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A re-evaluation of calcium and phosphorous requirements for optimal performance and bone integrity of the Ross 308 broiler
Published 2018Subjects: “…Broilers…”
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The impact of limestone source and particle size on the digestibility of dietary calcium and phosphorus in broilers
Published 2020Subjects: “…Broilers…”
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Effects of feed additives on gut microbial diversity of Clostridium perfringens challenged broilers
Published 2020Subjects: “…Broilers…”
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Page will reload when a filter is selected or excluded.- Performance 8 results 8
- Broiler 6 results 6
- Broilers 5 results 5
- Broiler litter 4 results 4
- Broiler chicken 3 results 3
- Broiler chickens 3 results 3
- Carcass characteristics 3 results 3
- Broiler Chicken 2 results 2
- Drying methods 2 results 2
- Ginger 2 results 2
- Growth 2 results 2
- Haematology 2 results 2
- Rectal temperature 2 results 2
- "Soybean meal, benniseed, microbial phytase, broiler chickens, nutritional evaluation " 1 results 1
- "The potential of Cottonseed cake (CSC) at 0%, 25%, 50%, 75% and 100% replacement for Soybean cake (SBC) as an alternative protein source in chicks was investigated. One hundred and eighty Anak broiler chicks at day old were divided into twelve groups and randomly assigned to the five dietary treatments with three replicates per treatment. The feeding trial lasted for four weeks at the teaching and research farm of the university of Ibadan Nigeria. Feed intake revealed that chicks fed cottonseed cake-based diets had higher consumption when compared to those fed control. Though feed conversion showed significant differences (P<0.05) it did not follow a particular trend. There were significant (P<0.05) differences in protein utilization across the treatments. The highest protein efficiency ratio (PER) values were obtained with the birds in diet 3 (50% CSC) with values of 2.78 and 2.84 respectively while diet 5 (100% CSC) gave the lowest value of 1.20. Results showed there were significant (P<0.05) differences in weight gain from the 1st week to the 411' week. Birds fed diet 4 having 75% CSC replacement for SBC had the same value (220g) with the control (Diet 1) Mortality was low in all the treatments and a range of 1-2 % mortality was recorded during the study. " 1 results 1
- A 21-day feeding trial involving 480, 4-week old unsexed Abhor Acre broilers was carried out in a completely randomised design to evaluate performance, carcass characteristics and cost benefit of broiler finishers fed iso- caloric and iso-nitrogenous corn-soyabean based enzyme supplemented diets. Diet 1 had no supplemented Roxazyme G and phytase (T1-basal diet). The other three diets are: T2-Roxazyme G (0.2g/kg), T3-basal diet +Phytase (lg/kg) and T4-basal diet +Roxazyme G and Phytase (0.2g/kg and lg/kg) inclusion. The objective was to observe whether addition exogenous enzymes individually or as a mixture improved efficiency of broiler finisher production. The results showed no significant differences (p>0.05) across the dietary treatments for daily feed intake, weight gain and FCR. The values obtained were in the range of 137.9g, 1191.9g and 1.45 respectively. There were no significant difference (p>0.05) in carcass weight of birds on T4, T2 and TI but birds fed both Roxazyme G and phytase had heaviest carcass weight of 1533.3g . However, birds fed diets supplemented with phytase alone had significantly lower carcass weight and dressing yield to other dietary treatments. The cut up parts were not significantly different (p>0.05) except the weights of the head, drumstick and breast meat. The cost analysis showed that it is not profitable to include the enzymes in the practical broiler finishers' diet used in this study. There was no need to include the above enzymes in the diet of broilers at finishing phase as the birds at this stage can efficiently utilize nutrients in their feed. 1 results 1
- A 49-day feeding trial involving 180 1-day-old Abhor acre broilers was carried out to evaluate growth and carcass quality of broilers fed cassava leaf meal and cassava peel meals used as replacements of soya bean meal and maize at 20% respectively. Four groups of 45 birds per group of 15 birds per replicate consisting of three replicates per group. Group A served as control (cassava leaf meal (0%) and peelings meal (0%)), Group B (20% cassava peelings -20% leaf meal), C (20% leaf meal -0% cassava peelings) and group D (20% cassava peelings-0% cassava peelings). The cut parts of the carcass showed superior values (p<0.05) in the A (control) treatment and they differed significantly (p<0.05) from broilers on to the group on B (20 % cassava peelings-20 % leaf meal), C (20% leaf meal-0% cassava peelings), D (20% cassava peelings-0% cassava peelings). On the 49th day, the breast muscles of 36 birds were analysed for dry matter, proteins, fat and ash. The organoleptic values were not significantly influenced by the juiciness, taste, colour and overall acceptability among the dietary treatment levels. Up to 20% inclusion of cassava leaf meal and 20% cassava peelings as replacement for soya bean meal and maize respectively in both broiler starter and finisher, diets did not significantly affect growth and carcass yield of broilers. 1 results 1
- A study was carried out to determine the influence of fossil shell (diatomaceous earth) supplemented diets on the performance and bone composition of broiler chickens. A total of 120 day old broiler chicks were used for the experiment and randomly allotted to 5 treatments (Tl—0.9%, T2—1.2%, T3—1.5%, T4—1.8% and T5—0% inclusion levels respectively). Fossil shell inclusion had no significant influence on feed intake and feed conversion ratio, but had significant impact on weight gain. At the finisher phase no significant differences (p > 0.05) were observed for weight gain, feed intake and feed: gain ratio. Bone analysis showed that calcium content was not affected but fossil shell had significant influence on phosphorus content of the analyzed bones. 1 results 1
- A study was carried out to observe the effect of bio-detheobromised cocoa bean shell based diets on the performance of broilers. One hundred and ninety six (196) day-old broiler chicks were randomly assigned to seven diets, with each diet replicated four times and seven birds allocated to each, replicate. Cocoa Bean Shell was included at varying levels of 0, 5, 10, 15, 20, 25 and 30% in the diets. Results showed that Cocoa Bean Shell inclusion had significant influence on the final weight, weight gain, feed intake and feed conversion ratio (p<0.05), while there were no significant differences observed (p>0.05) for gut weight and primal cuts. It was observed that Cocoa Bean Shell inclusion at up to 10% had no adverse effect on the performance and primal cut output of broilers. 1 results 1
- A study was conducted for 8 weeks to determine the effect of administering varying levels of aqueous Tetrapleura tetraptera (African porridge fruit) on performance and gut morphology of broilers. A total of 150 day old broiler chicks (Abor acre) were randomly selected and allotted to 5 treatments and C replicates per treatment. The experimental ingredient was extracted and served to the birds in the 5 different treatments as follows; Control (water with no additive), Positive control (antibiotics), 3, 6 and 9mis respectively. Total weight gain, feed intake and feed conversion efficiency were not (P>0.05) significantly different across the varying-levels of Tetrapleura tetraptera administered. There were also no differences in feed conversion ratio of birds administered with Tetrapleura tetraptera compared with those on antibiotics. Broiler's gut parameters measured indicated that there were no significant differences (P>0.05) across the varying levels of the Tetrapleura tetraptera extract administered on the broilers. The study demonstrated that administration of Tetrapleura tetraptera extract in water for broilers compared favorably with birds on antibiotics though no significant differences were recorded. 1 results 1
- A study was conducted for 8 weeks to investigate the effect of dietary biscuit waste (BW) replacing maize (M) on performance and carcass characteristic of broilers. A total of 175 day old marshal broiler chicks were used for this study. They were completely randomized and divided into five treatments. Each treatment had five replicates of seven birds per replicate. Five experimental diets were formulated as follows; A: (100%M: 0%BW), B: (75% M: 25%BW), C: (50%M: 50%BW), D: (25%M: 75%BW), E: (0%M: 100%BW) at both starter and finisher phases. Performance indices measured were feed intake, weight gain and feed conversion ratio. The feed intake (F.I.) was affected with increasing level of biscuit waste. There were significant differences (p<0.05) across the treatments with treatment A having the highest value of 2.92kg for F.I and treatment E having the least value of 2.51kg while treatments B, C and D followed the same trend having the following values of 2.73kg, 2.70kg and 2.61kg respectively. Average weight gain showed that there were no significant differences (p>0.05) across the treatments, the values obtained were 1.13kg, 1.09kg, 1.10kg, 1.12kg and 1.10kg for treatments A, B, C, D and E respectively. Feed conversion ratio showed significant differences (p˂0.05) as birds in treatments C, D and E recorded lower values of 2.47%, 2.37% and 2.33% respectively while birds on treatment A had highest value of 2.60%. The carcass weights expressed as percentages of live weights (LW) did not show any significant differences (p>0.05). The result for breast weights showed significant differences (p˂0.05) as birds on treatments four (25% M: 75% (BW) and five (0%M: 100% BW) had lower values of 10.05% (LW) and 11.20% (LW) respectively. Surprisingly, birds on treatment two (75% M 25% BW) had the highest breast meat value of 16.75%. The percentage organ weights showed no significant differences (p>0.05) between liver, heart and spleen but the gizzard weights were significantly different among the treatments with the control having the highest value of 2.88% (LW). It was concluded that biscuit waste could be used as feed for broilers up to 50% replacement levels for maize at the starter and finisher phases without compromising performance and carcass value of broilers. 1 results 1
- A study was conducted to evaluate the effect of Jatropha curcas leaf extract on the performance and carcass characteristics of broiler chickens. One hundred and fifty day old Arbor Acre broiler chicks were used. They were divided into five treatments and each treatment was replicated five times. Treatment one, (Negative control, no antibiotics), Treatment two (positive control, with antibiotics) while treatments three, four and five had varying inclusion levels of the Jatropha curcas leaf extract (0.25 g/100 kg, 0.50 g/100 kg and 0.75 g/100 kg of feed respectively). The birds were raised for a total number forty two days during which, they were fed ad libitum on a deep litter system of management. Weekly weight gained and feed consumed were recorded. Evisceration of carcass was done after forty two days; each part was weighed and recorded. Performance characteristics indicated no significant (P>0.05) difference in feed consumed and feed conversion ratio, but treatment 4 with 0.50 g/100 kg of Jatropha curcas extract has the best feed conversion ratio, but there were significant (P<0.05) differences in total weight gain. 1 results 1
- A study was designed to investigate the combined effects of neem and pawpaw leaves supplementation on performance and carcass characteristics of broiler chickens from 14–56 days of age. 360 one day-old unsexed Arbor acre broiler chickens were randomly allotted to the following diets T1 (0% leaf meal), T2 (0.5% NLM), T3 (2% PLM), T4 (0.5% NLM+PLM), T5 (1% NLM+PLM) and T6 (2% NLM+PLM). Results obtained from the study indicated that supplementation of NLM and PLM improved the dressing percentages, the highest values of 89.29% and 87.55% were obtained for birds on T5 and T6 respectively which were significantly different (p<0.05) when compared with the value obtained from which was 76.83%. The eviscerated weight differs significantly across the treatments, birds on T5 and T6 had significantly better (p<0.05) results of 76.93% and 75.85% respectively compared to treatments 4 and 5 which had 69.33% and 73.13% respectively. Body weight gain, feed consumed and feed conversion ratio of the broiler chickens improved in the treatments fed diets supplemented with leaf meal although and there were no significant (P>0.05) differences. 1 results 1
- A trial was conducted to determine the effect of dietary Biotronics SE® supplementation on haematological and serum parameters of broilers. A total of 120 1-day old Marshall broilers were randomly distributed to four dietary treatments using completely randomized design. Chicks in treatment 1 were fed basal diet (control) while those on treatments 2, 3 and 4 were given basal deits supplemented with 0.1% oxytetracycline HCl only; 0.3% Biotronics SE® only and 0.1% oxytetracycline HCl + 0.3% Biotronics SE®, respectively. Each treatment was a duplicate of fifteen chicks per replicate. The diets were formulated to contain 3000 Kcal/kg ME and crude protein of 23% (Starter) and 20% (finishers). Variations in values obtained for haemoglobin (g/dl) (9.28, 9.69. 10.04 and 10.15) and Mean Cell Volume (MCV) (fl) (107.02, 109.38, 125.43 and 118.31) for birds fed diets 1, 2, 3 and 4., respectively were significantly (p<0.05) different while other haematological parameters measured in both phases were similar (p>0.05). The serum triglycerides (mg/dl)(23.19. 19.29, 23.93 and 19.01) and VLDL (mg/dl) (4.63, 3.85, 5.78 and 3.80) for the Starter birds fed diets 1, 2, 3 and 4, respectively were affected by dietary acidifier inclusion. The serum total proteins and Cholesterol also varied significantly for finishers birds. Generally, most serum indices measured declined in values at the finishers phase compared with corresponding values for Starter. All measured indices were within normal physiological ranges. This study revealed Biotronics SE as a suitable alternative growth promoter for the production of meat type chickens. 1 results 1
- Acidifer 1 results 1
- Acidifier 1 results 1
- Ad-libitum 1 results 1
- Aims: The experiment was conducted to investigate the performance and carcass characteristics of meat-type chicken fed Soybean Meal (SBM) and Sesame/Soybean Meal (SSBM) supplemented with or without microbial phytase. Study Design: The experiment employed a complete randomized design; all data generated were subjected to analysis of variance, P=0.05. Place and Duration of Study: The study was carried out at the Teaching and Research Farm of the University of Ibadan, Nigeria, between October and December, 2011. Methodology: One hundred and sixty-eight unsexed two weeks old Arbor Acre strain chickens were used in a 35-day feeding trial. Two feeding regimes of soybean meal and Sesame/soybean meal based diets were formulated. Each feeding regime comprised of control diet and two levels of phytase units (300 and 600 FTU/kg) of 500 unit /g activity making a total of six dietary treatments. The birds were fed the experimental diets for a 35- and Feed Conversion Ratio (FCR). At the end of the feeding trial, three birds were slaughtered per replicate to evaluate carcass and meat characteristics. Results: The addition of phytase improved the birds’ performance, FI and FCR. Significant (P<0.05) increase was obtained for apparent retention of nitrogen (67.22%), ash (74.85%), ether extract (65.43%), crude fibre (76.22%) and Phosphorus (45.58%). Cooking loss values increased while the Water Holding Capacity (WHC) reduced with microbial phytase supplementation. Conclusion: Sesame/soybean diet supplemented with 300 FTU/Kg microbial phytase gave optimum performance and should probably be adopted as the feeding regime of choice since it also resulted in better nutrient utilization by the birds. 1 results 1
- Aims: This study was carried out to investigate the meat quality attributes of broiler chickens fed onion skin extract and onion skin meal supplemented diets at the finisher stage. Study Design: The experiment employed a complete randomized design; all data generated were subjected to analysis of variance, P=0.05. Place and Duration of Study: The study was carried out at the Teaching and Research Farm of the University of Ibadan, Ibadan, Nigeria, between October and December, 2016 Methodology: Four experimental diets were formulated such that treatment 1 contained the basal diet with synthetic antioxidant, treatment 2 was a basal diet without any antioxidant, and treatment 3 was basal diet supplemented with 30g/kg of onion skin extract while treatment 4 contained basal diet supplemented with 100 g/kg of onion skin meal. One hundred and sixty eight broiler birds were randomly assigned to four treatments of six replicates each at seven birds per replicate. They were raised for 8 weeks. At the expiration of the experiment, three birds from each replicate were randomly selected, tagged, fasted, weighed and slaughtered. Carcass and organs were obtained and weighed. Samples for cooking loss, pH and cooking yield were taken. Thiobarbituric Acid Reactive Substances (TBARS) was employed to assess the shelf stability of the product. Aims: This study was carried out to investigate the meat quality attributes of broiler chickens fed onion skin extract and onion skin meal supplemented diets at the finisher stage. Study Design: The experiment employed a complete randomized design; all data generated were subjected to analysis of variance, P=0.05. Place and Duration of Study: The study was carried out at the Teaching and Research Farm of the University of Ibadan, Ibadan, Nigeria, between October and December, 2016 Methodology: Four experimental diets were formulated such that treatment 1 contained the basal diet with synthetic antioxidant, treatment 2 was a basal diet without any antioxidant, and treatment 3 was basal diet supplemented with 30g/kg of onion skin extract while treatment 4 contained basal diet supplemented with 100g/kg of onion skin meal. One hundred and sixty eight broiler birds were randomly assigned to four treatments of six replicates each at seven birds per replicate. They were raised for 8 weeks. At the expiration of the experiment, three birds from each replicate were randomly selected, tagged, fasted, weighed and slaughtered. Carcass and organs were obtained and weighed. Samples for cooking loss, pH and cooking yield were taken. Thiobarbituric Acid Reactive Substances (TBARS) was employed to assess the shelf stability of the product. 1 results 1
- An experiment was conducted to assess the performance, welfare and digestibility of broilers fed varying forms of feeding regimes. The objective of this work research was investigate the possibility of improving growth performances, digestibility and welfare of broilers using ad libitum, split and restricted feeding. Formulated diet was given in four different forms Ad-libitum (Treatment 1) twice a day meal/split feeding (Treatment 2) thrice a day feeding (Treatment 3) 3 hours restriction feeding (Treatment 4). Experimental design was completely randomized design. 240 broilers were randomly allotted to four treatments with 6 replicates and 10 birds per replicate. Birds were weighed weekly to evaluate their performances, faeces was collected on day 42, to determine digestibility and rectal temperature was taken as a measure of bird's wellbeing. Results showed that there were no significant differences (p≥ 0.05) in performance of birds across treatments but values from birds fed Ad-libitum were higher. Rectal temperature (RT) differ at week 4, birds fed 3 hours restricted feeding had the highest RT (41.62°C) while the least RT were from birds fed Ad-libitum (41.20°C). Significant differences were obtained in digestibility and nutrient utilization of broilers with respect to feeding regimes. Crude protein (CP) digestibility was significantly higher in birds fed 3 hours restriction (81.91%) while birds fed Ad-libitum had the least (46.76%). The digestibility of crude fibre was higher in birds fed 3 hours restricted feeding regime (86.77%) the least was from birds fed thrice a day feeding regime (62.66%). A similar trend was obtained for digestibility of gross energy. Ad-libitum feeding had the highest non-significant performance values but split feeding optimized feed and nutrient utilization thereby enhancing performance and minimizing nutrient waste at the same time. 1 results 1
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