Experimental comparison between selection for residual feed consumption and feed conversion ratio in Tribolium

1998 ◽  
Vol 115 (1-6) ◽  
pp. 233-245 ◽  
Author(s):  
J. L. Campo ◽  
H. Turrado
2011 ◽  
Vol 27 (3) ◽  
pp. 769-776 ◽  
Author(s):  
H. Pingel

Increasing breast muscle percentage by selection for breast layer thickness (muscle and skin) of living ducks by needle probe improves carcass quality as could be demonstrated by experiments and by applied breeding programs. In addition direct selection for individual feed conversion ratio can increase the efficiency of duck meat production. Divergent selection for feed conversion ratio from the age of 4 - 7 weeks over 11 generations has differentiated the feed efficiency by about 25 %. Causes for the reduction in feed conversion ratio are lower fat content of carcass, lower locomotor activity, higher enzymatic activity (alkaline phosphatase and creatinkinase in blood plasma) and better feed protein utilization. Because of lower feed consumption in the line selected for lower feed conversion ratio the emission of nitrogen and phosphorus via manure was reduced by about 39 and 26 %, respectively. That means, selection for better feed efficiency is not only an important economical but also an important ecological factor.


JURNAL TERNAK ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 36
Author(s):  
Tetty Barunawati Siagian ◽  
Nabilah Khoirunnisa Nugraheni

One of the comestibles that have high nutritional value and are easy to obtain is chicken. The higher demand for chicken must be accompanied by an increase in production. It is important for the breeder of broiler chicken to choose high quality Day Old Chick (DOC) from the broiler breeder which also has high quality and productivity. The type of broiler breeder that is grown in PT. Karya Indah Pertiwi is Ross 308. Observations were made when the chickens were 18th to 21st weeks old in 6 henneries totaling about 10,000 chickens. The performance of broiler breeder observed were feed consumption, bodyweight gain, feed conversion ratio, and uniformity. Feed consumption of broiler breeder at 18th to 21st week was 659.4 g/chicken, 700,583 g/chicken, 742,116 g/chicken, 767.2 g/chicken. Bodyweight gain at 18th to 21st week was 143.51 g/chicken, 193.3 g/chicken, 63.43 g/chicken, 167.96 g/chicken. Feed conversion ratio at 18th to 21st week was 4.5, 3.6, 11.6, 4.5. The uniformity at 18th to 21st week was 77%, 81%, 81%, 81%. In conclusion, the value of feed consumption for broiler breeder at PT. Karya Indah Pertiwi was increasing every week. Bodyweight gain at 20th week was lower than 18th, 19th, and 21st week. The value of feed conversion ratio at 20th week was higher than at 18th, 19th, and 21st week. Chicken uniformity value at 18th week was not good it was at 77%, while at the 19th, 20th, and 21st week it was quite good at 81%.


ZOOTEC ◽  
2016 ◽  
Vol 37 (1) ◽  
pp. 8
Author(s):  
Claudia Mangelep ◽  
F. R. Wolayan ◽  
M. R. Imbar ◽  
I. M. Untu

THE EFFECT OF PARTLY SUBSTITUTION OF DIET WITH WHITE CHINESE CABBAGE (Brasscia pekinensia L) WASTE PRODUCT ON BIOLOGICAL PERFORMANCE OF BROILER CHICKEN The present study was conducted to characterize the effect of white Chinese cabbage (Brasscia pekinensia L) waste product as an alternative feed source for broiler chicken.  The experiment was conducted at Faculty of Animal Husbandry’s experimetal station for 21 days using 60 MB-202 broiler chicken. The experiment was started at 21 days of age and terminated at 42 days of age. Birds were allocated to 20 experimental battery cage, 3 birds in each cage. Completely Randomized Design (CRD) with 5 treatments and 4 replications was employed to analyze experimental data. Treatment diets were formulated as follow: R0 = 100% basal diet and 0% white Chinese cabbage waste product; R1 = 95% basal diet and 5% white Chinese cabbage waste product; R2 = 90% basal diet and 10% white Chinese cabbage waste product; R3 = 85% basal diet and 15% white Chinese cabbage waste product; and R4 = 80% basal diet and 20% white Chinese cabbage waste product. Parameters measured were: 1) daily feed consumption; 2) daily gain; and 3) feed conversion ratio (FCR). The results of the study during which feed consumption (138,09-141,57g), weight gain (64,95-68,53g), and feed conversion (2,07-2,12). The results showed that partly substitution (up to 20%) of basal diet with white Chinese cabbage waste product gave non significant (P > 0.05) effect on feed consumption, daily gain, and feed conversion ratio (FCR) of broiler chicken. It can be concluded that white Chinese cabbage waste product can be used up to 20% feed gives good results on broiler performance. Key Words: Substitution, white Chinese cabbage waste product, broiler performance


2021 ◽  
Vol 888 (1) ◽  
pp. 012072
Author(s):  
Siti Khairunnisa ◽  
Sumiati ◽  
Cece Sumantri ◽  
Wiwin Winarsih

Abstract This study aimed to evaluate the effect of zinc supplementation in various diets on the performance and health status of IPB-D2 chickens. Subsequently, about 180 one-week-old IPB-D2 chickens were used in the study and were fed the treatment diets for 12 weeks. Also, this study employed a completely randomised factorial design with six treatments and three replications of ten birds each. These treatment diets included A1, which contained nutrients based on SNI (2013) without Zn supplementation, A2 which is a combination of A1 and 60 ppm of Zinc, B1 which contained nutrients 5% higher than SNI without Zn supplementation, B2 which is a combination of B1 and 60 ppm Zinc, C1 which contains nutrients 10% higher than SNI without Zn supplementation, and lastly, C2 which is a combination of C1 and 60 ppm of Zinc. Furthermore, the data were analysed using ANOVA, and the parameters observed were the body weight, body weight gain, feed consumption, feed conversion ratio, blood profile and the villi surface area of the jejunum. Consequently, the results showed that C2 significantly (P<0.05) increased the body weight and body weight gain when fed to the finisher and grower chickens, respectively. More so, when the finisher chickens were fed the 10% SNI diet, there was an increased body weight gain and also a significantly (P<0.05) decreased feed conversion ratio. Furthermore, the addition of 60 ppm zinc increased haemoglobin significantly (P<0.05), whereas C2 decreased leukocytes significantly (P<0.05) in chicken blood. However, the treatments had no effect on feed consumption in the villi surface area of the jejunum. Therefore, the study concluded that supplementing the IPB-D2 chickens with 60 ppm zinc in a 10% SNI diet resulted in the best performance and health status.


2017 ◽  
Vol 5 (1) ◽  
pp. 1
Author(s):  
Eka Handayanta

<p class="Style2"><em>The aim of this research to determine the effect of supplementation of tofu. </em><em>tempe, and soy sauce waste in ration on male local sheep performance. This </em><em>research was carried out during three month, take place on July until October </em><em>200E in Minifarm Dept. of Animal Science, Agriculture Faculty of Sebelas Maret </em><em>University, located in Jatikuwung. Gondangrejo, Karanganyar. It used </em><em>12 </em><em>male </em><em>local sheeps with average body weight of </em><em>15.86 ±0.93 </em><em>kg, divided into four treatments and three replications, each replication consist of one sheep.</em><em> </em><em>The ration consisted of king grass only as basal diet, </em><em>as many as four percent </em><em>base on body weight. The treatment given is in the form of feed supplement, that </em><em>namely without supplement </em><em>(RO), </em><em>250 </em><em>gram tofu waste (R1), </em><em>250 </em><em>gram tempe </em><em>waste </em><em>(R2), and </em><em>250 </em><em>gram soy sauce waste </em><em>(R3). </em><em>The data variables collected </em><em>were </em><em>feed consumption, dry and organic matter digestibility, crude protein </em><em>consumption, energy consumption, average daily gain, and feed conversion ratio. </em><em>All of data except average daily gain was analyzed by completely randomized </em><em>design one way classification. While average daily gain was analyzed by </em><em>covariance analyze. The result were significant followed by Duncan new multiple </em><em>range test.</em><em> </em><em>The result showed that average of </em><em>R0, RI, </em><em>R2 and </em><em>R3 </em><em>for feed consumption </em><em>430.52; 720.44; 704.44; 549.08 </em><em>gram/day, dry matter digestibility (%) </em><em>61,07; 72,46; 69,68: 63,60, organic matter digestibility (%) </em><em>64,41: 74,94; 72.41; 64,7 1, </em><em>crude protein consumption 47.66; 106.77; 85.83; 73.70 gram/day, energy consumption </em><em>281.82; 482.65; 432.67; 330.83 </em><em>gram/day, average daily gain </em><em>50.00.</em><em><sup>­</sup></em><em>1X00: 116.19; 38.10 </em><em>gram/day and feed conversion ratio </em><em>8.74; 5.61; 6.06; 15.2. </em><em>The result of variance analyze showed that feed supplementation have highly </em><em>significant effect (P&lt;0.01) on all of the data variable colected. Conclusion of this </em><em>research was supplementation of tofu waste and tempe waste could improved </em><em>performance, while soy sauce waste could not improved the performance of male </em><em>local sheep.</em></p><p><em> </em></p><em>Key words : sheep, tofu waste, tempe waste, soy sauce waste, performance</em>


1998 ◽  
Vol 1998 ◽  
pp. 45-45
Author(s):  
R.M. Herd ◽  
J.A. Archer ◽  
P.F. Arthur ◽  
E.C. Richardson

Feed is the single largest cost in most animal production systems. Feed conversion ratio (FCR) is a commonly used measure of growth efficiency. Previous research has shown that FCR is moderately heritable and highly related to growth rate. While selection for FCR is beneficial to those feeding growing cattle for slaughter, any associated increase in the size of breeding females will mean this benefit will be at a cost to the calf breeder, as larger breeding cows require more feed.


2010 ◽  
Vol 89 (8) ◽  
pp. 1590-1598 ◽  
Author(s):  
S. Varkoohi ◽  
M. Moradi Shahr Babak ◽  
A. Pakdel ◽  
A. Nejati Javaremi ◽  
M. Zaghari ◽  
...  

2011 ◽  
Vol 12 (2) ◽  
pp. 92-100
Author(s):  
Tuty Maria Wardiny ◽  
T Eduard Azwar Sinar ◽  
Desmayati Zainuddin

An experiment was conduted to evaluate the effectiveness level of corn substituted by Morinda citrifolia leaf meal in broiler ration. The use of Morinda citrifolia leaf meal substituted for corn in ration is expected to improve feed conversion in broiler chickens and produce chicken meat that safe for consumption and free of chemical antibiotics residues . Completely Randomized Design (CRD) was used to analyze data obtained from this research. One hundred and sixty chicleas (7 days aged) divided into 5 (five) treatments with 4 (four) replications and each replication consisted of 8 (eight) chicleas. Ration of treatments were a negative control diet (R0), 1% Morinda citrifolia leaf meal (R1), 2% Morinda citrifolia leaf meal (R2), 3% Morinda citrifolia leaf meal (R3) and commersial ration (R4). All treatments rations were added a natural feed additive that consist of 0,125% Curcuma and.0,075% Turmeric meal. Measured parameters were feed intake, weight gain, feed conversion ratio, mortality, percentages of carcas and abdominal fat. Results showed that feed consumption, weight gain, and feed conversion ratio were significantly (p <0.05) influenced by treatments. Mortality, percentage of carcas and abdominal fat were not significantly (p >0.05) influenced by ration treatments. Mortality rates in chickens using a ration of treatment was 0%, while using the control diet 0,78% (1 bird). The counclusion showed that the substitution of 1-2% Morinda citrifolia leaf meal in ration has better performance compared to the control diet, with improvement of feed conversion ratio was 7.57 and 9.2% respectively was more efficient than the control diets


1970 ◽  
Vol 10 ◽  
pp. 29-35 ◽  
Author(s):  
T. B. Rijal ◽  
D. B. Nepali ◽  
R. A. Sah ◽  
M. P. Sharma

An experiment was conducted from 18th October, 2006 to 18th January, 2007 at IAAS Livestock Farm, Rampur, Chitwan to determine the substitution effects of soybean meal with brewer's dried grain (BDG) on the performance, economics and meat traits of swine production. Starter, grower and finisher diets were formulated containing 18, 16, and 14% CP respectively with 3000 Kcal/kg ME and adequately supplemented with required vitamins, minerals and amino acids. The treatments were: diet without brewer's dried grain -T1 (control diet), diet substituted with 10% brewer's dried grain-T2, diet substituted with 20% brewer's dried grain-T3, diet substituted with 30% brewer's dried grain-T4 and diet substituted with 35% brewer's dried grain-T5. Twenty weaned piglets having 7.37 to 7.94 kg live weight were housed in individual pens. Five piglets were randomly assigned to the five treatments following a randomized complete block design (RCBD) considering each individual as a replication. Fortnightly live weight, daily feed consumption, income over feed and pig cost, and different meat traits of pigs were recorded. The effect of replacing formulated diets with various level of brewer's dried grains on body weight gain was significant (p<0.01) with higher level of substitution resulting lower live-weight at the end of each of starter, grower and finisher diet period. The average body weight of piglets substituted with 35%BDG (27.00kg) and 30%BDG (39.75kg) were significantly lower (p<0.01) compared to the weight of piglets receiving 0% (65.75kg), 10% (64.25kg) and 20% (60.25kg) BDG replaced diets at the end of 3 months experimental period. A significant reduction (P<0.01) in average daily feed consumption were also recorded with increasing level of BDG in the diet. Better feed conversion ratio (FCR) was observed in T2 at early period which at finisher stage T3 diet resulted significantly better FCR which was at par with T1 and T2 diet fed group. However, T5 diet resulted the poorest feed conversion ratio of 5.26, 4.92 and 5.87 for starter, grower and finisher respectively. There was reduction in feed cost with different levels of BDG substitution in diet of pig. Highest income (in per cent) over expenditure (109.01%) was found in T2 followed by T1, T3, and T4. Lowest income over expenditure (-8.2%) was found in T5. Highest dressing percent (71.87%) was recorded in T1 and lowest (70%) in T5 diet fed group. Inclusion of 10-20% BDG seems most acceptable level of substitution of SBM. However, this result needs to be verified under farmer's management condition before recommendation.Key words: Brewer's dried grains; Swine performanceDOI: 10.3126/njst.v10i0.2820 Nepal Journal of Science and Technology Volume 10, 2009 December Page: 29-35  


Author(s):  
Lilibeth Somera Languido ◽  
Mark Joker Lamire Marcos ◽  
Oliva Medina Gaffud

A total of (120) day old Bounty Fresh colored broiler chickens were carried out in a completely randomized design to evaluate the effect of different levels of oregano leaf meal (OLM) on the growth performance at a dietary levels of 0, 3 ,6 and 9% respectively.   Results showed significant in terms of cumulative feed consumption, gain weight and feed conversion ratio. Broilers given 6% of level of oregano (T3) had the heaviest body weight on the seven week of age with a mean 1955.25 grams while the lightest was those broilers without the supplementation of oregano leaf meal (T1) with a mean of 1743.75 grams. The inclusion of OLM as fed diet were the most efficient feed converter and therefore, has the potential to increase rapid growth and improve vitality and livability of colored broiler chicken. Insignificant result was obtained in terms of the percentage rate of growth, dressing percentage with and without giblets and feed conversion ratio as revealed by the analysis of variance. However, in terms of the income over feed and chick costs, Colored broiler chicken fed with 6% oregano leaf meal had the highest return of Php 88.89 and the lowest return was those broilers without oregano with a return of Php 50.47.The results suggest that OLM at 6% level can be safely used as feed ingredients to the broilers without any deleterious effect.


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