Consulta: subjectFacets:"Feed restriction"
Registros recuperados: 14
Data/hora: 10/06/2024 11:01:14

Forced-Molting methods and their effects on the performance and egg quality of japanese quails (Coturnix japonica) in the second laying cycle
Provedor de dados: 89
Autores: Faitarone,ABG; Garcia,EA; Pizzolante,CC; Molino,AB; Pelícia,K; Berto,DA.
The experiment was carried out in the experimental poultry house of the Research and Development Unit of Brotas of Agência Paulista de Tecnologia dos Agronegócios do Centro-Oeste, SP, Brazil. The objective of the study was to evaluate the performance of Japanese quails submitted to forced molting aiming at optimizing the use of the same quail flock by promoting a second laying cycle. A total number of 400 67-day-old Japanese quails in lay, previously submitted to 14 days of forced molting, was distributed in a completely randomized experimental design into five treatments (T1= not submitted to forced molting, T2= 03 days of fasting + fed ad libitum, T3= 01 days of fasting + 13 days of feed restriction, T4= 02 days of fasting + 12 days of feed restriction,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Egg production; Feeding management; Feed restriction; Poultry.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2008000100008

Effects of the Addition of Pure Glycerin Supplementation in the Drinking Water on the Performance of Broilers Submitted to Heat Stress and Feed Restriction
Provedor de dados: 89
Autores: Moraes,PO; Ceron,MS; Borille,R; Gianluppi,RDF; Lovato,GD; Cardinal,KM; Ribeiro,AML.
ABSTRACT The experiment was conducted to study the effect of pure glycerin supplementation (GLYC) in the drinking water of broilers subjected to heat stress and feed restriction. Water with 0, 1, or 2% glycerin was provided ad libitum to broilers in six hours of feed restriction. The birds were housed in two environments: thermoneutral (TN) - 25 ° C, and cyclic heat stress (HS) - 12h with 250C, 6h with 320C, 3h of 250 to 320C and 3h of 320 to 250C. The experimental design was randomized in a factorial arrangement of 2 x 3 + 2, with three GLYC levels, two environments and one control group with ad libitum feeding each environment. When submitted to HS, broiler receiving 2% glycerin presented higher weight gain (WG), water consumption (WC), feed intake (FI)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environmental temperature; Feed restriction; Glycerol; Performance; Water consumption.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2016000300413

The effects of alternative forced-molting methods on the performance and egg quality of commercial layers
Provedor de dados: 89
Autores: Molino,AB; Garcia,EA; Berto,DA; Pelícia,K; Silva,AP; Vercese,F.
This study aimed at studying alternative methods to induce molting and to compare them with the conventional forced-molting method (fasting). In the experiment, 420 70-week-old layers were used. The total experimental period was 140 days. Molting was induced during the first 28 days, when birds were submitted to the experimental treatments, and bird performance and egg quality parameters were determined during 112 subsequent days. A completely randomized experimental design was applied in a 5x2 factorial arrangement of five feed restriction regimes (0, 15, 30, 45, or 60g feed/bird/day) and with or without the addition of coarse-particle limestone to the feed, with seven replicates of six birds each. Egg quality was evaluated at the end of each 28-day...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Eggshell thickness; Feed restriction; Limestone; Welfare.
Ano: 2009
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2009000200006

Effects of the reduction of dietary heat increment on the performance, carcass yield, and diet digestibility of broilers submitted to heat stress
Provedor de dados: 89
Autores: Laganá,C; Ribeiro,AML; Kessler,AM; Kratz,LR; Pinheiro,CC.
This experiment aimed at verifying the effect of different diets and thermal environments on the performance, carcass yield, and diet digestibility of 21 to 42-day-old broilers. A total number of 288 21-day-old male Ross broilers were distributed in a 2 x 2 + 2 factorial arrangement, with six replicates, including the following factors: two environments (TNE - thermoneutral: 21-25ºC and 73% RH; CHS - cyclic heat stress: 25-32ºC and 65%RH), and two diets (control: 2.4% soybean oil and 19.5% protein; summer: 4.0% soybean oil and 18.5% protein). In TNE, two additional treatments were included with feed restriction of birds fed both the control and summer diets (pair-feeding), thereby maintaining the same feed intake level for both types of diet. Diet did not...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Environment temperature; Fat; Poultry nutrition; Protein; Feed restriction.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000100007

Effect of forced-molting methods and rearing temperatures on the performance and organ biometrics of laying hens
Provedor de dados: 89
Autores: Sgavioli,S; Filardi,R da S; Praes,M F F M; Domingues,C H de F; Andrade,P de C; Pileggi,J; Boleli,I C; Junqueira,O M.
An experiment was conducted to evaluate the biometrics of organs (ovary, oviduct, liver, proventriculus and gizzard) of laying hens submitted to different forced-molting methods of molt and maintained at three different temperature. Organs were evaluated after molting and resting period. Six hundred birds were distributed according to a completely randomized experimental design in a 5x3 factorial arrangement (forced-molting methods x environmental temperatures) into 15 treatments with 5 replicates of 8 birds each. The molting methods applied were the dietary inclusion of 90%, 70%, 50% of alfalfa, 2,800 ppm zinc oxide, or total feed restriction. Birds were kept at ±20 ºC, ±27 ºC, or ±35 ºC. Data were submitted to analysis of variance and means were compared...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Heat stress; Ovary; Feed restriction; Welfare.
Ano: 2013
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300011

Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers
Provedor de dados: 89
Autores: HAO,E; Chen,H; Ge,S; Huang,R.
ABSTRACT Photoperiod and nutrition are major factors that affect the reproductive efficiency particularly in female animals. In this study we examined the interaction of photoperiod and food restriction on growth, sexual maturation and receptor mRNA expressions of leptin, melatonin, and estrogen in abdominal fat and the ovary of pullets. There were no interaction effects between photoperiod and feeding level on body weight, abdominal fat weight, ovary weight at both 14 wk and 18 wk. Abdominal fat weight of feed restriction group was significantly lower compared with the control group at the age of 14 wk, 18 wk, and age of the first egg (AFE) (p&lt;0.05). Ovary LEPR (Leptin receptor) gene expression showed an interaction effect of the first egg. Restricted...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed restriction; MELR; Ovary; Photoperiod; Pullet.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2019000300311

Feed restriction on performance and blood parameters of broilers fed diets with different sodium levels
Provedor de dados: 89
Autores: Junqueira,OM; Fonseca,LEC; Araújo,LF; Duarte,KF; Araújo,CS da S; Rodrigues,EAp.
The experiment was conducted to evaluate the effect of feed restriction and different sodium levels in the diet on the performance and hematological values (erythrocyte, hemoglobin, hematocrit, mean cell volume, mean cell hemoglobin, mean cell hemoglobin concentration and white blood cell) of broilers from 22 to 42 days of age. A completely randomized design was used in a 4 x 2 x 2 factorial (levels of sodium: 0.16%, 0.19%, 0.22% and 0.25%; with or without feed restriction; male and female), and two replicates of thirty broilers each. Sodium levels did not affect performance (p&gt;0.05). Feed restriction resulted in increased feed intake and affected weight gain and feed conversion negatively (p&lt;0.05). Better weight gain and feed conversion (p&lt;0.05)...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Blood; Broilers; Feed restriction; Nutrition; Sodium; Sodium bicarbonate.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2003000200003

Comparison of the effects of several feed restriction periods to control ascites on performance, carcass characteristics and hematological indices of broiler chickens
Provedor de dados: 89
Autores: Boostani,A; Ashayerizadeh,A; Mahmoodian,Fard HR; Kamalzadeh,A.
This experiment was conducted to evaluate the effect of some feed restriction regimes on the performance, carcass characteristics and hematological values of broiler chickens. A number of 480 one-day-old Cobb broilers were distributed into 24 floor pens and reared for 42 days. A basal diet was formulated according to the NRC (1994) recommendations for starter (1-11 d), grower (12-28 d) and finisher (29-42 d) periods. The restricted birds were fed 8 h per day from 7 to 21 (R7-21d), 14 to 28 d (R14-28d) or from 21 to 35d (R21-35d), while the control birds were fed ad libitum. Birds and feed were weekly weighed, and dead birds were submitted to necropsy to determine the cause of death. At the end of experiment, blood samples were taken from 3 birds per pen,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Ascites; Broiler; Feed restriction; Hematological indices; Performance.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2010000300006

Blood parameters of Angus and Nellore young bulls fed diets with or without forage.
Provedor de dados: 96
Autores: Rennó,Luciana Navajas; Gomes,Rafael Aparecido; Martins,Taiane da Silva; Busato,Karina Costa; Ladeira,Marcio Machado; Oliveira,Maria Helena de; Silva Júnior,Jarbas Miguel da; Chizzotti,Mario Luiz.
ABSTRACT We evaluated blood parameters of Angus and Nellore bulls fed diets with and without forage. Forty animals with initial body weight (BW) of 380±16.2 kg were housed in individual stalls. Eight bulls of each breed were fed a whole shelled corn (WSC) diet [850 g kg−1 of WCS and 150 g kg−1 of a pellet based on soybean meal, dry mater (DM) basis] or a ground corn with silage (GC) diet (300 g kg−1 of silage and 700 g kg−1 of a concentrate based on corn and soybean meal, DM basis), ad libitum, and four animals of each breed were limited-fed the GC diet [feed restriction (FR), 55% of the DM intake of bulls fed ad libitum, adjusted for the metabolic BW]. Intake was measured daily, and a metabolism trial was conducted with total collection of feces and urine...
Tipo: Info:eu-repo/semantics/other
Palavras-chave: Blood metabolites; Bos taurus indicus; Bos taurus taurus; Feed restriction; Hormones.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982019000100712

Qualidade de cortes de suínos recebendo ractopamina na ração em diferentes programas alimentares - DOI: 10.4025/actascianimsci.v30i2.4682
Provedor de dados: 2
Autores: Cantarelli, Vinicius de Souza; UFLA; Zangeronimo, Márcio Gilberto; UFLA; Almeida, Erin Caperuto de; UFLA; Wolp, Raquel Celidonio; UFLA; Pereira, Leandro de Melo; UFLA; Fialho, Elias Tadeu.
Avaliou-se a suplementação de ractopamina associada à restrição alimentar em rações com elevado teor de lisina sobre a composição de cortes suínos. Foram utilizados 30 suínos machos castrados (peso 107,2 ± 6,2 kg), recebendo as dietas experimentais durante 28 dias pré-abate. Foi utilizado um delineamento em blocos casualizados em fatorial 2 x 2 + 1 (dois níveis de ractopamina – 0 ou 5 ppm – em rações com 1,03% de lisina total; fornecidas à vontade ou 15% de restrição, e um tratamento controle, ad libitum, sem ractopamina, contendo 0,8% de lisina total) com seis repetições. Os cortes foram obtidos da carcaça esquerda resfriada. Foram avaliados o rendimento do filezinho (RFIL), as porcentagens de carne no pernil (PCPER), a paleta (PCPAL), a sobrepaleta...
Palavras-chave: 5.04.03.00-1    Nutrição e Alimentação Animal modificador de carcaça; Restrição alimentar; Barriga; Filezinho; Pernil. carcass modifier; Feed restriction; Belly; Tenderloin; Ham.
Ano: 2008
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/4682

Live performance, carcass quality, and economic assessment of over 100kg slaughtered pigs
Provedor de dados: 45
Autores: Oliveira,E.A.; Bertol,T.M.; Coldebela,A.; Santos Filho,J.I.; Scandolera,A.J.; Warpechowski,M.B.
Recent genetic improvement has developed pigs with maximum potential for protein deposit at higher weights; however, their optimal slaughter weight still needs to be determined. The objective of the study was to evaluate live performance, carcass traits, and economic viability of 417 Agroceres PIC pigs slaughtered with 100, 115, 130, and 145kg live weight. Pigs were reared in pens with 10-11 barrows and gilts each, offered a feed allowance of 2.8kg/pig/day until the following slaughter weights (SW): 99.65±0.82kg, 118.53±0.98kg, 133.97±1.17kg, and 143.90±1.24. There was no interaction between sex and SW (P&gt;0.05). Backfat thickness, fat area, and loin eye area linearly increased with SW (P&lt;0.001; R2: 70.12-77.44%), and carcass yield increased in a...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Carcass grading; Feed restriction; Heavy pigs; Pork production.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000601743

Qualitative feed restriction on productive performance and lipid metabolism in broiler chickens
Provedor de dados: 45
Autores: Cornejo,S.; Gadelha,A.C.; Pokniak,J.; Villouta,G.
A trial was carried out to evaluate the effect of qualitative restriction at different rearing phases on liver fatness and plasma triglycerides without impairing the productive performance of broiler chickens. One hundred and seventy-six male chicks were randomly assigned to four treatments and reared in battery brooders (16 pens with 11 birds each) from 1 to 49-day-old. In the control group, chicks were fed a starter diet (1 to 28-day-old) with 3,300kcal ME/kg of diet and 22.5% CP; grower diet (29 to 42-day-old) 3,300kcal ME/kg of diet and 18.2% CP; and the finisher diet (43 to 49-day-old) 3,300kcal ME/kg and 18.2% CP. Three restrict groups were fed a low 2,800kcal ME/kg of diet and 24% CP from 7 to 14-day-old (treatment 1); from 7 to 21-day-old...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Broiler chicken; Feed restriction; Productive performance; Liver; Triglyceride.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352007000600031

Meat quality and cut yield of pigs slaughtered over 100kg live weight
Provedor de dados: 45
Autores: Bertol,T.M.; Oliveira,E.A.; Coldebella,A.; Kawski,V.L.; Scandolera,A.J.; Warpechowski,M.B.
Meat quality and cut yield of pigs slaughtered between 100 and 150kg live weight were evaluated. Pigs (417 Agroceres PIC barrows and gilts) were fed a daily allowance of 2.8kg per head from 80kg until 100.71±0.85, 118.58±0.99, 134.07±1.18 or 143.90±1.24kg live weight. Seventy-one pigs were used for the evaluation of primal and subprimal cuts. There was no interaction between sex and slaughter weight for any of the evaluated parameters. Ham, shoulder, and loin weights linearly increased (P&lt;0.01; R2: 84.3-93.2%) with increasing slaughter weight, which, however, had little effect on primal cuts meat yield. Increasing slaughter weight promoted a linear (P&lt;0.05) and a quadratic (P&lt;0.01) increase of red/green coordinate (a* value) of the loin and ham,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Feed restriction; Pork production; Heavy hogs; Carcass grading.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352015000401166

Carcass characteristics and meat quality of heavy swine fed different citrus pulp levels
Provedor de dados: 45
Autores: Watanabe,P.H.; Thomaz,M.C.; Ruiz,U.S.; Santos,V.M.; Masson,G.C. I; Fraga,A.L.; Pascoal,L.A.F.; Robles-Huaynate,R.A.; Silva,S.Z.
An assay with 36 swine initially weighting 83.7±5.1kg body weight (BW) was carried out to evaluate the effects of the use of different dietary citrus pulp levels, 0, 10%, 20%, and 30%, upon digestive organs weights, carcass characteristics, and meat quality of animals subjected to qualitative feed restriction program, and slaughtered at 130kg BW. Linear response (P&lt;0.05) on the weight of stomach, colon, and liver were observed. Negative linear responses (P&lt;0.05) on final BW and carcass yield relative to citrus pulp addition to the diet were observed. Although a negative linear effect (P&lt;0.05) of increasing dietary levels of citrus pulp had been observed on ham weight, yield of this by product was not affected (P&amp;gt;0.05). Higher levels of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Swine; Carcass typification; Feed restriction; Soluble fiber.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352010000400023