Dietary arginine from 15 to 35 days of age affects feed intake and carcass yield in White Pekin ducks

2013 ◽  
Vol 53 (10) ◽  
pp. 1041 ◽  
Author(s):  
Chao Wang ◽  
Ming Xie ◽  
Wei Huang ◽  
Jun-Ying Yu ◽  
Yu-Long Feng ◽  
...  
Keyword(s):  
Neuropeptide Y ◽  
Feed Intake ◽  
Muscle Growth ◽  
Bodyweight Gain ◽  
Breast Muscle ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Pekin Ducks ◽  
Dietary Treatments ◽  
Total Muscle

An experiment was conducted to investigate the effect of dietary arginine (ARG) provided from 15 to 35 days of age on the feed intake and carcass yield of White Pekin ducks. Sixty 14-day-old White Pekin ducks were allotted to one of three dietary treatments, with 10 males and 10 females per treatment. Birds were kept individually and fed diets containing 0.60, 0.85 or 1.70% ARG for 3 weeks. Ducks that were fed the diet containing 1.70% ARG had greater bodyweight gain (P < 0.05), higher feed intake (P < 0.05), and a lower feed conversion ratio (P < 0.05) than those fed the diet containing 0.60% ARG. The hypothalamic contents of neuropeptide Y and leptin at 35 days of age were not affected by dietary ARG levels. Breast muscle yield increased with each increment of dietary ARG content (P < 0.05), and birds fed the diet containing 1.70% ARG had highest leg muscle yield (P < 0.05) and total muscle yield (P < 0.05); in contrast, the abdominal fat yield was not affected (P > 0.05) by dietary ARG. No interaction between dietary ARG level and sex was observed for the above mentioned indices (P > 0.05). In conclusion, dietary ARG supplementation promoted appetite without changing the concentrations of neuropeptide Y or leptin in hypothalamus, and ARG supplementation stimulated muscle growth, especially breast muscle growth, in growing White Pekin ducks of both sexes.

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 Paper products as litter materials for broilers: performance, carcass defects, footpad lesions.

1969 ◽  
Vol 90 (1-2) ◽  
pp. 1-8
Author(s):  
Héctor L. Santiago ◽  
Kenneth H. Aponte ◽  
Abner A. Rodríguez ◽  
José A. Orama ◽  
Mireille Argüelles
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Small Animal ◽  
White Paper ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Recycled Paper ◽  
Carcass Yield ◽  
Randomized Design ◽  
Moisture Percentage

Recycled paper products were evaluated as litter material for broilers; parameters were growth performance, carcass quality, and footpad problems. One hundred sixty-eight broiler chicks were raised to market age (42 d) in an open-sided poultry house located at the Lajas Agricultural Experiment Station Small Animal Research Farm. Birds were assigned to 12 floor pens bedded with either rice hulls (RH) as control; a 50:50 mix of RH and shredded white paper (SWP); or a 50:50 mix of RH and shredded newspaper (SNP) according to a completely randomized design replicated four times. Traits measured were body weight, feed intake, feed conversion, carcass yield, breast blister score, footpad burn score, and mortality. Litter moisture percentage was assessed at 14, 28, and 42 d of age. Litter material had no influence on body weight, breast blister score, or bird mortality. However, birds raised on SWP had lower feed intake and higher body weight than those raised on RH and SNP. No significant differences in feed conversion were observed among treatments from 7 to 28 d of age. At 35 and 42 d, birds raised in SWP had significantly lower feed conversion than controls, whereas feed conversion of birds raised in SNP did not differ from that of the other treatments. No differences were found for carcass yield among treatments. At all sampling times, litter moisture percentage was significantly higher in SNP than in the control. No litter caking problems were observed in any of the treatments. Significant differences in footpad burn scores were observed among all treatments, with birds raised on SNP having higher scores (severer lesions), than those on SWP and RH.The results suggest that recycled paper products could be an excellent alternative bedding material for broilers. The use of SWP as litter appears to improve broiler performance and reduce the incidence of footpad problems.

Influence of soybean bioactive peptides on performance, foot pad lesions and carcass characteristics in broilers

2018 ◽  
Vol 6 ◽  
Author(s):  
M. R. Abdollahi ◽  
F. Zaefarian ◽  
Y. Gu ◽  
W. Xiao ◽  
J. Jia ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Biologically Active ◽  
Feed Conversion ◽  
Functional Protein ◽  
Inclusion Level ◽  
Poultry Diets ◽  
Foot Pad ◽  
Dietary Treatments

SummaryThe influence of different inclusion levels of a biologically active peptide derived from soybeans by enzymatic hydrolysis, on growth performance, foot pad lesions and carcass characteristics in broilers were examined in this study. Starter (1 to 21 d) and finisher (22 to 42 d) diets, based on maize and soybean meal, were subjected to seven inclusion levels of a commercial soybean bioactive peptide (SBP) product (Fortide, Chengdu Mytech Biotech Co. Ltd., Chengdu, Sichuan, China) at 0.0, 1.0, 2.0, 3.0, 4.0, 5.0 and 6.0 g/kg of diet. All diets were equivalent in respect of energy density, digestible amino acids and other nutrients. A total of 840, one-day-old male broilers (Ross 308) were allocated to 42 pens (20 birds/pen), which were randomly assigned to seven dietary treatments. During the starter period, there was no significant effect of SBP on weight gain and feed intake of the birds. However, a significant (P < 0.05) effect of SBP was observed for the feed conversion ratio (FCR), with SBP inclusion at 3.0 g/kg and above showing lower (P < 0.05) FCR values compared to the diet with no SBP. No effect of SBP was observed for weight gain and feed intake over the whole trial period. However, SBP inclusion tended (P = 0.06) to influence the FCR of birds. Increasing SBP inclusion level resulted in gradual decrease in FCR values, with SBP inclusion at 5.0 and 6.0 g/kg showing lower FCR values compared to the diet with no SBP. Overall, the present study suggests that dietary supplementation of SBP in broiler diets has the potential to improve FCR and to be used as a novel functional protein in poultry diets.

The influence of calcium and phosphorus in prelayer diets and their interaction with sodium chloride and potassium sulfate in layer diets on egg production and shell quality in crossbred layers

1981 ◽  
Vol 21 (110) ◽  
pp. 287
Author(s):  
H Karunajeewa ◽  
M Fox
Keyword(s):  
Sodium Chloride ◽  
Feed Intake ◽  
Egg Production ◽  
Calcium Content ◽  
Bodyweight Gain ◽  
Potassium Sulfate ◽  
Feed Conversion ◽  
Shell Quality ◽  
Egg Shell ◽  
Tibia Ash

In a 43x2 factorial experiment, 576 White Leghorn x Australorp pullets attaining 50% egg production at about 180 days of age were given from 22 to 26 weeks of age pre-layer diets with 10.4 or 25.8 g kg-1 calcium and 6.2 or 10.9 g kg-1 phosphorus. From 26 to 74 weeks of age these pullets were given layer diets with three levels (0, 1.5 and 7.0 g kg-1) of added sodium chloride and two levels (0 and 6.0 g kg-1) of added potassium sulfate. The calcium content of the pre-layer diet had no significant effect on feed intake, bodyweight gain or tibia-ash content between 22 and 26 weeks of age, or on egg production, egg weight, feed conversion efficiency and mortality in the subsequent laying phase. The higher level (25.8 g kg-1) of calcium improved (P<0.05) the shell quality of the first eggs laid and prevented a decline in shell quality due to excess sodium chloride (7.0 g kg-1) in the layer diet. A phosphorus level of 10.9 g kg-1 of the pre-layer diet reduced (P<0.05) feed intake, and in the subsequent laying phase both hen-housed egg production and efficiency of feed conversion were reduced (P<0.05). The adverse effect on feed conversion efficiency was alleviated by adding potassium sulfate to the diet. The level of phosphorus in the pre-layer diet had no significant effect on tibia-ash content or egg shell quality. The dietary level of sodium chloride had no significant effect on egg weight, feed intake and bodyweight gain. The inclusion of sodium chloride at a level of 7.0 g kg-1 diet tended to depress rate of lay by 2.0% and during the first half of the laying cycle, increased mortality by 12.5% (P<0.05) and reduced egg shell weight and thickness (P<0.05) in birds given pre-layer diets with a low calcium content. A daily intake of 137 to 139 mg of sodium per bird was not adequate for maintenance of egg production and efficiency of feed conversion in crossbred layers. The sodium requirement of a crossbred layer given a diet containing meat and bone meal is about 160 mg/day. The adverse effects due to either a low intake of sodium or a high level of sodium chloride in the diet were alleviated by the inclusion of 6.0 g kg-1 potassium sulfate in the diet. The inclusion of potassium sulfate (6.0 g kg-1) in the layer diet increased rate of lay by 2.1% (P<0.05).

Carcass composition and quality of meat from Pekin ducks finished on diets with varying levels of whole wheat grain

2017 ◽  
Vol 57 (10) ◽  
pp. 2117 ◽  
Author(s):  
D. Kokoszynski ◽  
M. Kotowicz ◽  
A. Brudnicki ◽  
Z. Bernacki ◽  
P. D. Wasilewski ◽  
...  
Keyword(s):  
Pectoral Muscle ◽  
Carcass Composition ◽  
Breast Muscle ◽  
Wheat Grain ◽  
Feed Conversion ◽  
Yellow Colour ◽  
Commercial Diet ◽  
Pekin Ducks ◽  
Whole Wheat

The aim of the research was to determine the effect of replacing part of a commercial feed mixture with whole wheat grain on the bodyweight, carcass composition and meat quality of Pekin ducks. A total of 160 1-day-old sexed SM3 Heavy hybrid ducks were used in the study. Two diets were given during the rearing period (36–49 days): (1) a complete commercial diet ad libitum, and (2) restricted amounts of a commercial diet (85%) and whole wheat grain (15%). Each treatment consisted of four replications of 20 birds each. Adding whole wheat grain to the ration resulted in no significant (P > 0.05) changes in bodyweight (3475.8 g), feed conversion ratio (0–49 days, 2.50 kg DM intake/kg liveweight gain) dressing percentage (70.1%) and carcass tissue composition in ducks at 49 days of age. Breast muscle (superficial pectoral muscle) from ducks fed the commercial diet and whole wheat grain was significantly (P < 0.05) lighter in colour (L* = 39.9 vs 38.0) and a deeper yellow colour (b* = 1.7 vs 0.8), as compared with that from birds receiving the complete commercial diet alone. Breast muscle (superficial pectoral muscle and profound pectoral muscle) also had significantly (P < 0.05) higher threonine (3.9 vs 5.1 g/100 g DM) and valine content (4.0 vs 5.0 g/100 g DM). However, leg muscle (thigh and drumstick muscles) from experimental ducks had a significantly (P < 0.05) lower content of crude fat (5.1% vs 4.2%) and collagen (1.5% vs. 1.1%), as well as less glutamic acid (14.2 vs 12.5), proline (3.5 vs 3.2), alanine (3.0 vs 2.5) and arginine (6.5 vs 5.6 g/100 g DM), as compared with the control birds.

scholarly journals Effect of dietary garlic and thyme seed supplementation on the production performance, carcass yield and gut microbial population of broiler chickens

1970 ◽  
Vol 1 ◽  
pp. 269
Author(s):  
Phyo Htet Htet Kyaw, Kyaw San Win, Khin Khin Lay ◽  
Kyaw Kyaw Moe ◽  
Aye Aye Maw, Khin Hnin Swe
Keyword(s):  
Broiler Chickens ◽  
Microbial Population ◽  
Control Diet ◽  
Production Performance ◽  
Feed Additive ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Garlic Powder ◽  
Significant Difference ◽  
Dietary Treatments

A total of 200 Cobb 500 male broilers were randomly allocated to 4 treatments consisting of 5 replications with 10 chicks each in order to evaluate the effect of dietary garlic and thyme seed supplementation on the production performance, carcass yield and gut microbial population. Treatments were control diet (T1), control diet with 1% thyme seed powder (T2), control diet with 1% garlic powder (T3) and control diet with 0.5% thyme seed and 0.5% garlic powder (T4). Feed intake, body weight, weight gain, feed conversion ratio (FCR), carcass yield was not significantly (p>0.05) improved by dietary treatments compared to control. Escherichia coli (E. coli) count in the gut of broilers did not show significant difference among dietary treatments. However, Lactobacilli count in the gut of broilers significantly (p<0.05) increased in T2 compared to that of T1. Lactobacilli count in the gut of broilers received T1, T3 and T4 did not differ significantly (p>0.05) with each other. It was concluded that thyme seed was reliable as feed additive in the broiler diet and could provide positive advantages to the colonization and proliferation of Lactobacilli.

scholarly journals Growth performance of starter broiler starter chicks fed soaked and fermented baobab (Adansonia digitata) seed meal based diets

2021 ◽  
Vol 48 (1) ◽  
pp. 69-75
Author(s):  
A. R. Akintunde ◽  
I. H. Saidu ◽  
M. A. Oguntoye ◽  
H. K. Mohammed ◽  
A. Mustapha ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Seed Meal ◽  
Feed Conversion ◽  
Treatment Groups ◽  
Feed Cost ◽  
Final Weight ◽  
Dietary Treatments

Means of cutting down cost of feed resources in order to bridge the wide gap between demand and supply of animal protein in livestock production is a great concern in the poultry industry. This study was conducted to investigate the effect of feeding diets containing soaked and fermented Baobab seed meal (BSM) on the growth performance of broiler starter chicks. A total of 150, one-day old chicks were randomly distributed into five treatment groups. Treatments were replicated three times with 10 chicks per replicate in a completely randomized design (CRD). The dietary groups were designated as T1 for control (0 % BSM), T2 (7.5 % SBSM), T3 (15.0% SBSM), T4 (22.5% FBSM) and T5 (30 % FBSM). Parameters monitored include final weight, weight gain, feed intake, feed conversion ratio, feed cost per kg gain (N) and mortality (%) The experiment lasted for 4 weeks. The results showed that the dietary treatments had significant (P<0.05) effect on all the parameters measured. Final weight and total weight gain were similar and significantly (P<0.05) higher in birds fed diets T2 and T4 when compared to other dietary treatments. However, birds in T5 group had the least significant (P<0.05) values 366.67 and 217.34 g/bird respectively. Daily weight gain (7.76 g/bird/day), total and daily feed intake (873.33 g and 31.19 g/bird/day) of birds followed similar trend and were significantly (P<0.05) lower in T5 group compared to other treatments. Feed conversion ratio of birds fed diet T5 had significantly (P<0.05) higher value (4.29) when compared to those in other treatment groups. Feed cost per kg gain (N) was significantly (P<0.05) lower and similar in birds fed T2, T3 and T4 when compared to values obtained in the control group (N253.27) and T5 (N 327.52). Mortality (%) only occurred in birds fed T5. It was therefore concluded that inclusion of 22.5% fermented baobab seed meal in broiler diets improved performance and had no negative effect on the health status of birds.     Des moyens de réduire le coût des ressources alimentaires afin de combler le defi posé à cause de la demande et l'approvisionnement en protéines animales dans la production animale est une grande préoccupation dans l'industrie avicole. Cette étude a été menée pour étudier l'effet des regimes alimentaires contenant de la farine de graines de baobab trempée et fermentée (le 'BSM') sur les performances de croissance des poussins de départ. Un total de 150 poussins âgés d'un jour ont été répartis au hasard en cinq groupes de traitement. Les traitements ont été répliqués trois fois avec 10 poussins par réplique dans une conception complètement randomisée (le 'CRD'). Les groupes diététiques ont été désignés comme T1 pour le contrôle (0% BSM), T2 (7,5% SBSM), T3 (15,0% SBSM), T4 (22,5% FBSM) et T5 (30% FBSM). Les paramètres surveillés comprennent le poids final, le gain de poids, la prise alimentaire, le taux de conversion alimentaire, le coût de l'alimentation par kg de gain (N) et la mortalité (%). L'expérience a duré 4 semaines. Les résultats ont montré que les traitements diététiques avaient un effet significatif (P <0,05) sur tous les paramètres mesurés. Le poids final et le gain de poids total étaient similaires et significativement (P<0,05) plus élevés chez les oiseaux nourris avec les régimes T2 et T4 par rapport aux autres traitements diététiques. Cependant, les oiseaux du groupe T5 avaient les valeurs les moins significatives (P <0,05) 366,67 et 217,34 g / oiseau respectivement. Le gain de poids quotidien (7,76 g / oiseau / jour), l'apport alimentaire total et quotidien (873,33 g et 31,19 g / oiseau / jour) des oiseaux ont suivi une tendance similaire et étaient significativement (P<0,05) inférieurs dans le groupe T5 par rapport aux autres traitements. Le rapport de conversion alimentaire des oiseaux nourris au régime alimentaire T5 avait une valeur significativement plus élevée (P <0,05) (4,29) par rapport à ceux des autres groupes de traitement. Le coût de l'alimentation par kg de gain (N) était significativement (P <0,05) plus faible et similaire chez les oiseaux nourris T2, T3 et T4 par rapport aux valeurs obtenues dans le groupe témoin (N253,27) et T5 (N 327,52). La mortalité (%) n'est survenue que chez les oiseaux nourris au T5. Il a donc été conclu que l'inclusion de farine de graines de baobab fermentée à 22,5% dans les régimes alimentaires des poulets de chair améliorait les performances et n'avait aucun effet négatif sur l'état de santé des oiseaux.

scholarly journals Impacts of Graded Levels of Metabolizable Energy on Growth Performance and Carcass Characteristics of Slow-Growing Yellow-Feathered Male Chickens

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 461 ◽  
Author(s):  
K. F. M. Abouelezz ◽  
Y. Wang ◽  
W. Wang ◽  
X. Lin ◽  
L. Li ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Shear Force ◽  
The Body ◽  
Metabolizable Energy ◽  
Breast Muscle ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Metabolizable Energy Intake ◽  
Slow Growing

A dose-response study was conducted to investigate the metabolizable energy (ME) requirement for Lingnan chickens from 9 to 15 weeks of age. One thousand two hundred 8-week-old slow-growing yellow-feathered male chickens were allotted to five dietary ME levels (2805, 2897, 2997, 3095 and 3236 kcal/kg). The results revealed that the daily metabolizable energy intake increased (p < 0.01), whereas the feed intake and feed:gain ratio decreased linearly (p < 0.01) with the increment in dietary ME level. The final body weight and daily gain of the highest ME treatment tended (p > 0.05) to be greater than those obtained with the lower ME levels. The fat content in breast muscle showed a quadratic response (p < 0.05) to the increase in dietary energy level. The shear force values of breast muscle in the 2897, 3095 and 3236 kcal/kg treatments were lower (p < 0.05) than those of the 2997 kcal/kg treatment. In conclusion, among the tested ME levels, 3095 kcal/kg was adequate for feed intake, shear force, and plasma uric acid, and 3236 kcal/kg tended to increase the body weight, body gain, and feed conversion ratio of Lingnan males between 9 and 15 weeks of age; further studies are still required for testing higher levels.

scholarly journals Short Communication. Sodium chloride levels in pacu (Piaractus mesopotamicus) fingerling feeds free of fish meal

2022 ◽  
Vol 20 (1) ◽  
pp. e06SC01-e06SC01
Author(s):  
Natalia C. Aguiar ◽  
Keyword(s):  
Feed Intake ◽  
Experimental Period ◽  
Aquatic Organism ◽  
Average Weight ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Randomized Design ◽  
Final Weight ◽  
Completely Randomized Design ◽  
Average Weight Gain

Aim of study: To evaluate the effects of increasing NaCl levels on the zootechnical performance of pacu fingerling. Area of study: The experiments were conducted at the Aquatic Organism Production and Reproduction Systems Laboratory belonging to the Federal University of Paraná (UFPR), in the Palotina Sector, Paraná Estate, Brazil. Material and methods: Seven hundred and fifty fingerlings with an average weight of 3.41 ± 0.09 g were distributed in circular boxes, in a completely randomized design consisting of six treatments and five replications. Treatments comprised soybean- and maize-based diets containing increasing levels of NaCl (0.00, 0.25, 0.50, 0.75, 1.00 and 1.25%). The experiments were conducted for 50 days. At the end of the experimental period the fish were fasted for 24 hours, anesthetized, weighed and measured to calculate zootechnical performances. Performance data were subjected to an analysis of variance followed by Tukey’s test when significant differences were found between the means (p<0.05). Main results: The influence (p<0.05) of dietary NaCl levels on final weight, feed intake, apparent feed conversion, specific growth rate, average weight gain, clean trunk production, head carcass yield, headless carcass yield, feed intake and survival was assessed. The results indicate that non-salt treated fingerlings along with the 0.25% salt inclusion treatment led to better feed use, as evidenced by apparent feed conversions of 1.64 and 2.02, respectively. Research highlights: The inclusion of NaCl in pacu fingerling soybean and maize-based diets is not recommended.

scholarly journals Wafer-type biscuit waste in meat-quail diets

2020 ◽  
Vol 21 ◽  
Author(s):  
Lucas Silva Gonzaga ◽  
Sandra Roseli Valerio Lana ◽  
Geraldo Roberto Quintão Lana ◽  
Romilton Ferreira Barros Junior ◽  
Ana Patricia Alves Leão ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Nutritional Composition ◽  
Production Performance ◽  
Economic Viability ◽  
Feed Conversion ◽  
Financial Return ◽  
Carcass Yield ◽  
Different Levels ◽  
Performance Trial

Abstract Two experiments were carried out to evaluate the nutritional composition and effect of different levels of inclusion of wafer-type biscuit waste (WW) in the diet of European quail on production performance, carcass yield and economic viability. In the metabolizability trial, WW showed 87.45% DM, 4,128.53 kcal/kg GE, 3,833.14 kcal/kg AME, 3,818.92 kcal/kg AMEn, 9.37% CP and 17% EE. The metabolizability coefficients of DM, GE, EE and CP were 93.20, 92.85, 93.01 and 47.16%, respectively. In the performance trial, feed intake decreased linearly (P<0.05) from 22 to 42 and from one to 42 days of age. Weight gain and feed conversion were not influenced (P>0.05) by WW inclusion. The WW inclusion levels did not influence (P>0.05) carcass yield. The diet with 20% inclusion of WW provided the best financial return. Wafer-type biscuit waste can be included up to the level of 20% in quail diets without compromising production performance, carcass yield or the economic viability of the activity.

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