scholarly journals Effect of organic acids fed through drinking water on carcass and internal organs of broiler chickens

2021 ◽  
Vol 41 (1) ◽  
pp. 84-94
Author(s):  
O. O. Effiong ◽  
U. E. Umoren ◽  
G. S. Sylvester

The price of Maize as a major source of energy in poultry feeding is becoming increasingly prohibitive in Nigeria hence this study investigated the effect of toasted Earth ball (lcacinia manni) as an alternative energy source. Fresh tubers of lcacinia manni were collected, peeled, washed, sliced and milled into a paste which was further pressed to reduce the initial moisture content using a hand press. The dehydrated paste was transferred to an earthen-pot and toasted at 100C using firewood as fuel until moisture content was reduced tol0-12%. The dried sample was chemically analysed for proximate and anti-nutrient components and later used to formulate five experimental diets which contained 239%crude protein (CP) and 2,800kcalkg of metabolizable energy (ME)for the starter and 20% CP and 2,900kcal/kg of ME in the finisher phases Diet I was the control while diets 2, 3, 4and 5 contained toasted I. manni replacing maize at 15, 30, 45 and 65% levels, respectively. Two hundred and twenty live (225) Anak-2000 day-old chicks of a commercial strain were shared into five experimental groups of 45 birds each which were further divided into three replicates of 15 birds using completely Randomized Design for the experiment that lasted for 56 days. Toasting as a processing method reduced the compositions of hydrogen cyanide (81.89%), total oxalate (62.56%) and soluble oxalate (56.0%). Phytate increased by 20.0% in the toasted sample. Birds that were fed 15% I. manni diet had the highest (P<0.05) daily weight gain and feed intake of 33.21g and 90.07g, compared to other treatment groups including control. Feed conversion ratio did not differ significantly among treatment groups. The level of inclusion of I. manni in all the diets significantly influenced the organs characteristic of the birds. The group of birds fed on the 60% I. manni meal diet had the highest (P<0.05) percentage weight for the gizzard, heart liver proventriculus and intestine It was concluded that toasted I. Mani meal could replace up to 15% of maize as an energy source in broiler diets.

2020 ◽  
Vol 47 (1) ◽  
pp. 174-185
Author(s):  
S. E. Alu ◽  
F. S. Oseze ◽  
E. J. Ogoshi

Tiger nut offal is one of the common agro by products available in appreciable quantity all yaer round especially within the northern part of Nigeria. Its nutritional value is somewhat close to those of maize offal. Therefore, a 56 - day experiment was conducted to evaluate the response of broiler chickens fed graded levels of Tiger nut offal (TNO) as an energy source. Five iso-nitrogenous and iso-caloric diets tagged T1, T2, T3, T4 and T5, were compounded to contain 23 and 20% crude protein and 2800 and 3000 kcal/kg of metabolizable energy for starter and finisher phases, respectively. The TNO was included at 0, 5, 10, 15 and 20% levels in treatments, respectively such that T1 served as the control diet. A total of 200, one day old chicks were allotted to the 5 treatment groups, replicated 4 times and each replicate was allotted 10 birds. Parameters evaluated included growth rate, economics of production, blood parameters and carcass characteristics. The results showed that there was no significant variation (P>0.05) in the values obtained for growth parameters, economics of production, haematological parameters and serum biochemistry. However, there was significant difference (P<0.05) in dressed weight (1155.00 vs. 1350.00 vs. 1350.00 vs. 1525.00 and 1530.00 gbird-1 ) and shanks weight (59.50 vs. 100.00 vs. 67.00 vs. 85.00 and  60.00 gbird-1 ) which increased across the treatments as the levels of inclusion of TNO increased in the diets. Birds fed the diets 15 (T4) and 20% (T5) gave the best results compared to those fed the control and other levels. From the results of this experiment, poultry farmer can use up to 20% of TNO as a replacement for conventional energy source in the diet of broiler chickens without compromising the meat quality and health status of the birds.


Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1539
Author(s):  
Kajetan Kalus ◽  
Damian Konkol ◽  
Mariusz Korczyński ◽  
Jacek A. Koziel ◽  
Sebastian Opaliński

The aim of this research was to evaluate the effect of biochar diet supplementation for broiler chickens on (1) ammonia and odor emissions from manure, (2) feed conversion ratio and daily weight gain, and (3) selected meat quality and sensory parameters. Beechwood biochar (BC, 2 and 4%) and BC–glycerin–aluminosilicates mix (BCM, 3 and 6%) were tested as dietary additives. A total of 750 chicken broilers (Ross 308) were divided into five dietary groups with five replicates per group (n = 5, 30 birds in each replicate) and reared on a littered floor for 5 weeks. Both feed additives showed a significant reduction of ammonia emissions by up to 17%, while the reduction of odor emissions was not statistically significant. The feed conversion ratio increased by 8% for the highest concentration of the mixture. The change of the treated broilers’ average body weight ranged in the last week of the experiment from 0 to −7%, with the most negative effect for the highest dose of the mixture. Sensory analysis of the sous-vide cooked breasts showed no significant differences.


2013 ◽  
Vol 46 (3) ◽  
pp. 81-85 ◽  
Author(s):  
Jonathan Ogagaoghene Isikwenu

Abstract The effects of replacing groundnut cake (GNC) with urea-treated and fermented brewer’s dried grains in weaner rabbits diets on the performance, haematology and serum chemistry was investigated. Urea-treated and fermented brewer’s dried grains were used to replace GNC at 0, 25, 50, 75 and 100% levels in weaner rabbits´ diets. Diets were formulated to be isonitrogenous and isocaloric to provide 18% crude protein and 11.00 MJ/kg metabolizable energy. Weaner rabbits of mixed breeds and sexes, aged 8 weeks, were randomly allocated to five treatment groups on equal weight and sex basis. They consisted of two rabbits per replicate and six rabbits per treatment. They were fed ad libitum in hutches for ten weeks. Significant (P < 0.05) differences were observed in final body weight, daily body weight gain, feed intake, feed conversion ratio, white blood cell count (WBC), glucose and sodium content for all treatment groups. Results indicate that urea-treated and fermented brewers dried grains can be used to replace up to 75% GNC (18.00% of the diet) as an alternative plant protein source. Mortality level (3 - 7%) was normal and evenly spread across treatment groups.


1982 ◽  
Vol 62 (3) ◽  
pp. 869-875 ◽  
Author(s):  
H. W. HULAN ◽  
F. G. PROUDFOOT

Sorghum grain (SG) contained more crude protein (103.5 g/kg) and ash (17.0 g/kg) but less crude fiber (17.7 g/kg) and total lipid (22.6 g/kg) than corn. The SG contained 0.37% ± 0.02 tannin, had a higher apparent metabolizable energy value than corn or wheat and contained all of the amino acids considered essential for chickens at levels in general between those of corn and wheat. Two experiments were carried out to ascertain the nutritive value of SG as a partial replacement for corn and wheat in practical poultry diets using 320 male and 320 female Cobb chicks in each. Starter (finisher) diets fed from 0–21 days (22–42 days) contained the following levels of SG: 15 (19); 30 (39); 45 (58)%. The diets were isoenergic and isonitrogenous. The inclusion of up to 45% SG in the starter diet and up to 58% in the finisher diet had no significant effect on mortality, live body weight, feed conversion or percentage of grade A carcasses. Key words: Broiler chickens, sorghum grain, milo, diets


2013 ◽  
Vol 56 (1) ◽  
pp. 1028-1038 ◽  
Author(s):  
A. Ptak ◽  
D. Józefiak ◽  
B. Kierończyk ◽  
M. Rawski ◽  
K. Żyła ◽  
...  

Abstract. The effect of different phytases on the performance response, nutrient utilization and tibia characteristics of chickens was investigated. The five pelleted diets were the following: positive control (PC) with added monocalcium phosphate; negative control (NC) formulated with equivalency values of phytase for Ca and digestible P; and three further diets where different phytases were individually added to the NC diet at 500 FTU/kg. The phytases were derived either from Aspergillus (phytase I), or E. coli (phytases II and III). Compared to PC, the performance parameters, as well as apparent metabolizable energy (AMEn), mineral retention, bone breaking force and tibia mineral content were suppressed by the reduction of dietary Ca and digestible P. All phytases enhanced the overall body weight gains and feed conversion ratio in comparison with NC, but none outperformed PC. Only phytase II improved AMEn compared to NC and PC group. However only phytase I outperformed NC group in terms of mineral retention and P retention was higher than phytase II and III. No significant differences were observed in fat digestibility and N retention. Bone strength among phytases did not differ and all improved this parameter compared to the NC diet. However, even though all phytases enhanced tibia minerals content, the improvement was less pronounced with phytase III. Moreover, the differences in all analysed tibia minerals between phytase III and II were significant suggesting that even among 6-phytases derived from and expressed in the same organism, different efficacy or mode of action can occur.


1992 ◽  
Vol 68 (2) ◽  
pp. 329-335 ◽  
Author(s):  
A. T. Haustein ◽  
R. H. Gilman ◽  
P. W. Skillicorn ◽  
V. Guevara ◽  
F. Díaz ◽  
...  

The growth of broiler chickens on diets containing various levels of Lemna gibba was evaluated. Groups of broiler chicks were fed on diets containing 0-400 g Lemna gibba/kg for 3 weeks. These chickens were then changed to standard diets for a further 2 weeks. As the level of Lemna gibba increased, feed consumption and weight gain decreased. However, when diets were changed to the standard diet, compensatory growth was observed. In a second experiment, diets were formulated with a metabolizable energy of 5.02 MJ (1200 kcal)/kg Lemna gibba and included a finer-milled Lemna gibba. Chickens were fed on diets containing 0-300 g Lemna gibba/kg for 4 weeks. Each group was then divided into two subgroups. For the next 2 weeks one of these sub-groups was maintained on the experimental (Lemna gibba) diets (LL), while the other sub-group was changed to a standard diet (LS). Bird fed at levels above 150 g Lemna gibba/kg had decreased consumption and weight gain. These birds when changed to a standard diet tended to have increased weight gain compared with chickens continuously fed standard rations. LS birds had significantly higher weight gains and feed consumption and lower feed conversion than LL birds. In contrast to older birds, chicks fed on Lemna gibba at high concentrations showed growth retardation. When changed back to a standard diet they demonstrated normal or compensatory growth.


ZOOTEC ◽  
2020 ◽  
Vol 40 (2) ◽  
pp. 676
Author(s):  
Sintia Tempomona ◽  
Betty Bagau ◽  
Fenny R. Wolayan ◽  
Mursye N. Regar

EFFECT OF SUBTITUTION OF BASIC RATIONS WITH PAPAYA LEAF MEAL ON BROILER PERFORMANCE.  This research aims to know the effect of substitution of basic rations with papaya leaf meal on broiler performance. Using 100 broiler chickens aged 2 weeks with an initial weight rate of 278.75 g. The design used was complete random design (CRD) consisting of 4 treatments and 5 replications. The arrangement of the treatment was as follows: R0 = 100% basal ration (RB) + 0% papaya leaf meal (PLM), R1 = 95% basal ration + 5% PLM, R2 = 90% basal ration + 10% PLM, R3 = 85% basal ration + 15% PLM. The results of the analysis of variance showed that the replacement of a portion of basal rations with papaya leaf meal had a significantly different (P < 0.05) on feed intake, daily weight gain and feed conversion. Based on the results of this study, It can be concluded that the using of papaya leaf meal can replace a portion of ration until 5% level.Keywords: Performance, papaya leaf meal, broiler chickens


2020 ◽  
Vol 44 (1) ◽  
pp. 245-253
Author(s):  
M. A. Oguntoye ◽  
O. M. O. Idowu

This study was conducted to investigate the effect of dietary copper and probiotic supplementation on growth performance and carcass characteristics of broiler Chickens. A total of 180-day old marshal broiler chicks of mixed sex were randomly allotted to six treatment groups of 30 birds each. The Treatments were divided into three replicates of ten birds each; starter and finisher diets were formulated and fed for a period of fifty-six days. The dietary treatments were subjected to completely randomized design experimental layout which was made up of probiotic (0 and 500ppm) and copper (0, 125 and 250mg).The chicks were fed the broiler starter diet for the first 28 days and broiler finisher for the last 28 days. Treatment effect on broiler body weight, feed intake and feed conversion ratio were determined on a weekly basis. Data obtained were analyzed using analysis of variance (ANOVA) and, Duncan's Multiple Range Test was used to separate significant means. Dietary supplementation of copper and probiotic had no significant (P> 0.05) effect on final weight (FW), daily weight gain (DWG), feed intake (FI), and feed conversion ratio (FCR) at the starter phase of the experiment. However, at finisher phase, inclusion of probiotic resulted in higher significant (P < 0.05) values for FW (2214.12g/b) DWG (60.22g/b/d), FI (159.02g/b/d), and FCR (2.64). The carcass yields of the broilers were significantly (P< 0.05) influenced by copper and probiotic supplementations. However, lower value (1.07%) was obtained for abdominal fat in broilers fed 250mg Cu/kg supplemented diet. The study concluded that supplementation of copper and probiotics resulted in improved growth performance and carcass yield of broiler chickens.


Author(s):  
Mesut Karaman ◽  
Mehmet Öcal

This study, aimed to determine the effects of different light regimen and day/night feeding on some performance criteria of 1104 broiler chickens during summer season. At the beginning of second week they were separated according to their sexes, and experiment had 2 × 6 replications. The 1st group, as control, received continuous lighting (daylight + lightening during night) and fed ad-libitum. The 2nd group was treated with continuous lighting too, but they had no access to feed between10:00 and 16:00 o’clock during the last three weeks. The 3rd group was also exposed to continuous lighting but had no access to feed between10:00 am and 16:00 pm. Fourth group received continuous lighting but had no access to feed between 24:00 pm and 06:00 am. Fifth group received continuous lighting, but they were not fed between 24:00 pm and 06:00 am during the last three weeks of experimental process. Sixth group had no access to feed box during 24:00 pm and 06:00 am, when they had not been exposed to light as well. There were no notable differences in live weight gain of male and female birds for all treatment groups, and similarly differences among feed consumption and feed conversion ratios were not remarkable statistically regardless of the sexes of chickens. There were significant differences in hot-cold carcass yields of the 3rd and 6th treatment groups for male birds and 6th treatment group for female birds. The differences for carcass weights of male birds were statistically significant and 3rd and 6th treatments groups were tend to be relatively higher than the other treatment groups. The differences among treatment groups for carcass weights of female birds, however, were not significant and similarly the effects of the treatments on the mortality rate was found to be in significant for same birds. Lightning (24h) and feeding ad - libitum affected the performance of the birds adversely, whilst restricted feeding and lightning process reduced the yield-loss the animals during the summer season.


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