dietary selenium-yeast concentrations on growth performance and carcass composition of ducks

2017 ◽  
Vol 57 (8) ◽  
pp. 1731 ◽  
Author(s):  
Milan Ž. Baltić ◽  
Marija Dokmanović Starčević ◽  
Meho Bašić ◽  
Amir Zenunović ◽  
Jelena Ivanović ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Subcutaneous Fat ◽  
Conversion Ratio ◽  
Carcass Composition ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Control Group ◽  
Feed Conversion ◽  
Dressing Percentage

The aim of the present study was to assess effects of selenium (Se)-yeast diet supplementation on performance and carcass composition in ducks. The study was performed on 240 1-day old ducklings of the same origin (Cherry Valley hybrid), during a 49-day period, which were fed diets supplemented with the following four different levels of Se yeast (ALKOSEL® R397): groups with Se at 0 mg/kg of the diet as-fed, 0.2 mg/kg, 0.4 mg/kg and 0.6 mg/kg. Growth performance (bodyweight, daily weight gain, daily feed intake, feed-conversion ratio) and carcass characteristics (hot and cold carcass weight, chilling losses, dressing percentage, carcass cut yields, and percentage of tissues in breast and thighs with drumsticks) of the ducks were determined. Animals fed high-Se diets (0.4 mg/kg) had higher (P &lt; 0.05) final bodyweight and daily weight gain (from 15 to 49 days) compared with those fed diets with inadequate (0 mg/kg) or with supranutritional (0.6 mg/kg) Se levels. Ducks fed only with basal diet showed a higher (P &lt; 0.05) feed-conversion ratio (from 15 to 49 days) compared with those supplemented with Se at 0.4 mg/kg and 0.6 mg/kg. Dressing percentage was higher (P &lt; 0.01) in the control group (69.50%) than in the group with Se added at 0.6 mg/kg (66.85%). The weights of basic cuts from the duck carcasses did not significantly differ among compared groups. Moreover, the percentage of skin with subcutaneous fat in breast and thighs with drumsticks increased in Se-supplemented groups compared with the control group, while the opposite was determined with the percentage of muscle. It was concluded that a diet containing 0.4 mg of added Se per kilogram produced the greatest growth-performance results in ducks.

scholarly journals Effects of Least Cost Homemade Ration on Growth Performance of Sasso and Indigenous Breeds of Chicks

2021 ◽  
Author(s):  
Lemma Gulilat ◽  
Firew Tegegne ◽  
Solomon Demeke
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Commercial Diet

The objective of this study was to develop the least-cost starter&rsquo;s diet and evaluated its effect on the growth performance of Sasso breeds and Indigenous ecotype of chicks under the local condition of the South Gondar Zone. The effects of substitution of different levels of commercial starters ration with homemade diet on the growth performance of Sasso and Indigenous chicks were studied in Hiruy Abaregay village of Farta district. The research area is 586km distant from the capital city of Addis Ababa, Ethiopia. A total of 510 Sasso T-44 and 90 Indigenous local ecotypes day-old chicks were randomly divided into five groups, each with 102 and 18 chicks, respectively. These were assigned into five treatments in which 100 (T1), 75 (T2), 50 (T3), 25 (T4), and 0% (T5) of commercial starter&rsquo;s diet in factorial completely randomized design (CRD) with 3 replications for 60 days feeding period. The results obtained indicated that increased levels of substitution of a commercial diet with a homemade diet significantly depressed (p&lt;0.001) mean daily feed consumption and retention of dry matter, nitrogen, and metabolizable energy. Growth rate as measured by mean daily weight gain, mean final body weight, and total feed consumption and feed cost were significantly miserable (p&lt;0.001) in an increased homemade diet. On the contrary, there was an increase in feed conversion ratio and fiber content in high-level dilution of starter&rsquo;s commercial diet with a homemade diet. However, the groups of chicks on 0, 25, and 50% commercial starters diets replaced by homemade diet were significantly higher (p&lt;0.001) in mean daily feed intake, daily weight gain, feed conversion ratio, and final body weight attained. The results of this study indicated that up to 50% of expensive commercial starter&rsquo;s diet could economically be replaced with the least cost homemade diet without adversely affecting the growth performance of chicks.

scholarly journals PSVI-7 Increased consumption of Methionine as DL-Methionine or OH-Methionine improved pigs growing performance and carcass traits under hot conditions

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 201-201
Author(s):  
Caio A da Silva ◽  
Marco A Callegari ◽  
José Henrique Barbi ◽  
Naiara Fagundes ◽  
Cleandro P Dias ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Carcass Traits ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Lean Meat ◽  
Adequate Dose ◽  
Significant Difference

Abstract This study aimed to determine the effects of increasing Methionine (Met) supply on growth performance and carcass traits of growing-finishing pigs under summer conditions in Brazil. A total of 200 barrows and females, 63 d-old (20.43±2.0 kg), were allocated in a 2 x 2 factorial design (two Met sources [DL-Met and OH-Met] and two Met doses [100 and 120% Brazilian Nutritional recommendation) with 10 replicates of 5 animals each. Corn-DDGS-wheat-soya based diets were formulated. Treatments were offered during four phases: growing I (63-93 d old), growing II (94-114 d old), finishing I (115-142 d old) and finishing II (143-160 d old). The recommended digestible Met levels were: 0.32, 0.30, 0.29 and 0.24% respectively for the four phases. Average temperature was 27.12 ± 4.51ºC and relative humidity was 61.72 ± 5.65%. Growth performance was measured for each rearing phase. Carcass yield, back fat height, loin depth, and lean meat yield were measured at the end of the experiment. Data were submitted to a 2-way ANOVA and Tukey test. There was no significant interaction between the Met source and the dose for all performance and carcass traits. Feed intake and feed conversion ratio were similar between treatments (P &gt;0.05). The individual daily weight gain and live weight were better for the highest doses of methionine (P&lt; 0.05) in all phases and on the whole period, except for the finishing II where the weight gain was similar for all treatments. Likewise, carcass yield, lean meat was increased with the highest dose of methionine in comparison to the adequate dose. No significant difference was found between DL-Met and OH-Met on growth performance parameters. OH-Met resulted in a higher loin depth (58.37 mm) in comparison to DL-Met (55.21 mm). Overall, these results demonstrated the interest of increasing Met supply under hot conditions to improving performance and carcass quality traits.

scholarly journals Effects of Diets Containing Asyastasia gangetica and Brachiaria decumbens on Intake, Digestibility and Growth Performance of Growing Rabbits

2020 ◽  
Vol 43 (4) ◽  
Author(s):  
Mohammad Mijanur Rahman ◽  
Siti Nafisah Binti Ismail ◽  
Khairiyah Mat ◽  
Takahiro Gondo ◽  
Maryana Mohamad Nor ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Nutrient Digestibility ◽  
Daily Weight Gain ◽  
Partial Replacement ◽  
Feed Conversion ◽  
Brachiaria Decumbens ◽  
Beneficial Effects ◽  
Total Weight Gain ◽  
Ad Libitum

The beneficial effects of feeding rabbits with forages have been recommended. However, limited study has been made on feeding values of locally available forages in rabbits. Therefore, an experiment was conducted to evaluate the effect of Asyastasia gangetica and Brachiaria decunbens on intake, digestibility, and growth performance of rabbits. Twelve rabbits were distributed into three diets: (i) 100% commercial pellet as control (T1), (ii) 50% pellet plus Asyastasia gangetica ad libitum (T2), and (iii) 50% pellet plus Brachiaria decumbens ad libitum (T3). Daily feed intake, nutrient digestibility, weekly body weight, and feed conversion ratio (FCR) were measured. Intakes of total dry matter (DM) (121.2-134.3 g/d) and organic matter (OM) (115.1-132.5 g/d) were similar (p>0.05) for all the groups. The crude protein (CP) intake of rabbits fed with T1 (10.1 g/d) and T3 (9.6 g/d) diets was similar (p>0.05), but lower (p<0.05) than T2 (14.1 g/d) diet. Ether extract intake of rabbits fed with T2 (2.9 g/d) and T3 (3.9 g/d) diets was similar (p>0.05), but lower (p<0.05) than T1 (5.1 g/d) diet. Neutral detergent fibre (NDF) intake was higher (p<0.05) for rabbits fed with T3 (55.8 g/d) diet followed by T2 (41.7 g/d) and T1 (31.7 g/d) diets. There were no differences (p>0.05) on the digestibilities of DM, OM, and CP among treatments. Total weight gain and daily weight gain were higher (p<0.05) for rabbits fed with T1 (568 and 11.0 g) and T2 (468 and 9.0 g) diets than T3 (155 and 3.3 g) diet, respectively. The lowest FCR was obtained with T1 (12.3) and T2 (13.9) diets, whereas the highest was obtained with T3 (30.3) diet. In conclusion, diet containing Asyastasia gangetica showed more benefits in terms of CP and NDF intakes, weight gain and FCR than the diet containing Brachiaria decumbens. A combination of concentrate and Asyastasia gangetica is recommended as a partial replacement for concentrate in rabbit production.

scholarly journals Effects of graded levels of boiled wild sunflower (Tithonia diversifolia Hemsl A. Gray) leaf meal on growth and carcass characteristics of rabbits.

2019 ◽  
Vol 41.2 ◽  
pp. 6940-6950
Author(s):  
Foku Vitalis Khan ◽  
Defang Henry Fualefac ◽  
Kana Sagne Derrick Augustin ◽  
Amandine Matho ◽  
Fonteh Florence Anyangwe Angaba ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Carcass Characteristics ◽  
Abdominal Fat ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Tithonia Diversifolia ◽  
Feed Conversion ◽  
Leaf Meal

To contribute solutions to the problem of animal protein shortage for human consumption in Cameroon, a study was conducted at the Teaching and Research Farm of the University of Dschang- Cameroon to evaluate the effects of inclusion levels of Tithonia diversifolia leaf meal (TDLM) on growth performance and carcass characteristics of rabbits. The leaves were chopped, boiled for 5 minutes, drained, sundried, milled and analysed for proximate composition in the Laboratory of Animal Nutrition. The leaf meal was used to formulate 4 experimental diets containing 0% (control) 15, 20 and 25% of the TDLM, corresponding to T0, T1, T2 and T3, respectively. A total of 40 (20 males and 20 females) 2-months-old rabbits, weighing 1000 ± 125g were randomly assigned to the 4 dietary treatments in a 4 x 10 replicates in a completely randomized design. The live weights of the animals were evaluated weekly for 9 weeks. Eight (8) rabbits (4 males and 4 females) per treatment were randomly selected and sacrificed for carcass evaluation. The data collected were then submitted to one-way Analysis of Variance (ANOVA). Mean differences were separated using Duncan. The results showed that incorporation of TDLM induced a decrease in daily feed consumption. The least daily feed intake was observed in treatment T3 (109.14g/d) while the highest daily weight gain (24.49g/d) and the least feed conversion ratio (4.61) were also observed in the same treatment T3. However, no significant differences were observed for these parameters (P>0.05) between the treatments although daily weight gain was higher and feed conversion ratio lower in the males as compared to the females. Carcass yield (C.Y.) was higher in the control T1 (52.39%) though comparable (P>0.05) with all the other treatments. Abdominal fat was significantly (P<0.05) lower (1.90%) in the treatment T0 but it was comparable to T3 while it was highest (2.28%) in T2. However, C.Y. was higher in males and abdominal fat was higher in females when sex was considered. The relative weight of the lungs was highest in T1 (0.55%), liver in T2 (2.25%), kidneys in T1 (0.56%) and the heart in treatment T2 (0.25%) though, there were no significant differences (P> 0.05) observed in organs weights. Although there were significant differences between organs of different sexes, no regular pattern was maintained. These all signified nutritional adequacy at all levels of inclusion of TDLM, improving growth performance at the inclusion level of 25%. T. diversifolia leaves boiled for 5 minutes, sundried and milled can therefore be used as an alternative ingredient which when included in the rations of rabbits up to 25%, still compares well with conventional ingredients in growth and carcass performance irrespective of the sex. However, the use of TDLM could significantly reduce the cost of feeding and enhance meat production as it is relatively more abundant as compared to other ingredients.

scholarly journals Dietary shatavari, Asparagous racemosus root extract promotes growth, feed conversion and nutrient utilization in Labeo rajasthanicus

2020 ◽  
Vol 41 (6) ◽  
pp. 1464-1469
Author(s):  
N.R. Keer ◽  
◽  
N.K. Chadha ◽  
V.P. Saini ◽  
M.L. Ojha ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Ethanolic Extract ◽  
Nutrient Utilization ◽  
Daily Weight Gain ◽  
Root Extract ◽  
Growth Promoter ◽  
Feed Conversion ◽  
Efficiency Ratio ◽  
Nutrient Utilisation

Aim: The objective of the study was to assess the effect of supplementation with dietary shatavari, Asparagous racemosus root extract on growth, feed conversion and nutrient utilization in Labeo rajasthanicus. Methodology: Two-hundred-seventy fingerlings of equal size (8.19±0.03g) were stocked in 18 fibre reinforced plastic tanks following complete randomized design. Six iso-nitrogenous (30% crude protein) and iso-caloric (390 kcal digestible energy per 100 g) diets were prepared with graded level of ethanolic shatavari root extract, i.e., 0.00, 0.15, 0.30, 0.45, 0.60, 0.75 g kg-1 and designated as control, T1, T2, T3, T4 and T5 were fed to L. rajasthanicus twice a day for 45 days. The growth performance, feed conversion and nutrient utilisation were considered as response parameters. Results: Significantly (P<0.05) higher growth performance (weight gain %, specific growth rate, net yield and mean daily weight gain percentage) and better feed conversion and nutrient utilization (protein efficiency ratio and lipid efficiency ratio) were observed in T1 group than in other experimental groups. Interpretation: Based on these findings, it can be concluded that ethanolic extract of shatavari root can be used as a growth promoter and can be included at the supplementation level of 0.15 g kg-1 diet for Labeo rajasthanicus.

scholarly journals Growth performance of weaned pigs fed from different feeding troughs: comparison of concrete feeding trough, semi-automatic feeder and its combination

2020 ◽  
Vol 46 (4) ◽  
pp. 137-143
Author(s):  
A. O. K. Adesehinwa ◽  
B. A. M. Makanjuola ◽  
E. Ajayi ◽  
D. J. Ogunyemi ◽  
B. A. Boladuro ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Feed Intake ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Weaned Pigs ◽  
Final Body Weight ◽  
Automatic Feeder

The study was carried out to evaluate the effect of concrete feeding trough, semi-automatic feeder and their combination on growth performance of weaned pigs. Sixty weaned cross bred (Large white x Landrace) pigs of average initial weight of 9.04 Kg were grouped based on sex and assigned to three dietary treatments, comprising two replicates of 10 weaned pigs each. The design of the experiment was completely randomized design. A standard diet was prepared to meet the nutrient requirements of weaned pigs. The diet was fed to the animals in concrete feeding trough (T1), semi-automatic feeder and concrete feeding trough (T2) and semi-automatic feeder (T3). The experiment was partitioned into three periods (Weeks 1-4, 5-8 and 1-8). Feed and water were given unrestrictedly throughout the period of the experiment. The feed intake and weights of the pigs were recorded on weekly basis. Feed conversion ratio and daily weight gain were calculated and the study lasted for eight weeks. There was no significant (P>0.05) effect of feeders on final body weight, average daily weight gain, daily feed intake and feed conversion ratio. The overall performance showed that combination of the feeders (T2) improved daily weight gain (369.71 g), average daily feed intake (1021.14 g) and had the best feed conversion ratio (2.99). It could be concluded that combination of concrete feeding trough and semi-automatic feeders improved the growth performance of weaned pigs.

scholarly journals Growth performance of growing rabbits fed graded levels of Acacia Albida Pods

2021 ◽  
Vol 34 (2) ◽  
pp. 233-240
Author(s):  
J.U. Igwebuike ◽  
F.O.I. Anugwa ◽  
N.G Ehiobu ◽  
S.A Ikurior ◽  
A.O. Raji
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Energy Levels ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Final Body Weight ◽  
New Zealand White Rabbits ◽  
Acacia Albida ◽  
Biological Performance

The effect of feeding up to 40% of Acacia albida pods (AAP) on the growth performance of growing rabbits was investigated. Sixty crossbred (Dutch x New Zealand white) rabbits; 7-8 weeks old were used for the 12-week study. The rabbits were individually weighed and assigned to the 5 diets in groups of 12 rabbits per treatment. The experimental diets contained 0, 10, 20, 30 and 40% AAP in diets 1, 2, 3, 4 and 5 respectively. The crude protein and energy levels of the diets were maintained at 18% and at least 3100kcal/kg respectively. The diets and drinking water were offered ad libitum. The crude fibre (CF) of the diet ranged from 11.22% in diet 1 10 14.84% in diet 5. The CF levels appreciated with increasing levels of AAP. A similar trend was observed for ether extract (4.78 to 6.90%), tannins (0.099 to 1.09%) and phyrins (128.58 10 285.71 mg). Feed intake did not differ significantly (P>0.05) among the groups on diets 1 (57.80g), 2 (55.89g), 3 (58.53g) and 4 (55.92g) hut was significantly (p<0.05) lower for those on diet 5 (53.07g/d). Weight gain, feed conversion ratio (FCR) and protein efficiency ratio (PER) of rabbits on all the diets do not differ significantly (p>0.05), though rabbits on diet 5 had slightly lower daily weight gain which cumulated into significantly lower final body weight of 1389.16g compared to 1605.83g for diet 1. Daily weight gain, FCR and PER were better in the first eight weeks compared to weeks 9 to 12. The corresponding values were 9.63 to 12.68 Vs 2.14 to 3.70g/d for daily weight gain, 4.73 to 5.78 Vs 14.22 to 22.11 for FCR and 0.90 to 1.20 Vs 0.23 to 0.41 for PER Thus, 20% AAP can be included in diets of rabbits without adverse effect on biological performance.

scholarly journals Efficacy of Ocimum gratissimum leaf meal on growth performance, carcass characteristics, and blood profiles of broiler chickens

2021 ◽  
Vol 6 (4) ◽  
pp. 135-143
Author(s):  
C. A. Essien ◽  
◽  
V. S. Udoh ◽  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Broiler Chickens ◽  
Conversion Ratio ◽  
Daily Weight Gain ◽  
Feed Additive ◽  
Feed Conversion ◽  
Ocimum Gratissimum ◽  
Final Weight ◽  
Blood Profiles

This study was conducted to determine the effect of Ocimum gratissimum as a phytogenic feed additive (PFA) on growth performance, carcass, and blood profile of broiler chicken. One hundred and sixty day old broiler chickens were used for the study. Four diets were formulated to incorporate Ocimum gratissimum at 0, 50, 100 and 150 g per 100 kg of feed to form T1, T2, T3, and T4 respectively. The birds were divided into four groups of forty birds and each group was assigned one of the diets in a completely randomized design. Each group was further divided into four replicates of 10 birds each. Feed and water were supplied ad libitum and data collected were statistically analyzed. The result obtained showed significant (p<0.05) differences in the final weight gain (FWG), daily weight gain (DWG) and feed conversion ratio both at the starter and finisher phases. T4 had the highest significant (p<0.05) final weight gain (FWG), and daily weight gain (DWG) values. The lowest significant (p<0.05) feed conversion ratio (FCR) values were observed in T4. The feed intake of the birds was statistically similar (p>0.05) at both the starter and the finisher phases. Significant (p<0.05) increases were observed in dressed weight, dressing percentage, and cut-up parts (wing, thigh, drumstick, and breast) of the birds. T4 had the highest significant values for the carcass parameters. The haematological parameters analyzed showed significant (p<0.05) differences in the value for red blood cell (RBC), haemoglobin (Hb) and packed cell volume (PCV) values with T4 recording the highest significant (p<0.05) values for those parameters. All the serum biochemical parameters analyzed were not significantly affected (p>0.05) by the treatments. It can be concluded that Ocimum gratissimum could be added to broiler diet at 150 g/100kg as feed additive without any deleterious effect on the growth performance, carcass, and blood profiles of the birds.

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