scholarly journals Avaliação de bovinos nelore e mestiços curraleiros em sistema de semiconfinamento

2021 ◽  
Vol 4 (6) ◽  
pp. 22-29
Author(s):  
João Fernando Soares Andrade ◽  
◽  
Fernanda Giácomo Ragazzi ◽  
Keyword(s):  
Economic Evaluation ◽  
Weight Gain ◽  
Breeding System ◽  
The State ◽  
Productive Efficiency ◽  
Carcass Weight ◽  
Beef Production ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Before And After

The objective of this work was to evaluate the productive efficiency in feed conversion and weight gain of two groups of animals used in the region of the State of Minas Gerais. Thus, it was intended to demonstrate through descriptive analyzes, the best yield of beef production in relation to its maintenance in the farm in a semiconfinement breeding system, carried out. Two groups of animals were separated from different blood grades, the Nellore breed and the crossbred mestizos. For the analyzes, the comparisons before and after the semiconfinement were carried out, as well as annotations of warm carcass weight, weight gain on days of semiconfinement and economic evaluation. Within the criteria to characterize the best investment, nellore presented better carcass yield, less time to gain weight and higher economic income.

scholarly journals Light emitting diode (LED) use in artificial lighting for broiler chicken production

2014 ◽  
Vol 34 (3) ◽  
pp. 422-427 ◽  
Author(s):  
Mayara R. de Santana ◽  
Rodrigo G. Garcia ◽  
Irenilza de A. Naas ◽  
Ibiara C. de L. A. Paz ◽  
Fabiana R. Caldara ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Broiler Chickens ◽  
Energy Savings ◽  
Light Emitting Diode ◽  
Carcass Weight ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Light Emitting ◽  
Artificial Lighting

Light emitting diode (LED) has been used in commercial poultry industry by presenting superior energy savings and providing feasibility on production process. The objective of this research was to evaluate performance and carcass yield of broiler chickens exposed to different LED colors compared with fluorescent lamps. For that, two experiments (E1 and E2) were performed and 2,646 Cobb® chickens were used. In experiment E1, male birds were exposed to 20 lux artificial lighting with red, yellow, blue, and white LED bulbs; and fluorescent bulb. In experiment E2, male and female birds were exposed to 15 lux artificial lighting with red and blue LED bulbs; and fluorescent bulb. Cumulative weight gain (kg), feed intake (kg), feed conversion, hot carcass weight (kg), carcass yield (%), and breast and thigh + drumstick yield (%) were used as response variables. Results showed no difference (p > 0.05) among treatments for performance, carcass yield, and cut yield in experiment E1. In experiment E2 there was only difference between genders (p < 0.05) and males showed higher total weight gain, feed intake, hot carcass weight and thigh + drumstick yield. Different LED color use had same effect as fluorescent lights on broiler performance and carcass yield.

EFFECTS OF SUPPLEMENTAL NEEM (Azadirachta indica) AND GARLIC (Allium sativum) ON GROWTH AND CARCASS YIELD OF FINISHING BROILER

2017 ◽  
Vol 16 (2) ◽  
pp. 29-42
Author(s):  
R. A. SOBAYO ◽  
S. B. MUHAMMAD ◽  
O. O. OSO ◽  
O. M. SOGUNLE ◽  
Y. A. ADEJOLA ◽  
...  
Keyword(s):  
Weight Gain ◽  
Broiler Chickens ◽  
Live Weight ◽  
Carcass Weight ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Randomized Design ◽  
Four Levels ◽  
Feeding Diets

This study was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM + GM) on growth performance and carcass yield of finishing broiler. A total of 180 day-old Cobb broiler chickens were divided into twelve groups of fifteen chicks with three replicate of five chicks each. The diet contained NLM, GM and NLM + GM at four levels of inclusion (0mg/kg, 500mg/kg, 1000mg/kg and 1500mg/kg). The experiment was arranged in a 3 × 4 factorial layout in a completely randomized design. Additives and levels of inclusion had no significant (P>0.05) influence on performance parameters except feed intake which was influenced (p<0.05) by NLM + GM and 1000mg/kg levels of inclusion. Final live weight (2516.67g/bird), weight gain (1742.00g/bird), daily weight gain (62.2g/bird/day) and feed conversion ratio (2.32) were improved (p<0.05) at 1500mg/kg levels of inclusion of NLM + GM. Thigh (11.68%), wings (8.44), neck (4.23%) and gizzard (2.13%) of birds fed GM were improved (P<0.05) than those of NLM. Carcass weight was influenced (p<0.05) by additives at various inclusion levels with wings (9.01%), head (3.39%), neck (4.52%), shanks (4.49%) and gizzard (2.42%) highest (p<0.05) in birds fed GM at 1500mg/kg levels of inclusion than those of 0mg/kg levels of inclusion. It was concluded that the use of NLM + GM as additives yielded commendable result on performance and carcass weight of finishing broiler birds   This study was conducted to investigate the effects of feeding diets containing Neem Leaf Meal (NLM), Garlic Meal (GM) and their combinations (NLM + GM) on growth performance and carcass yield of finishing broiler. A total of 180 day-old Cobb broiler chickens were divided into twelve groups of fifteen chicks with three replicate of five chicks each. The diet contained NLM, GM and NLM + GM at four levels of inclusion (0mg/kg, 500mg/kg, 1000mg/kg and 1500mg/kg). The experiment was arranged in a 3 × 4 factorial layout in a completely randomized design. Additives and levels of inclusion had no significant (P>0.05) influence on performance parameters except feed intake which was influenced (p<0.05) by NLM + GM and 1000mg/kg levels of inclusion. Final live weight (2516.67g/bird), weight gain (1742.00g/bird), daily weight gain (62.2g/bird/day) and feed conversion ratio (2.32) were improved (p<0.05) at 1500mg/kg levels of inclusion of NLM + GM. Thigh (11.68%), wings (8.44), neck (4.23%) and gizzard (2.13%) of birds fed GM were improved (P<0.05) than those of NLM. Carcass weight was influenced (p<0.05) by additives at various inclusion levels with wings (9.01%), head (3.39%), neck (4.52%), shanks (4.49%) and gizzard (2.42%) highest (p<0.05) in birds fed GM at 1500mg/kg levels of inclusion than those of 0mg/kg levels of inclusion. It was concluded that the useof NLM + GM as additives yielded commendable result on performance and carcass weight of finishing broiler birds Keywords: Neem, garlic, broilers, performance, carcass characteristics. 

scholarly journals Evaluation of the use of probiotics in diets with or without growth promoters for broiler chicks

2010 ◽  
Vol 39 (12) ◽  
pp. 2687-2690 ◽  
Author(s):  
Régis Fernando Pastorelo Meurer ◽  
Paula Carvalho Leal ◽  
Chayane da Rocha ◽  
Ivânio José Martins Bueno ◽  
Alex Maiorka ◽  
...  
Keyword(s):  
Bacillus Subtilis ◽  
Weight Gain ◽  
Feed Intake ◽  
Control Diet ◽  
Experimental Period ◽  
Efficiency Index ◽  
Productive Efficiency ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Growth Promoters

This work was carried out to evaluate the use of Bacillus subtilis probiotic C-3102 (10(10)cfu/g) in diets with or without growth promoters on the performance of broilers in the period from 1 to 42 days of age. It was used 1,200 Cobb line broilers, distributed in a complete randomized block with five diets: negative controller (without promoters); Bacillus subtilis (30 g/t ration); Bacillus subtilis (50 g/t ration); Bacillus subtilis (30 g/t ration) + colistin (10 ppm); avilamycin (10 ppm) + colistin (10 ppm). Each diet was evaluated in 10 repetitions with 24 birds. From 21 to 42 days of age, feed intake, weight gain and feed conversion were evaluated, and at 42 days of age, productive efficiency index was evaluated. At the end of the experimental period, it was observed an increase in the consumption of diet with the lowest dose of Bacillus subtilis (30 g) in relation to that one with Bacillus subtillis (30 g) + colistin (10 ppm). The values of weight gain obtained with the diet with the lowest dose of Bacillus subtillis (30 g) and with avilamycin (10 ppm) + colistine (10 ppm) were higher than those of the birds fed control diet (without promoters). For feed conversion, the best results were obtained by supplying diets containing 50 g of Bacillus subtillis, diet with 30 g of Bacillus subtillis + 10 ppm of colistin; and diet with 10 ppm of avilamycin + 10 ppm colistin. For the analysis of productive efficiency index, the best results were obtained with diets containing additives (probiotics and/or antibiotics) in comparison to the control diet. Bacillus subtillis C-3102 probiotic, at concentration 10(10) cfu/g, is an efficient substitute of antibiotics.

scholarly journals Development of a water recirculating system for bullfrog production: technological innovation for small farmers

2016 ◽  
Vol 40 (1) ◽  
pp. 67-75 ◽  
Author(s):  
Sílvia Conceição Reis Pereira Mello ◽  
Roberto Rodrigues de Oliveira ◽  
Marcelo Maia Pereira ◽  
Eliane Rodrigues ◽  
Willian Nascimento Silva ◽  
...  
Keyword(s):  
Water Quality ◽  
Weight Gain ◽  
Technological Progress ◽  
Low Cost ◽  
Research Unit ◽  
High Survival ◽  
Feed Conversion ◽  
Before And After ◽  
Total Ammonia ◽  
Development Phases

ABSTRACT Despite the technological progress in frog farming, issues related to the environment, biosafety, and the use of technologies that minimise environmental impacts are frequently neglected by farmers. With the goal of developing a low-cost technology for reuse and preservation of water quality, an anaerobic filtering system combined with an aerobic filtering system was implemented in the grow-out sector in the Frog Culture Research Unit at Fundação Instituto de Pesca do Estado do Rio de Janeiro (FIPERJ). The filtering system received the effluent from six pens of frogs that were populated with 362 frogs in different development phases. The efficiency of the filtering system was evaluated by an analysis of the water before and after passing through the filters. In addition to the standards of water quality, the animals' performance was also observed through monitoring rates of survival, weight gain and feed conversion ratio. The results showed the effectiveness of the filtering system by removing organic matter, on average 87%. The values of total ammonia and non-ionisable reached 1.04 and 0.004 mg/L, respectively. Also, frogs subjected to the system presented satisfactory rates of weight gain and a high survival rate (97%).

scholarly journals PSVI-7 Increased consumption of Methionine as DL-Methionine or OH-Methionine improved pigs growing performance and carcass traits under hot conditions

2020 ◽  
Vol 98 (Supplement_3) ◽  
pp. 201-201
Author(s):  
Caio A da Silva ◽  
Marco A Callegari ◽  
José Henrique Barbi ◽  
Naiara Fagundes ◽  
Cleandro P Dias ◽  
...  
Keyword(s):  
Weight Gain ◽  
Growth Performance ◽  
Carcass Traits ◽  
Live Weight ◽  
Daily Weight Gain ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Lean Meat ◽  
Adequate Dose ◽  
Significant Difference

Abstract This study aimed to determine the effects of increasing Methionine (Met) supply on growth performance and carcass traits of growing-finishing pigs under summer conditions in Brazil. A total of 200 barrows and females, 63 d-old (20.43±2.0 kg), were allocated in a 2 x 2 factorial design (two Met sources [DL-Met and OH-Met] and two Met doses [100 and 120% Brazilian Nutritional recommendation) with 10 replicates of 5 animals each. Corn-DDGS-wheat-soya based diets were formulated. Treatments were offered during four phases: growing I (63-93 d old), growing II (94-114 d old), finishing I (115-142 d old) and finishing II (143-160 d old). The recommended digestible Met levels were: 0.32, 0.30, 0.29 and 0.24% respectively for the four phases. Average temperature was 27.12 ± 4.51ºC and relative humidity was 61.72 ± 5.65%. Growth performance was measured for each rearing phase. Carcass yield, back fat height, loin depth, and lean meat yield were measured at the end of the experiment. Data were submitted to a 2-way ANOVA and Tukey test. There was no significant interaction between the Met source and the dose for all performance and carcass traits. Feed intake and feed conversion ratio were similar between treatments (P &gt;0.05). The individual daily weight gain and live weight were better for the highest doses of methionine (P&lt; 0.05) in all phases and on the whole period, except for the finishing II where the weight gain was similar for all treatments. Likewise, carcass yield, lean meat was increased with the highest dose of methionine in comparison to the adequate dose. No significant difference was found between DL-Met and OH-Met on growth performance parameters. OH-Met resulted in a higher loin depth (58.37 mm) in comparison to DL-Met (55.21 mm). Overall, these results demonstrated the interest of increasing Met supply under hot conditions to improving performance and carcass quality traits.

scholarly journals Vitamin C dietary supplementation influence tadpoles of bullfrog Lithobates catesbeianus reared in low water temperature

2021 ◽  
Vol 58 ◽  
pp. e168438
Author(s):  
Rodrigo Diana Navarro ◽  
Tamyres Pereira Araújo Martins ◽  
Marcelo Maia Pereira
Keyword(s):  
Weight Gain ◽  
Vitamin C ◽  
Water Temperature ◽  
Visceral Fat ◽  
Experimental Period ◽  
Hepatosomatic Index ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Vitamin C Supplementation ◽  
Closed Water

Vitamin C supplementation is important for the growth and development of bullfrog tadpoles under optimum water temperature conditions. Therefore, an experiment was carried out to evaluate the effects of vitamin C supplementation on the diet of bullfrog tadpoles at a low temperature. A total of 480 tadpoles with a mean weight of 0.078 g were distributed in 12 aquariums each containing 40 L of water in a closed water recirculation system. The experimental design was entirely randomized with four treatments (0, 150, 300, and 600 mg kg-1 of L-ascorbic acid monophosphate) and three replicates. The productive performance was measured by the weight gain, feed conversion, diet consumption, protein efficiency, carcass yield, hepatosomatic index, viscerosomatic index, visceral fat index, dry matter, and ethereal carcass extract. The water temperature during the experimental period was 21.74 ± 0.43 °C. Vitamin C supplementation did not influence carcass yield and viscerosomatic index. However, there was a quadratic effect of vitamin C supplementation on the weight gain, apparent feed conversion, protein efficiency, visceral fat index, hepatosomatic index, and ethereal carcass extract. Based on these results, bullfrog tadpoles should be supplemented with 600 mg vitamin C kg-1 of the diet when subjected to water temperatures of around 22 °C.

scholarly journals PÓLEN APÍCOLA COMO ADITIVO EM DIETAS PARA FRANGOS DE CORTE

Nativa ◽  
2018 ◽  
Vol 6 (5) ◽  
pp. 551 ◽  
Author(s):  
Rômulo Batista Rodrigues ◽  
Luiz Eduardo Avelar Pucci ◽  
Juliano Uczay ◽  
Mabel Molinari ◽  
Rafael Lazzari ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Efficiency Index ◽  
Productive Efficiency ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Villus Height ◽  
Nutrition Supplementation ◽  
Randomized Design ◽  
Intestinal Morphometry

O pólen apícola é um produto natural constituído por vários nutrientes, rico em aminoácidos livres e com baixo teor de gordura, além de propriedades profiláticas e terapêuticas, desta maneira é uma excelente opção na nutrição animal e pode oferecer benefícios ao desempenho e saúde dos animais de produção. Este trabalho foi realizado para avaliar o uso de pólen apícola em dietas para frangos de corte. Foram utilizados 105 pintos machos com um dia de idade, linhagem Cobb 500® (peso inicial = 38,95 ± 2,37g), em delineamento inteiramente casualizado e alimentados durante 42 dias. Foram utilizados três tratamentos, com diferentes níveis de inclusão de pólen apícola (0, 15.000, 30.000 mg/kg) e cinco repetições. Foram avaliadas as seguintes variáveis: desempenho zootécnico (consumo de ração, ganho de peso, conversão alimentar, viabilidade e índice de eficiência produtiva), características de carcaças (rendimento de carcaça, peito, coxa e sobrecoxa, asas, fígado, moela e coração) e histomorfometria intestinal (profundidade de cripta, largura da vilosidade e altura da vilosidade). Observou-se diferença entre os tratamentos sobre os parâmetros de ganho de peso, consumo de ração, conversão alimentar, índice de eficiência produtiva, rendimento de coxa e sobre coxa, de fígado, de coração e moela dos frangos de corte. Na análise de histomorfometria intestinal, a altura da vilosidade foi diferente entre os tratamentos. Recomenda-se a utilização de 30.000 mg/kg de pólen apícola na dieta por melhorar o desempenho dos frangos de corte.Palavras-chave: aves, desempenho zootécnico, nutrição, suplementação. POLLEN AS ADDITIVES IN DIETS FOR BROILERS ABSTRACT:The bee pollen is a natural product consisting of several nutrients, rich in free amino acids and low in fat, and prophylactic and therapeutic properties, so it is an excellent choice in animal nutrition and can offer benefits to the performance and health of animals of production. This study was conducted to evaluate the use of pollen in diets for broilers. We used 105 broiler chicks of one day old Cobb 500 (initial weight = 38.95 ± 2.37 g) in a completely randomized design and fed for 42 days. Three treatments were used, with different inclusion levels of pollen (0, 15000 and 30000 mg/kg) and five replications. We evaluated the following variables: performance (feed intake, weight gain, feed conversion, feasibility and Productive Efficiency Ratio), carcass traits (carcass yield, breast, leg and thigh, wings, liver, gizzard and heart) and rates of intestinal morphometry (crypt depth, villus width and villus height). It was observed a difference between treatments on the parameters of weight gain, feed intake, feed conversion, productive efficiency index, yield and thigh on thigh, liver, heart and gizzard of broilers. In morphometric analysis intestinal villus height was between treatments. It is recommended to use 30,000 mg / kg of pollen in the diet to improve the performance of broilers.Keywords: chicken, growth performance, nutrition, supplementation.

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.

scholarly journals Different calcium sources on the productive performance and bone quality of meat quail

2022 ◽  
Vol 52 (6) ◽  
Author(s):  
Daniela da Silva Mendonça ◽  
Sandra Roseli Valerio Lana ◽  
Geraldo Roberto Quintão Lana ◽  
Ana Patrícia Alves Leão ◽  
Romilton Ferreira de Barros Júnior ◽  
...  
Keyword(s):  
Weight Gain ◽  
Feed Intake ◽  
Oyster Shell ◽  
Average Weight ◽  
Dry Matter Content ◽  
Productive Performance ◽  
Feed Conversion ◽  
Carcass Yield ◽  
Bone Parameters ◽  
Calcium Sources

ABSTRACT: This study was developed to examine the effect of using charru mussel-, maçunim- and oyster-shell meals as calcium sources on the productive performance, carcass yield and bone parameters of meat quail. A total of 250 one-day-old non-sexed European quail were used. The birds were distributed into five treatments (calcium sources: calcitic lime, calcium carbonate, charru mussel shell meal, maçunim shell meal or oyster shell meal) in a completely randomized design with five replicates and ten birds per experimental unit. Feed intake, weight gain and feed conversion were evaluated from one to 35 days. At 35 days, two birds with the average weight of the plot were slaughtered per plot and used for analysis of carcass yield and bone parameters. There were no significant differences (P > 0.05) in feed intake, weight gain, feed conversion, carcass yield or tibia dry matter content, ash content and strength. The charru mussel-, maçunim- and oyster-shell meals can be used as calcium sources in the diet of European quail without affecting their productive performance, carcass yield or bone mineralization.

scholarly journals Effect of feed on the performance of upgraded Holstein Friesian bulls during fattening at BAPARD cattle farm in Bangladesh

2021 ◽  
Vol 6 (4) ◽  
pp. 761-767
Author(s):  
MMH Mustafa ◽  
MR Islam ◽  
MM Rahman
Keyword(s):  
Weight Gain ◽  
Beef Cattle ◽  
Live Weight ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Beef Production ◽  
Feed Conversion ◽  
Cattle Farm ◽  
Live Weight Gain ◽  
Holstein Friesian

The study was conducted to find out the effect of beef cattle diet on the performance of upgraded Holstein Friesian bulls at BAPARD cattle farm in Bangladesh. For this purpose, twelve Local x Holstein-Friesian upgraded bulls (L×F) of average 20 months of age and 213 kg live weight were divided into three equal groups. Three different diets such as (i) a mixed concentrate ration (T1), (ii) mixed concentrate ration and UMS at a ratio of 1:1 on DM basis (T2) and (iii) green Grass based ration without concentrate and UMS. The results found that the average daily live weight gains of three groups was 350g, 330g and 340g respectively, which were not differ significantly (P<0.05). Daily DM intake was significantly higher in T3 but the digestibility found lower than other treatments. In case of feed conversion ratio (FCR), the highest FCR was found in T1 (2.96) but cost of per kg live weight gain was the lowest in T3 (BDT 90) compared to T1 (BDT 140) and T2 (BDT 142). Therefore, considering the FCR and cost of per unit beef production, a beef diet of green grass might be the appropriate diet for the floodplains area for Local x Holstein-Friesian upgraded bulls. Asian J. Med. Biol. Res. December 2020, 6(4): 761-767

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