scholarly journals Use of qualitative feed restriction as a management strategy for finishing broilers

2015 ◽  
Vol 42 (2) ◽  
pp. 151-157
Author(s):  
A. B. I. Udedibie ◽  
F. I. Peter-Nwachukwu ◽  
H. O. Obikaonu
Keyword(s):  
Weight Gain ◽  
Compensatory Growth ◽  
Abdominal Fat ◽  
Feed Restriction ◽  
Broiler Chicks ◽  
Standard Diet ◽  
Feeding Trial ◽  
Broiler Production ◽  
Significant Difference ◽  
Quality Diet

A 5-week experiment was conducted to investigate the effects of qualitative feed restriction through the use low-quality diet on finisher broiler performance, and to determine if sufficient compensatory growth can be achieved at that phase of broiler production. Seventy two (72) 4 weeks old broiler chicks of Anak strain weighing of the average 1.0kg were randomly distributed into two groups, A and B, using completely randomized design. Each group was replicated 3 times with 12 broiler chicks per replicate and each replicate housed in a pen measuring 1.5 m x 2 m. Broilers in group A were given a standard broiler finisher diet continuously for 5 weeks while broilers in group B received a low-quality cheap diet based mainly on palm kernel cake and wheat offal for the first two weeks and then placed on the standard diet for the remaining three weeks of the trial. The birds were weighed at the beginning of the trial and weekly thereafter. At the end of the feeding trial, 4 birds were randomly selected from each group, weighed, sacrificed, de-feathered, eviscerated and their internal organs as well as the abdominal fat, weighed. There was no significant difference in feed intake between the groups (P>0.05) at the end of the trial but the group on the high fibre low-quality diet consumed significantly (P<0.05) more feed during the 2 weeks. Daily body weight gain of the birds on the low-quality diet was lower than that of their counterparts in the control diets in the first 2 weeks but remarkably and progressively increased up to the end of the feeding trial. There was, however, no significant difference between the groups (P>0.05) in the final body weights. There were no significant differences in internal organ weights of the groups (P>0.05). However, abdominal fat weight was significantly (P<0.05) reduced by qualitative feed restriction. Feed cost of production (N/kg weight gain) were N348.69 and N343.78 for the control and qualitative feed restricted groups, respectively. The results have shown that sufficient compensatory growth can be achieved in broiler production the period of production is just 5 weeks.

Effect Of L-Thyroxin Hormone (T4) On Compensatory Growth In Broiler Chicks

2002 ◽  
Vol 2002 ◽  
pp. 84-84
Author(s):  
A. Hassanabadi ◽  
A. golian
Keyword(s):  
Feed Efficiency ◽  
Broiler Chickens ◽  
Compensatory Growth ◽  
Specific Dynamic Action ◽  
Abdominal Fat ◽  
Feed Restriction ◽  
Broiler Chicks ◽  
Fat Pad ◽  
Heat Increment ◽  
Maintenance Requirements

Purpose of researches in feed restriction area is improvement of feed efficiency, decrease of carcass fat content and abdominal fat pad size (Plavnik and Hurvitz,1991).Birds after early life feed restriction have less maintenance requirements due to decrease of heat increment and decrease of basal metabolic rate and specific dynamic action of food (Forsum et al.,1981).In many investigations, compensatory growth have not observed (Summers et al.,1990).It seems administration of Thyroid hormone after feed restriction can induce compensatory growth. The objective of the present study was to investigate the effect of early feed restriction and L-Thyroxin administration after early feed restriction on compensatory growth in broiler chickens.

scholarly journals Compensatory growth in broiler chicks fed on Lemna gibba

1992 ◽  
Vol 68 (2) ◽  
pp. 329-335 ◽  
Author(s):  
A. T. Haustein ◽  
R. H. Gilman ◽  
P. W. Skillicorn ◽  
V. Guevara ◽  
F. Díaz ◽  
...  
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Compensatory Growth ◽  
Metabolizable Energy ◽  
Feed Consumption ◽  
Lemna Gibba ◽  
Broiler Chicks ◽  
Standard Diet ◽  
Feed Conversion ◽  
High Concentrations

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.

scholarly journals The Grain Replacement Value of Processed Cassava in Broiler Finisher Rations

2021 ◽  
Vol 2 (2) ◽  
pp. 277-284
Author(s):  
F. C. Obioha
Keyword(s):  
Growth Rate ◽  
Liver Weight ◽  
Abdominal Fat ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Fat Percentage ◽  
Carbohydrate Source ◽  
Gain Ratio ◽  
Weight Percentage ◽  
Significant Difference

EIGHT hundred Starbrow day-old broiler chicks were raised on deep litter on a commercial broiler starter ration. At the end of seven weeks the chicks were randomly and equally alloted to five experimental broiler finisher rations in which maize and gari constituted the main carbohydrate source in the proportions 58:0, 39:16, 29:24.5, 19:33 and 0.49% of ration, respectively. The protein source, groundnut cake, was varied accordingly such that the five rations were isonitrogenous and isocaloric. All other ingredients were mixed in the same amounts for all five rations which were balanced for essential nutrients. All chicks received ad libitum intake of feed and water from the eight week to the thirteenth week when the experiment was concluded. Feed consumption, growth rate, feed efficiency, dressed carcass percentage, liver Weight and abdominal fat percentage were used as parameters to evaluate the relative efficacy of the five ration treatments.  Birds on gari rations consumed 3.2% less feed on the average, than those on the Control maize ration, for nearly identical gains. Feed/gain ratio was, therefore, slightly lower for the gari treatments, the lowest value coming from the ration in which maize/gari ratio was 29%:24.5%. Average body weights, rate of gain and feed gain ratio were not significantly different. Variations in carcass and organoleptic measurements indicated no significant differences from dressed carcass percentage, liver weight percentage, tenderness, juiciness, colour or general acceptability. However, abdominal fat percentage was significantly [P<0.001] larger in the gari rations than the control maize ration. This value was highest in the ration that contained only gari as the major carbohydrate source. There was no significant difference in the iodine number of the abdominal fat of the five treatments.  The results of this study suggest that gari can replace all the maize in broiler finisher rations or constitute up to 49% of the whole ration, without any decrease in growth rate or carcass quality of broilers, provided such a ration is balanced for protein and amino acids. The best substitution level from this study appears to be at 50%, or 29% of the whole ration.

scholarly journals THE EFFECT OF FEED RESTRICTION AT THE STARTER PHASE ON PERFORMANCE OF BROILER CHICKENS

2021 ◽  
Vol 34 (1) ◽  
pp. 69-76
Author(s):  
M Tion ◽  
M. T. Orga ◽  
I. A. Adeka
Keyword(s):  
Weight Gain ◽  
Mortality Rate ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Live Weight ◽  
Feed Restriction ◽  
Control Group ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Ad Libitum

Two hundred and twenty five day old straight run broiler chicks were utilized in completely randomized design to test the effect of restricting feed intake of four groups of chicks to 92.5% 85.0%, 77.5% and 70.0% of the unrestricted (control) group in the starter phase and following adlibitum feeding for all groups in the finisher phase. The treatments were simply designated as A, B, C, D and E. The starter phase in which the restriction was carried out lasted 28 days and the finisher phase 42 days. Parameters evaluated during the starter and finisher phases included; growth rate, feed conversion ration and mortality rate. Results show gain in weight among all groups while the group fed diet B and the control had comparable weight gain at the starter phase. The percentage weight difference between the control and each of the other dietary groups was: 4.4%, 8.4%, 8.6% and 10.4% for the treatments B, C, D and E respectively. Feed gain ration improved as the level of restriction became stricter. Following ad-libitum feeding of all grops at the finisher phase, the feed restricted groups at the starter phase voraciously increased their feed intake, thus, producing comparable performance values with the unrestricted (control) group in weight gain in the 8th week of the study. Although birds in all groups averaged more than 2000g final live weight in 10weeks, significant differences exist between groups that were fed diets C, D, and E that were restricted at the starter phase, an indication that complete compensatory growth was not obtainable. Feed gain ration improved for restricted groups. Mortality rate did not show any trend attributable to levels of feed restriction. This study shows that broiler chicks fed restricted levels of balanced diet at the starter phase but later fed ad-libitum at the finisher phase could attain a finished weight of about 2000g or more at a market age of 10 weeks (70 days) with an improvement in feed gain ration.

scholarly journals PERFORMANCE AND CARCASS EVALUATION OF BROILER CHICKS FED SHRIMP WASTE MEAL SUPPLEMENTED WITH SYNTHETIC AMINO ACIDS

2021 ◽  
Vol 25 (1) ◽  
pp. 17-21
Author(s):  
A. O. FANIMO ◽  
O. O. ODUGUWA ◽  
Y. O. JIMOH ◽  
A. O. FARONBI
Keyword(s):  
Crude Protein ◽  
Fish Meal ◽  
Liver Weight ◽  
Abdominal Fat ◽  
Feed Consumption ◽  
Broiler Chicks ◽  
Shrimp Waste ◽  
Feeding Trial ◽  
Dietary Crude Protein ◽  
Synthetic Amino Acids

A feeding trial was conducted using 104 one week-old anak broilier chicks to evaluate the replacement value of shrimp waste meal (SWM) for fish meal (FM) in broiler diets. Fish meal contribution to the dietary crude protein of the brioiler dietsat was replaced with SWM 0, 33, 66 and 100% of graded levels. Weight gain and feedconverstion ratio were significantly (P > 0.05) reduced with SWM replacing FM at 100% at both the starter and finisher phases. No significant differences (P >0.05) were observed for feed consumption. mortality increased with an increased levle of SWM in the diet at the starter phase. Liver weight increased (P <0.05) with increased level of SWM significantly (P <0.05) increased the abdominal fat. Result of this present study show that the SWM could partially replace 66% of the crude protein of FM in broiler diets without negatively affecting performance or carcass quality 

Response of broilers to dietary levels of thevetia cake

1995 ◽  
Vol 125 (2) ◽  
pp. 307-310 ◽  
Author(s):  
J. O. Atteh ◽  
S. A. Ibiyemi ◽  
A. O. Ojo
Keyword(s):  
Weight Gain ◽  
Mortality Rate ◽  
Feed Intake ◽  
Control Diet ◽  
Nutrient Retention ◽  
Broiler Chicks ◽  
Standard Diet ◽  
Dietary Level ◽  
The University ◽  
Broiler Feed

SUMMARYTwo experiments done at the University of Ilorin, Nigeria, in 1992/93 investigated the effects of dietary levels of thevetia cake on the performance and nutrient retention of broilers. In Expt 1, dayold broiler chicks were fed either a control diet or diets containing 5, 10 or 15% thevetia cake during a 4-week period. In Expt 2, day-old broiler chicks were fed a standard diet until 4 weeks of age and were then switched to diets containing 0, 5, 10 or 15% thevetia cake. Inclusion of thevetia cake in broiler diets, irrespective of level of inclusion, drastically reduced feed intake and weight gain (p < 0·01) at both the starter and finisher stages. Dietary thevetia cake also caused a significant increase in mortality rate (P < 0·01). There was a reduction in protein and fibre retention and dietary ME with increases in the dietary level of thevetia cake at both the starter and finisher stages (P < 0·05). It is concluded that thevetia cake is toxic to broilers and needs further processing before it can effectively be used as an ingredient in broiler feed.

scholarly journals Effect of tulsi (Ocium sanctum) leaves extract as a growth promoter in broiler productio

2017 ◽  
Vol 3 (2) ◽  
pp. 226-232
Author(s):  
Achinta Kumar Biswas ◽  
Md Mamunur Rahman ◽  
Md Zakir Hassan ◽  
Salma Sultana ◽  
Mohammad Mahmudur Rahman ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Body Weight Gain ◽  
Ocimum Sanctum ◽  
Control Group ◽  
Broiler Chicks ◽  
Growth Promoter ◽  
Significant Difference ◽  
Bacterial Sensitivity ◽  
Hematological Changes

This study was conducted to determine the efficacy of tulsi (Ocimum sanctum) leaves extract as a growth promoter in broilers from January to June 2013 under Dept. of Pharmacology, Bangladesh agricultural University, Mymensingh-2022, Bangladesh. Fourty number of day old broiler chicks were taken and after seven days divided into two groups A and B. The B group was supplemented with tulsi leaves extract @ 1ml/litre in drinking water. Weekly observations were recorded for live body weight gain up to 5th weeks and blood test was performed at 17th and 35th days age of broiler to study hematological changes between control A and treatment B group. No significant difference in hematological changes was observed in both treatment and control group in 1st week of age but significant change in body weight gain was observed on 35th day. They are 1500 g (control) and 1650 g (treated). The cost of production and economic study was carried out and it was observed that net profit in control group was 5.33 T.K/Kg broiler and in treatment group was 13.33 T.K/Kg broiler. Bacterial sensitivity test was positive in case of Escherichia coli and produced zone of inhibition 0.5 cm and other was negative.Asian J. Med. Biol. Res. June 2017, 3(2): 226-232

scholarly journals Effect of Aqueous Extract of Telfairia occidentalis Leaf on the Performance and Haematological Indices of Starter Broilers

2012 ◽  
Vol 2012 ◽  
pp. 1-4
Author(s):  
Onu P. N.
Keyword(s):  
Drinking Water ◽  
Weight Gain ◽  
Growth Performance ◽  
Aqueous Extract ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Highest Weight ◽  
Telfairia Occidentalis ◽  
Significant Difference ◽  
Haematological Indices

This experiment was conducted to determine the effect of aqueous extract of Telfairia occidentalis (Fluted Pumpkin) leaf on the performance and haematological indices of starter broilers. A total of 200, 8-day-old broiler chicks were randomly allotted to five (5) treatments, each with 4 replicate groups containing 10 chicks and fed with standard starter broiler diets. Telfaria occidentalis leaves extract (FPLE) was added at 0, 40, 80, 120, and 160 mL/litre of drinking water. Growth performance and haematological indices were evaluated. Results showed that there was significant () difference in weight gain, feed conversion, and protein efficiency ratios of the birds among the treatments. Birds fed 80 ml FPLE/litre of water had significantly the highest weight gain and the best feed conversion and protein efficiency ratios. There was no significant () variations in the feed and water intakes of the birds. Results also show no significant () difference in haematological indices of birds among the treatments. The results of this study indicate that, for enhanced weight gain and feed conversion efficiency, birds should be fed 80 mL FPLE/litre of water.

scholarly journals Effects of dietary ammonium sulphate (AS) on the performance and abdominal fat of broilers

2021 ◽  
Vol 30 (1) ◽  
pp. 9-14
Author(s):  
J. O. Oyedeji ◽  
J. O Atteh ◽  
O. O Ogbonini
Keyword(s):  
Weight Gain ◽  
Ammonium Sulphate ◽  
Feed Intake ◽  
Abdominal Fat ◽  
Standard Diet ◽  
Gain Ratio ◽  
Protein Retention ◽  
Phase 0

Two experiments were designed to investigate the response of broilers to dietary inclusion of ammonium sulphate. In experiment 1, day old chicks were fed diets with 0, 1, 2 or 3 % ammonium sulphate (AS) during the starter phase (0-4 weeks). In experiment 2, broilers chicks were raised on a standard diet from 0 - 4 weeks of age and then switched to diets with 0, 1, 2 or 3% ammonium sulphate during the finisher phase ( 5-8 weeks). In experiment 1, feed intake was significantly (P<0.05) suppressed by the dietary ammonium sulphate, while weight gain at market age was not significantly affected (P>0.05), however, in experiment 2, both feed intake and weight gain at market age were significantly suppressed (P<0.05) by the dietary ammonium sulphate. There was no significant effect of dietary ammonium sulphate on feed to gain ratio among broilers in any of the two experiments (P>0.05). Dietary ammonium sulphate did not affect broilers liveability at any of the period. Protein retention was comparable (P>0.05) while fat availability was significantly reduced (P<0.05) at 3% inclusion of ammonium sulphate in broilers diets. Abdominal fat was significantly increased (P<0.05) at 2% dietary ammonium sulphate during the starter phase while there was no significant effect (P>0.05) of dietary ammonium sulphate on the abdominal fat during the finisher period. It was concluded that ammonium sulphate can be used as a feed intake suppressant and would be more effective in the broiler starter diet than in the finisher diet.

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