scholarly journals Quantitative and qualitative feed restriction for broilers

2021 ◽  
Vol 10 (12) ◽  
pp. e339101220447
Author(s):  
Thiago de Sousa Melo ◽  
José Humberto Vilar da Silva ◽  
José Jordão Filho ◽  
Fernando Guilherme Perazzo Costa ◽  
Patrícia Emília Naves Givisiez ◽  
...  
Keyword(s):  
Crude Protein ◽  
Control Diet ◽  
Essential Amino Acids ◽  
Feed Restriction ◽  
Broiler Performance ◽  
Randomized Design ◽  
Ad Libitum ◽  
Completely Randomized Design ◽  
Al Treatment ◽  
Economical Alternative

The objective of this study is to evaluate the influence of five feed restriction programs (FRP) on broiler performance and carcass yield. 425 Cobb 500® broilers were distributed in a completely randomized design with five FRPs and five replicates with 17 broilers. The FRPs were: Program 1 (P1): consumption ad libitum (AL) of control diet from 14 to 42 days; P2: quantitative restriction (QTR) of 10% of AL consumption from 14 to 28 days and AL consumption from 29 to 42 days; P3: AL consumption from 14 to 28 days and QTR from 29 to 42 days; P4: qualitative restriction (QLR) of 10% of the level of crude protein and essential amino acids from 14 to 28 days and AL consumption from 29 to 42 days; and P5: AL consumption from 14 to 28 days and QLR from 29 to 42 days. The broilers of the AL treatment gained more weight (p≤0.01), but had a similar FCR (P>0.05) compared to broilers submitted to QTR from 29 to 42 days. In addition, broilers fed QTR from 14 to 28 days presented a lower FI and a better FCR (p≤0.01) in relation to broilers fed QLR of 14 to 28 (P4) and 29 to 42 days (P5). The broilers fed QTR of 14 to 28 days diet presented a similar FCR as broilers fed AL. The 10% reduction in AL consumption of 14 to 28 d is a viable economical alternative to feed broilers up to 42 days of age.

scholarly journals Crambe meal in broiler feeding

2020 ◽  
Vol 9 (8) ◽  
pp. e828986702
Author(s):  
Dayane Josiane Vieira ◽  
Sandra Regina Freitas Pinheiro ◽  
Keila Abadia Barbosa ◽  
Danielly Rodrigues Fernandes Moreira ◽  
Leilane Rocha Barros Dourado ◽  
...  
Keyword(s):  
Total Protein ◽  
Crude Protein ◽  
Control Diet ◽  
Breeding Period ◽  
Feed Conversion ◽  
Total Period ◽  
Crambe Meal ◽  
Randomized Design ◽  
Meal Protein ◽  
Completely Randomized Design

This study aimed to evaluate the performance of broilers fed a diet in which the total protein has been replaced by the protein of the crambe meal. The experiment was used 630 male chickens (Cobb® 500) from 8 to 42 days of age, distributed in a completely randomized design with five treatments, six replications of 21 birds per plot. The treatments were: control diet (0%) and diets containing 3, 6, 9 and 12% of crambe meal protein in replacement of the total protein of the feed. The performance was evaluated in the initial phase (8 to 21 days), growth (22 to 42 days) and total (8 to 42 days). Carcass and cuts was evaluated at 43 days of age. Diets containing crambe meal promoted lower feed intake compared with to the control diet in all evaluated phases. For weight gain, a worse result was observed with increased inclusion of crambe protein, with a linear decrease compared to those who did not receive crambe in the total breeding period. It was found that for the total period the best feed conversion was obtained with 6% of the inclusion of crambe protein in comparison to the crambe-free diet. Carcass, breast and thigh weights decreased with a diet containing 12% of the crambe protein. The results indicate that it is possible to partially replace the crude protein of the feed up to 6% with the protein of the crambe meal.

scholarly journals PENGARUH PENGGANTIAN TEPUNG IKAN DENGAN SUSU AFKIR DALAM RANSUM TERHADAP PERFORMA PRODUKSI DAN KECERNAAN NUTRIEN AYAM BURAS JANTAN

2017 ◽  
Vol 20 (3) ◽  
pp. 123
Author(s):  
PERTIWI M. E. D ◽  
I M. MASTIKA ◽  
I M. NURIYASA** NURIYASA
Keyword(s):  
Crude Protein ◽  
Fish Meal ◽  
Nutrient Digestibility ◽  
Randomized Design ◽  
Ad Libitum ◽  
Completely Randomized Design

The purpose of this study is to determine the effect of fish meal substitution with expired milk in diets on theproductivity of cockerels at the age of 2-10 weeks. This study was carried out in Puger Village, Jember Regency,East Java. A Completely Randomized Design (CRD) was used with five treatments and five replicates. Totally, therewere 25 experimental units and each unit consists of four cockerels fed without fish meal (R0); 25% diets of fishmeal substitution with expired milk (R1); 50% diets of fish meal substitution with expired milk (R2); 75% diets offish meal substitution with expired milk (R3) and 100% diets of fish meal substitution with expired milk (R4). Dietsand water were given ad libitum. The variables observed were performance and nutrient digestibility. It showedthat cockerels fed 75% diets of fish meal substitution with expired milk (R3) produced higher final body weightand nutrient digestibility (P<0.05) compared to treatment R0, R1, R2 and R4. Treatment R3 produced 75.08%digestibility coefficient of dry ingredient and 72,21% digestibility coefficient of crude protein. It can be concludedthat 75% fish meal substitution with expired milk produced better performance and nutrient digestibility comparedto other treatment.

scholarly journals Supplementation of copaiba or sucupira oils in broiler diets

2018 ◽  
Vol 19 (1) ◽  
pp. 83-92
Author(s):  
Raiana Almeida Noleto ◽  
Nadja Susana Mogyca Leandro ◽  
Heloisa Helena de Carvalho Mello ◽  
Edemilson Cardoso da Conceição ◽  
Itallo Conrado Sousa de Araújo ◽  
...  
Keyword(s):  
Analysis Of Variance ◽  
Intestinal Epithelium ◽  
Control Diet ◽  
Dietary Supplementation ◽  
Broiler Performance ◽  
Tukey Test ◽  
Randomized Design ◽  
Copaiba Oil ◽  
Completely Randomized Design ◽  
A Performance

SUMMARY The aim of this study was to evaluate the effect of supplemental copaiba or sucupira oils on broiler performance and intestinal health. A total of 600 one-day old Cobb 500 male broilers were distributed in a completely randomized design with four treatments and six replicates with 25 broilers each. To increase the health challenge, the broilers were reared on reused litter. The treatments consisted of: control diet; diet with a performance enhancing antibiotic (avilamycin); diet with 2,000 mg/kg copaiba oil and a diet with 500 mg/kg sucupira oil. Data were submitted to analysis of variance and Tukey test (5%). The addition of sucupira oil at 500 mg/kg decreased broiler performance at 21, 33, and 40 days of age, whereas the addition of copaiba oil resulted in similar performance relative to the antibiotic. Dietary supplementation of copaiba or sucupira oils did not change the intestinal epithelium of broilers. The addition of sucupira oil negatively affected broiler performance. Copaiba oil can be used in broiler diets as a performance enhancer.

scholarly journals EFEKTIVITAS BETAIN PADA PAKAN AYAM BROILER RENDAH METIONIN BERDASARKAN PARAMETER BERAT BADAN DAN KARKAS

2017 ◽  
Vol 27 (1) ◽  
pp. 1
Author(s):  
Adi Ratriyanto ◽  
Rysca Indreswari ◽  
Sudiyono Sudiyono
Keyword(s):  
Broiler Chickens ◽  
Control Diet ◽  
Average Daily Gain ◽  
Carcass Characteristics ◽  
Basal Diet ◽  
Methyl Groups ◽  
Broiler Performance ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Daily Gain

<p>This experiment was conducted to investigate the efficacy of methyl groups donor of betaine to spare methionine based on performance and carcass in broiler chickens. In total, 100 day old broiler chickenss were used in this experiment. They were allocated to 4 dieaty treatmants in 5 replicates with 5 broilers each. The basal diet was deficient in methionine. The control diet was obtained from basal diet supplemented with methionine to meet the requirements 5 g/kg diet for starter period and 3.8 g/kg diet for finisher period. The rest 3 treatments were basal diet deficient in methionine supplemented with 1, 2 and 3 g betaine per kg diet. The variables that were observed included average daily gain and carcass characteristics. The data were than analyzed by analysis of variance of Completely Randomized Design and continued with Dunnet test. The result indicated that supplementation of 1 and 2 g betaine per kg diet deficient in methionine resulted the broiler performance which was not different with supplementation of methionine. Accordingly, carcass characteristics for broilers fed diet supplemented with methionine were not different with that supplemented with betaine, which indicated that betaine may reduce the methionine level in the broiler diet. It can be concluded that betaine spares metionine in broiler diets.</p>

scholarly journals EFFECTS OF LYSINE SUPPLEMENTED ON GROWTH AND NUTRIENT DIGESTIBILITY OF NOI CHICKENS FROM 1 TO 56 DAYS OLD

2020 ◽  
Vol 1 (37) ◽  
pp. 89-97
Author(s):  
Hung Thai Lam ◽  
Ngu Trong Nguyen
Keyword(s):  
Crude Protein ◽  
Nutrient Digestibility ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Feed Conversion ◽  
Dietary Crude Protein ◽  
Randomized Design ◽  
Entire Duration ◽  
Ad Libitum ◽  
Completely Randomized Design

A total of 256 one-day-old chicks were allocated into a completely randomized design with 4 treatments and 4replicates to evaluate growth, feed conversion ratio (FCR), and nutrient digestibility (ND) of Noi chickens. The treatments consisted of control diets (Lys0) containing 1.0 and 0.9% lysine for birds 1 to 28 and 29 to 56 daysof age respectively; 3 other treatments (Lys1; Lys2; Lys3) had 0.1, 0.2, 0.3% of lysine added to diets respectively. Dietary crude protein (CP) was calculated to 19% and 17% for 1 to 28 and 29 to 56 days old, but dietary ME was2.900 kcal/kg of feed for the entire duration of the study. On the last seven days of each period, one male and one female per replicate were selected to be assessed for apparent ND by ferric oxide (Fe2O3) marker. Birds were fed, provided fresh water ad libitum, and vaccinated to prevent some common diseases. Results showed that lysine supplemented 0.2 to 0.3% and 0.3% in diets for the birds between 1 to 28 and 29 to 56 days old significantly improved the growth and FCR of the chickens (P<0.05). Also, an additional 0.1-0.3% of lysine in the Noi chickens’ diets dramatically increased CP and average amino acid apparent digestibility (P<0.05),but did not effect the calcium and phosphorus digestibility of the Noi broilers.

scholarly journals Performan Ayam Broiler yang diberi Ransum Mengandung Potassium Diformate Sebagai Pengganti Flavomycin

2008 ◽  
Vol 8 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Nahrowi Ramli ◽  
Dwi Margi Suci ◽  
S. Sunarto ◽  
C. Nugraheni ◽  
A. Yulifah ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Efficiency ◽  
Body Weight Gain ◽  
Control Diet ◽  
Orthogonal Test ◽  
Feed Consumption ◽  
Broiler Performance ◽  
Randomized Design ◽  
Completely Randomized Design ◽  
Test Treatments

Performance of broilers fed diets containing potassium diformate to replace flavomycinABSTRACT. The aim of this research was to study the effect of potassium-diformate (PD) on broiler performance. One hundred and twenty old chicks of Cobb strain were divided into fifteen groups and feed one of five treatments, namely: P1 (control diet), P2 (P1 + 0,5%PD), P3(P1 + 1%PD), P4 (P1 + 1,5%PD) and P5 (P1 + antibiotic). Data from Completely Randomized Design were analyzed by ANOVA and any significant among them were used contrast orthogonal test. Treatments did not impact on feed consumption, mortality and percentage of viscera, but the groups treated with 1 and 1.5% PD and flavomicyne antibiotic had significant improvement on body weight gain (P0.169) and feed efficiency (P0.05). It is concluded that addition of 1-1.5% potassium-diformate in the broiler’s diet could improve feed efficiency and replace flavomycine antibiotic as growth promotors without influencing the performance of viscera. 

scholarly journals Effects of feed restriction on yield, retail cuts and tissue composition of carcass of Saanen kids

2007 ◽  
Vol 36 (3) ◽  
pp. 666-673 ◽  
Author(s):  
Enrique Alejandro Yáñez ◽  
Kleber Tomás de Resende ◽  
Ângela Cristina Dias Ferreira ◽  
Ariosvaldo Nunes de Medeiros ◽  
Américo Garcia da Silva Sobrinho ◽  
...  
Keyword(s):  
Body Weight ◽  
Subcutaneous Fat ◽  
Feed Restriction ◽  
Free Access ◽  
Tissue Composition ◽  
Initial Body Weight ◽  
Randomized Design ◽  
Ad Libitum ◽  
Completely Randomized Design ◽  
Retail Cuts

Twenty-seven male Saanen kids were used in a completely randomized design to investigate the effect of feed restriction on retail and biological carcass yields, proportion of carcass retail cuts, carcass compactness, leg tissue composition, and ribeye area (REA). Animals were assigned to one of the following treatments: 0 (free access to feed: ad libitum), 30 or 60% of feed restriction. Initial body weight (BW) averaged 5 kg and animals were slaughtered when they reached 20 kg BW. Data were submitted to regression analysis as function of feed restriction. Feed restriction reduced carcass weight, retail cuts weight, and chump proportion and increased neck proportion. Bone proportion also increased while muscle tissue and fat proportion (including subcutaneous fat) decreased with feed restriction. Although REA and carcass compactness were both affected by feed restriction, they can be used to predict the proportion of carcass muscle. Carcass traits of Saanen kids were not negatively affected by 30% of feed restriction.

scholarly journals PENGGUNAAN PRODUK FERMENTASI DAN KUNYIT DALAM PAKAN TERHADAP PERFORMAN AYAM PEDAGING DAN INCOME OVER FEED AND CHICK COST

ZOOTEC ◽  
2015 ◽  
Vol 35 (2) ◽  
pp. 379
Author(s):  
Nurhayati ◽  
Chandra Utami Wirawati ◽  
Dwi Desmiyeni Putri
Keyword(s):  
Weight Gain ◽  
Key Words ◽  
Water Consumption ◽  
Control Diet ◽  
Feed Conversion ◽  
Broiler Performance ◽  
The Third ◽  
Fermentation Product ◽  
Randomized Design ◽  
Completely Randomized Design

THE  UTILIZATION OF FERMENTATION PRODUCT AND CURCUMA IN RATION ON BROILER PERFORMANCE, AND INCOME OVER FEED AND CHICK COST. The aim of this study was to investigate the utilization level of fermentation product combined with curcuma in ration on broiler performace, and income over feed and chick cost (IOFCC). Completely Randomized Design with 4x2x2 factorial arrangement was used in this research. The first factor were levels of fermentation product in ration (0, 10, 20, dan 30%), the second factor were curcuma addition in ration (0% and 2,5%), and the third factor were vaccine applications (without and with vaccine application). The results showed that there were no interaction among the utilization levels of fermentation product, the addition of curcuma, and vaccine applications on broiler performance. The results also indicated that 10% utilization of fermentation product in broiler ration could increase broiler performance (weight gain and feed conversion). 10% utilization of Fermentation product and addition of 2.5% curcuma in ration could produce higher IOFCC compared to control diet. Utilization of fermentation product, curcuma addition in ration, and vaccine application did not affect ration and water consumption. Key words: fermentation product, curcuma, broiler performance, IOFCC.

scholarly journals Nitrogen, calcium and phosphorus balance of broilers fed diets with phytase and crystalline amino acids

2011 ◽  
Vol 35 (3) ◽  
pp. 591-597 ◽  
Author(s):  
Elisangela Minati Gomide ◽  
Paulo Borges Rodrigues ◽  
Márcio Gilberto Zangeronimo ◽  
Antônio Gilberto Bertechini ◽  
Luziane Moreira dos Santos ◽  
...  
Keyword(s):  
Amino Acids ◽  
Crude Protein ◽  
Control Diet ◽  
Experimental Unit ◽  
Available Phosphorus ◽  
Phosphorus Balance ◽  
Randomized Design ◽  
Reduced Crude Protein ◽  
Completely Randomized Design ◽  
Crystalline Amino Acids

The objective of this study was to evaluate the effect of reduced-crude protein (CP) and available phosphorus (aP) diets, added with phytase and amino acids for broilers in the growing (14 to 21 days old) and retirement (35 to 42 days) phases on nitrogen, potassium and phosphorus balance. Ninety Cobb broilers were distributed in a completely randomized design with three treatments and six replications with five and three birds per experimental unit in the growing and retirement phases, respectively. Diets were elaborated to contain reduced CP and aP levels (19 and 17% CP in the growing phase, with 0.34% aP; and 18 and 16% CP in the retirement phase, with 0.30% aP), supplemented with crystalline amino acids and 500 FTU of phytase/kg diet. These were compared to a control diet (21% CP and 0.46% aP for growing phase and 19% CP and 0.40% aP for retirement phase). The reduction of CP in four percentual units reduced the N excretion and increased the retention of this element, showing that the phytase had no influence on N balance when used the crystalline amino acids in the diets. The phytase reduced the P excretion and increased the retention ones. The potassium excretion decreased in reduced-CP diets, but this excessive reduction decreased the retention of this element, except in the retirement phase. It was concluded that the reduced-CP and aP diets, supplemented with phytase and amino acids, are efficient in reducing the pollutant power of the broilers excrements in the growing and retirement phases of production.

scholarly journals INFLUENCE OF A BLEND OF DIETARY ESSENTIAL AMINO ACIDS ON GROWTH, ENZYMATIC ACTIVITY, AND INTESTINAL HISTOLOGY OF BLUE DISCUS

2021 ◽  
Vol 47 ◽  
pp. e599
Author(s):  
Rudã Fernandes Brandão SANTOS SANTOS ◽  
Mayara Schueroff SIQUEIRA ◽  
Ryuller Gama Abreu REIS ◽  
Weliton Vilhalba SILVA ◽  
Henrique Momo ZIEMNICZAK ◽  
...  
Keyword(s):  
Amino Acids ◽  
Crude Protein ◽  
Control Diet ◽  
Essential Amino Acids ◽  
Amino Acid Supplementation ◽  
Intestinal Histology ◽  
Feeding Management ◽  
Randomized Design ◽  
Liver Changes ◽  
High Level

Symphysodon aequifasciatus is a fish with a disk-shaped body and bright colors, important characteristics of ornamental fish. We evaluated amino acid supplementation strategies to reduce crude protein in the diet for evaluation of performance, the content of digestive enzymes, liver metabolism, and intestinal histopathology. A total of 180 fish were randomly distributed in 12 separate 50 L glass aquariums, consisting of a completely randomized design with four treatments (DC - Control diet with 34.4% crude protein; DL - Control diet plus 1% of lysine; DEAA - Control diet plus 1% free essential amino acids (threonine, phenylalanine, leucine, valine, arginine, and tryptophan); and DHP - Diet with a high level of crude protein 48.4%), three repetitions, lasting 60 days. The use of DL and DEAA diets resulted in higher intestinal villus height and higher zootechnical performance. The use of DL diet increased alkaline phosphatase and digestive amylase activity. The use of DHP diets promotes severe liver changes due to increased activity of Alanine aminotraserase. Therefore, it was possible to observe that the use of amino acids can supply the nutritional need of blue discus. Supplementation of diets with AAs allows the reduction of dietary protein, which is a strategy for feeding management.

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