Feeding value in broiler chicken diets of a potato expressing a β-glucanase gene from Fibrobacter succinogenes

2002 ◽  
Vol 82 (1) ◽  
pp. 111-113 ◽  
Author(s):  
J. Baah ◽  
T. A. Scott ◽  
L. M. Kawchuk ◽  
J. D. Armstrong ◽  
L. B. Selinger ◽  
...  
Keyword(s):  
Key Words ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Potato Cultivar ◽  
Transgenic Potato ◽  
Fibrobacter Succinogenes ◽  
Feed Conversion ◽  
Key Words Barley ◽  
Feeding Value ◽  
Digesta Viscosity

Including a transgenic potato cultivar as a source of β-glucanase in CDC Silky barley-based diets for broiler chickens at 0.6 kg t–1 improved (P < 0.05) feed conversion by 8.8%; at 1.2 kg t–1 it reduced (P < 0.05) ileal digesta viscosity by 42%. With improved level and/or activity of expression, transformed potato may have potential as an enzyme additive. Key words: Barley, broilers, β-glucanase, performance, transformed potato

Effects of wet feeding and enzyme supplementation on nutritional value of wheat screenings for broiler chickens

2017 ◽  
Vol 57 (9) ◽  
pp. 1906
Author(s):  
Ghorbanali Sadeghi ◽  
Ahmad Karimi ◽  
Soosan Mohammadi ◽  
Asaad Vaziry ◽  
Mahmood Habibian
Keyword(s):  
Feed Intake ◽  
Broiler Chickens ◽  
Nutritional Value ◽  
Bodyweight Gain ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Entire Study ◽  
Crypt Depth ◽  
Enzyme Supplementation ◽  
Digesta Viscosity

The effects of wet feeding and a multi-enzyme preparation on the nutritional value of wheat screenings (WS) for broiler chicks were investigated. In total, 540 1-day-old Ross-308 broiler chicks were fed a corn–soybean meal-based diet up to 29 days of age. At that time, the birds were randomly assigned to nine diets in a completely randomised design with a 3 × 3 factorial arrangement, including three levels of WS (0%, 25% and 50%, WS0, WS25 and WS50 respectively) and three processing methods (no processing, enzyme supplementation and wet feeding). The enzyme mixture contained endo-1, 4-β-xylanase (200 FXU/g), endo-1, 4-β-glucanase (50 FBG/g), endo-1, 8-β-glucanase (21 FBG/g), hemicellulase (3000 VHCU/g), α-galactosidase (3 GALU/g) and protease (260 U/g) and was supplemented at a level of 6 g/kg of diet. The inclusion of water in wet diets was in the extent of 1.2 kg/kg of diet. During the period from 29 to 49 days of age, feed intake was not affected (P > 0.05) by the inclusion of WS in the diet, whereas chicks fed the WS25 diet had a higher (P < 0.05) bodyweight gain than did those on WS0 diet. The feed conversion ratio (FCR) was improved (P < 0.05) by the inclusion of WS in the diet throughout the study. The feed intake was increased (P < 0.05) by enzyme supplementation to WS50 diet, while bodyweight gain was increased (P < 0.05) by wet feeding. Enzyme supplementation did not affect (P > 0.05) FCR, whereas wet feeding resulted in lower (P < 0.05) FCR over the entire study. The plasma concentration of glucose was increased (P < 0.05) by the inclusion of WS in the diet. The viscosity of the ileal digesta was higher (P < 0.05) in chicks receiving the WS50 diet than that in chicks receiving the other diets. The jejunal villus height was increased (P < 0.05) and the jejunal crypt depth was decreased (P < 0.05) by the inclusion of WS in diet. The jejunal crypt depth was greater (P < 0.05) in chicks receiving the wet diets than in chicks receiving the enzyme-supplemented diets (P > 0.05). In conclusion, the results from the present study indicated that broiler growth performance was improved by the inclusion of WS in the diet and also by wet feeding. These effects were largely compatible with the changes that occurred in the small intestine morphology, but not with those observed for ileal digesta viscosity.

scholarly journals Evaluasi Performa dan Income Over Feed & Chick Cost (IOFCC) Tiga Strain Ayam Broiler yang Beredar di Aceh

2020 ◽  
Vol 20 (2) ◽  
Author(s):  
Zulfan Zulfan ◽  
Zulfikar Zulfikar
Keyword(s):  
Body Weight ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Body Weight Gain ◽  
Economic Value ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Randomized Design ◽  
Different Strains ◽  
Better Than

ABSTRAK. Penelitian ini bertujuan untuk mengevaluasi performa tiga strain ayam broiler yang umumnya dipelihara di Aceh. Materi yang digunakan adalah 150 ekor anak ayam broiler (DOC) strain Cobb 500, CP 707, dan MB 202 masing-masing berjumlah 50 ekor. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) yang terdiri dari 3 perlakuan dan 5 ulangan. Setiap ulangan merupakan unit percobaan yang masing-masing terdiri dari 10 ekor anak ayam. Perlakuan adalah tiga strain ayam broiler: Cobb 500 (P1), CP 707 (P2), dan MB 202 (P3). Parameter yang diamati meliputi pertambahan berat badan, konsumsi ransum, konversi ransum (FCR), mortalitas, dan Income over Feed and Chick Cost (IOFCC). Hasil penelitian memperlihatkan performa broiler dipengaruhi oleh jenis strain. Strain MB 202 dan CP 707 memiliki bobot badan akhir (6 minggu) dan konsumsi ransum nyata (P0,05) lebih tinggi daripada Cobb 500. Angka konversi ransum tidak memperlihatkan perbedaan yang nyata antara ketiga strain pada semua umur panen. Nilai IOFCC tertinggi dipengaruhi oleh jenis strain dan lama pemeliharaan. Dari hasil penelitian dapat disimpulkan bahwa performa broiler dipengaruhi oleh kemampuan adaptasi strain terhadap iklim setempat (pesisir Aceh) pada periode berbeda-beda yang dapat memengaruhi tingkat keuntungannya. Strain Cobb 500 memiliki kemampuan adaptasi lebih baik selama periode awal, sedangkan CP 707 dan MB 202 selama periode akhir. (Evaluation of performances and income over feed chick cost (iofcc) of three broiler chicken strains commonly marketed in Aceh) ABSTRACT. The study aimed to evaluate the performances and Income over Feed and Chick Cost (IOFCC) of three broiler chicken strains commonly marketed in Aceh. As many as 150 chicks of three different broiler strains (50 birds each) were used in this study. The study was performed into Completely Randomized Design (CRD) consists of 3 treatments and 5 replications creating 15 experimental units containing 10 birds each. The treatments were 3 different strains of broiler chickens i.e. Cobb 500, CP 707, and MB 202. The birds were reared up to 6 weeks to expose their performances recorded as final body weight, body weight gain, feed intake, and feed conversion, as well as mortality. Economic value was evaluated by calculating IOFCC. Results of study showed that performances of broilers were significantly (P0,05) influenced by the strains. Strains MB 202 and CP 707 represented more superior than Cobb 500 for 5−6 weeks of raising periods. However, the later was not inferior during initial phase close to 4 weeks. There were no significant differences in FCR among all strains for different ages. The IOFCC related to the strains and their marketing ages. The highest IOFCC was obtained by Cobb 500, CP 707, and MB 202 as they were sold at the ages of 4, 5, and 6 weeks, respectively. In conclusion, the achievements of the performances in various broiler strains were affected by the site climate (Aceh) in different stages of their ages. Cobb 500 had proper adaptation during starter, while CP 707 and MB 202 appeared seem to be better than Cobb 500 during finisher period.

scholarly journals Galacto-oligosaccharides modulate the juvenile gut microbiome and innate immunity to improve broiler chicken performance

2019 ◽  
Author(s):  
Philip J. Richards ◽  
Geraldine M. Flaujac Lafontaine ◽  
Phillippa L. Connerton ◽  
Lu Liang ◽  
Karishma Asiani ◽  
...  
Keyword(s):  
Growth Rate ◽  
Innate Immunity ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Control Diet ◽  
Innate Immune ◽  
Gut Health ◽  
Feed Conversion ◽  
Growth Promoters ◽  
Key Species

ABSTRACTImprovements in growth performance and health are key goals in broiler chicken production. Inclusion of prebiotic galacto-oligosaccharides in broiler feed enhanced the growth rate and feed conversion of chickens relative to a calorie-matched control diet. Comparison of the cecal microbiota identified key differences in abundance ofLactobacillusspp. Increased levels ofL. johnsoniiin GOS-fed juvenile birds at the expense ofL. crispatuswas linked to improved performance (growth rate and market weight). Investigation of the innate immune responses highlighted increases of ileal and cecal IL-17A gene expression counterposed to a decrease in IL-10 and IL-17F. Quantification of the autochthonousLactobacillusssp. revealed a correlation between bird performance andL. johnsoniiabundance. Shifts in the cecal populations of keyLactobacillusspp. of juvenile birds primed intestinal innate immunity without harmful pathogen challenge.IMPORTANCEImprovements in the growth rate of broiler chickens can be achieved through dietary manipulation of the naturally occurring bacterial populations whilst mitigating the withdrawal of antibiotic growth promoters. Prebiotic galacto-oligosaccharides (GOS) are manufactured as a by-product of dairy cheese production, which can be incorporated in the diets of juvenile chickens to improve their health and performance. This study investigates the key mechanisms behind this progression and pin pointsL. johnsoniias a key species that facilitates the enhancements in growth rate and gut health. It also relates the role of the innate immune system in the response to the GOS diet.

scholarly journals Live performance and health of broiler chickens fed diets diluted with whole or crumbled wheat

1995 ◽  
Vol 75 (4) ◽  
pp. 611-614 ◽  
Author(s):  
C. D. Bennett ◽  
H. L. Classen ◽  
C. Riddell
Keyword(s):  
Broiler Chickens ◽  
Broiler Chicken ◽  
Total Mortality ◽  
Maximum Level ◽  
Live Performance ◽  
Whole Grain ◽  
Feed Conversion ◽  
Limited Effect ◽  
Whole Wheat ◽  
Finisher Diets

Broiler chicken diets were diluted with three levels of whole wheat and two levels of crumbled wheat to determine how feeding whole grain and diluting feed with wheat would alter the performance of male and female broilers. Grit was not used. The amount of extra wheat added increased from 5% at 11 d of age to a maximum level of 30% at 31 d of age. Body weight at 41 d of age averaged 2.130 kg for pullets and 2.422 kg for cockerels and was unaffected by diluting with wheat, in whole or crumbled form. Total mortality and cause of mortality were similarly unaffected by dilution and form of wheat. The feed:gain ratio from 11 to 41 d of age was increased significantly for cockerels from 1.75 at zero dilution to 1.84 at maximum dilution. Dilution did not affect the feed conversion of pullets and form did not influence the feed conversion of either sex. Dilution of broiler rations may be profitable because of the limited effect on bird performance. Pelleting all the wheat in poultry rations is unnecessary because bird performance is unaffected by feeding up to 30% whole grain in the finisher diets. Key words: Broiler chickens, whole wheat, pelleting

Feeding value of immature safflower forage for dry ewes

2001 ◽  
Vol 81 (2) ◽  
pp. 289-292 ◽  
Author(s):  
K. Stanford ◽  
G. L. Wallins ◽  
B. M. Lees ◽  
H. -H. Mündel
Keyword(s):  
Key Words ◽  
Conversion Efficiency ◽  
Feed Conversion ◽  
Feeding Trial ◽  
Full Bloom ◽  
Feeding Study ◽  
In Situ Study ◽  
Grass Hay ◽  
Feeding Value

An in situ study compared mature, frost-damaged safflower to full-bloom safflower and mid-bloom alfalfa-grass hay, with the full-bloom safflower and alfalfa-grass hay also used in a ewe (n = 40) feeding study. Feed refusals were higher (P < 0.05) for ewes fed the safflower, but feed conversion efficiency was improved (P < 0.05) for the safflower-fed sheep. Ewes were bred shortly after the 9-wk feeding trial and the proportion of ewes lambing was higher (P < 0.05) in the safflower-fed ewes. Sheep were able to utilise the safflower forage as thorough chewing of spines likely prevented mouth ulceration and the ewes selectively consumed the most nutrient-dense parts of the forage. Key words: Safflower forage, sheep, fertility

THE EFFECT OF TOE CLIPPING AND REDUCED FEEDING TIME ON THE PERFORMANCE OF BROILER CHICKENS

1982 ◽  
Vol 62 (3) ◽  
pp. 971-974 ◽  
Author(s):  
F. G. PROUDFOOT ◽  
H. W. HULAN
Keyword(s):  
Key Words ◽  
Broiler Chickens ◽  
Female Body ◽  
Feed Restriction ◽  
Feeding Time ◽  
Feed Conversion ◽  
Beneficial Effects ◽  
Body Weights

An experiment involving 2000 broiler chickens grown to 49 days was designed to measure the performance of birds subjected to detoeing and restricting feeding time to 16 h per day commencing at 21, 28, 35 and 42 days. No beneficial effects resulted from detoeing. Body weights were reduced for males at 21, 28, 35, 42 and 49 days; however, these differences were significant (P < 0.05) only at 21, 28 and 35 days. Female body weights were reduced (P < 0.01) only at 21 days. Detoeing had no significant effect (P = 0.05) on carcass grades, mortality, or monetary returns. Although feed conversion up to 21 days tended to be enhanced, this advantage did not persist to 49 days. Reducing feeding time to 16 h/day had no significant (P = 0.05) effect on mortality, body weights, feed conversion, percent Grade A carcasses or monetary returns. Key words: Broiler chickens, toe clipping, feed restriction, feed denial

scholarly journals Performance of Bounty Fresh Broiler Chicken Fed Diet Supplemented with Oregano (Plectranthus amboinicus L.) Leaf Meal

2020 ◽  
Vol 2 (2) ◽  
Author(s):  
Lilibeth Somera Languido ◽  
Mark Joker Lamire Marcos ◽  
Oliva Medina Gaffud
Keyword(s):  
Broiler Chickens ◽  
Broiler Chicken ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Leaf Meal ◽  
Randomized Design ◽  
Plectranthus Amboinicus ◽  
Different Levels

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.

scholarly journals Pengaruh Berbagai Bahan Litter Terhadap Konsentrasi Ammonia Udara Ambient kandang dan Performan Ayam Broiler

2012 ◽  
Vol 12 (1) ◽  
pp. 47-51
Author(s):  
Sulaiman Ibrahim ◽  
Allaily Allaily
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Ammonia Concentration ◽  
Feed Consumption ◽  
Feed Conversion ◽  
Ammonia Content ◽  
Consumption Values ◽  
Final Weight ◽  
Black Plastic

The effect of different litter materials on ammonia concentration of the air ambient stall and broiler performanceABSTRACT. The study was conducted to observe the effect of ammonia concentration of broiler chicken coop air to the treatment various types of litter. High ammonia concentrations would interfere with performance of broiler chickens and become a problem for the environment. A good litter quality is expected to address the problem of ammonia that occur in the broiler chicken coop. This study uses a completely randomized, with 5 litter treatments. T0 without treatment repose only black plastic as litter, litter composition T1 100% bran, 50% T2 litter composition husks and Charcoal Shell 50%, T3 50% 50% husk litter composition and zeolite 50%, T4 25% husks litter composition, 25% charcoal, 25% zeolite and 25% of the land. Each treatment was repeated 3 times, each test consisted of eight chickens. Parameters observed in the form of ammonia concentration of air cages at week four, weekly feed intake, weight gain per week, the final weight, feed conversion, and mortality. The results indicate different types of litter treatment was very real influence of ammonia concentration of air enclosure. T4 treatment with a 1:1 blend of each component of the litter that is used successfully absorb such a large aerial ammonia, which indicates the ammonia content of the air is the smallest compared with other treatment 4. While the treatment without litter showed a very large aerial ammonia compared with the treatment. Feed consumption results also showed that the treatment that produces a small value causes ammonia to be markedly higher consumption. Values for weight gain, final weight, feed conversion, and mortality are not significantly affected by various types of litter treatment.

scholarly journals Weight Gain and Feed Conversion of Broiler Chickens in Reviewed from Cage Temperature and Humidity

2021 ◽  
Vol 2 (1) ◽  
pp. 5
Author(s):  
Himatul Oktavia ◽  
Siti Eliana Rochmi ◽  
Tri Wahyu Suprayogi ◽  
Djoko Legowo
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Effect Of Temperature ◽  
Good Effect ◽  
Feed Conversion ◽  
Comfort Zone ◽  
Genetic Management ◽  
Temperature And Humidity ◽  
Selection Of

Background: Broiler chicken production is influenced by several factors, namely genetic, management, and environmental factors. Genetically superior chickens will not produce maximum results if not supported by a comfortable environment for chickens (comfort zone) because they are animals that will grow optimally at a certain temperature range. in addition, humidity also affects the production and health of chickens. So that the selection of the cage becomes important to create comfortable environmental conditions for chickens. Cage with a relatively stable temperature will greatly affect the production results, including body weight and feed conversion. Purpose: To determine the effect of temperature and humidity of semi-enclosed cages on weight gain and feed conversion of broiler chicken. Method: Observation was carried out during a period of maintenance of broiler chickens on farms and data collected in the form of the recording of chicken weight and feed conversion. Result: Temperature and humidity of semi-enclosed cages have a good effect on production results, with chicken harvest weight of 2197.3 grams and feed conversion of 1.52 kg. Conclusion: this study indicate that temperature and humidity have a good influence on weight gain of chickens and feed conversion value.

scholarly journals Growth performance and carcass characteristics of finisher broiler chickens fed diet containing cooked cocoyam tubermeal

2020 ◽  
Vol 46 (4) ◽  
pp. 161-170
Author(s):  
B. C. Anyaegbu ◽  
D. N. Onunkwo ◽  
G. Igwe ◽  
J. Nathaniel ◽  
C. M. Nkwo
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Broiler Chicken ◽  
Body Weight Gain ◽  
Control Diet ◽  
Carcass Characteristics ◽  
Feed Conversion ◽  
Feeding Trial

This study was carried out to evaluate the growth performance and carcass characteristics of finisher broiler chickens fed diet containing cooked cocoyam tubermeal as energy source in place of maize. The proximate composition of cooked cocoyam tubermeal showed that it contained 13.11% moisture, 2.60% ash, 3.90% crude protein, 9.45% crude fiber, 1.85% ether extract and 70.13% NFE. In the finisher feeding trial, the cooked cocoyam tubermeal was used to replace maize at levels of 25%, 50%, 75% and 100% respectively in the control diet. Each finisher diet was fed to a group of 30 finisher broiler chicken for 4 weeks using completely randomized design. Each treatment was divided into 3 replicates of 10 broiler chicks each. The birds were kept on deep litter and were given feed and water ad-libitum. Parameters measured include ifinal body weight, body weight gain feed intake, feed conversion ratio, carcass characteristics and economics of production. In the finisher feeding trial, the feed intake of the finisher broilers on diets 2, 3 and 4 were similar and compared favourably with those on the control diet. The finisher group on 100% CCYM (diet 5) recorded the lowest feed intake possibly because of the dustiness of the feed. The body weight gain of the finisher broilers on diet 2 (25%) cooked cocoyam tubermeal compared favourably with the control group and was significantly (P<0.05) higher than those on other diets. It appeared that the finisher broilers could not tolerate high levels of cooked cocoyam meal due to dustiness of the feed and its anti-nutritional factors. The cost of production per kg finisher broilers was cheapest for diet 5(100% CCYM) (N356.72) and the costliest was for diet 3(50% CCYM) (N588.28). The internal organs expressed as percent of the live weight were not affected by the treatments. In terms of carcass characteristics, the finisher broilers on diet 2(25% CCYM) recorded the highest breast muscle which was significantly different (P<0.05) from other groups. There were no significant different (P>0.05) on percent back cut, drumstick, head, shank, thigh, neck and wings of the finisher broilers on all the treatments. There were no significant differences (P > 0.05) in percent dressed weight of the finisher broilers on cooked cocoyam based diets. The results of the trial have shown that cooking cocoyam corms (Xanthosoma sagittifolium) for 30 minutes was effective for reducing the cyanide oxalate, tannin, phytic acid and saponin content and that cooking did not affect the proximate composition of tannia. Cooked cocoyam tubermeal could be used to replace maize up to 25% in the diet of finisher broiler chicken without affecting body weight gain, feed intake and feed conversion ratio as indicated in this study.

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