scholarly journals Effect of Herbal Methionine in Low Protein Diet on Performance, Carcass Characteristics, Immune Response and Some Blood Parameters in Broiler Chickens

2018 ◽  
Vol 9 (20) ◽  
pp. 1-9
Author(s):  
Farzad Mohsenzadeh Tori ◽  
Mansour Rezaei ◽  
Mohammad Kazemi Fard
Keyword(s):  
Immune Response ◽  
Broiler Chickens ◽  
Carcass Characteristics ◽  
Blood Parameters ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

Effects of low protein diet and low protein diet supplemented with synthetic essential amino acids on meat quality of broiler chickens

2012 ◽  
Vol 84 (6) ◽  
pp. 489-495 ◽  
Author(s):  
Hiroyuki Kobayashi ◽  
Kazuki Nakashima ◽  
Aiko Ishida ◽  
Akane Ashihara ◽  
Masaya Katsumata
Keyword(s):  
Amino Acids ◽  
Meat Quality ◽  
Broiler Chickens ◽  
Essential Amino Acids ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein

scholarly journals Protein and energy relations in the broiler chicken

1989 ◽  
Vol 61 (2) ◽  
pp. 223-233 ◽  
Author(s):  
R. W. Rosebrough ◽  
J. P. McMurtry ◽  
N. C. Steele
Keyword(s):  
G Protein ◽  
Broiler Chickens ◽  
Control Diet ◽  
Glucose Production ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Intermittent Feeding ◽  
Low Protein ◽  
Feeding Regimen

1. Broiler chickens growing from 7 to 28 d of age were given: (1) a 210 g protein/kg control diet for the entire experimental period, (2) an intermittent feeding regimen (210 g protein/kg diet for either 1 or 2 d followed by a 1 d fast), or (3) a daily change in the dietary protein level from 120 to 300 g/kg diet. Treatment variables examined were lipogenesis and glucose production in vitro, and circulating concentrations of insulin, triiodothyronine (T3) and thyroxine (T4) to determine the effects of chronic or acute dietary treatments.2. Giving the 300 g protein/kg diet or withholding feed for 1 d decreased (P < 0.05) lipogenesis in vitro compared with controls.3. Giving the 120 g protein/kg diet or refeeding with a 210 g protein/kg diet for 1 or 2 d increased (P < 0.05) lipogenesis in vitro compared with controls. Glucose production was affected in the same manner.4. Fasting decreased (P < 0.05) plasma insulin and T3 and increased T4. Both refeeding and a low-protein diet increased T3. Refeeding increased and a low-protein diet decreased insulin.5. Chronic use (7-28 d of age) of either an alternating protein or intermittent feeding regimen caused greater responses compared with acute bouts (single cycle) of either of the regimens.

scholarly journals Effects of Guanidinoacetic Acid in Low Protein Diet on Growth Performance and the Incidence of Ascites in Broiler Chickens

2016 ◽  
Vol 7 (14) ◽  
pp. 51-44
Author(s):  
Mohammad Reza Sharifi ◽  
Fariborz Khajali ◽  
Behnam Ahmadi Jonaghani ◽  
Hossien Hassan Pour ◽  
Abdolrasoul Safarpour
Keyword(s):  
Growth Performance ◽  
Broiler Chickens ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein ◽  
Guanidinoacetic Acid

scholarly journals The response of fast-, medium- and slow-growing chickens to a low protein diet

2021 ◽  
Vol 66 (No. 3) ◽  
pp. 97-105
Author(s):  
Darina Chodová ◽  
Eva Tůmová ◽  
Mohamed Ketta
Keyword(s):  
Meat Quality ◽  
Dietary Protein ◽  
Carcass Characteristics ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Feed Consumption ◽  
Fast Growing ◽  
Protein Levels ◽  
Low Protein ◽  
Slow Growing

The aim of the present study was to evaluate the effect of two dietary protein levels on performance, carcass characteristics, and meat quality parameters in fast- (Ross 308), medium- (JA757), and slow-growing (ISA Dual) chickens to assess the interaction of the two factors. Each genotype was divided into a control group fed a commercial type of feed mixture and an experimental group fed a low-protein diet (LP). The trial was terminated after a common period of fattening of each genotype, and 20 chickens per group (sex ratio 1 : 1) were selected for the carcass and meat analysis. The results indicated that the LP diet decreased growth (P &lt; 0.001) and increased feed consumption (P &lt; 0.001) more in the fast-growing than in the slow-growing genotypes; however, reduced mortality was detected in fast-growing chickens. The LP diet had a negative effect on the European performance efficiency factor (P &lt; 0.001) in fast- (–10%) and medium-growing (–6%) but not in slow-growing chickens. The main effect of the genotype on the carcass characteristics included the highest (P &lt; 0.001) dressing out and breast percentage in fast-growing chickens and the highest (P &lt; 0.001) percentage of thigh and abdominal fat in the slow-growing genotype. The LP diet had only a minor effect on the carcass traits. Regarding meat quality characteristics, slow-growing chickens were characterized by higher contents of dry matter (P &lt; 0.001) and crude protein (P &lt; 0.001) and lower contents of ether extract (P &lt; 0.001) and cholesterol (P &lt; 0.001) compared to medium- and fast-growing chickens. The individual effects of the genotypes were manifested by the largest cross-sectional area of the muscle fibres of pectoralis major in fast-growing chickens (P &lt; 0.001). The results of the present study indicate a significant interaction of the dietary protein levels and genotypes in growth performance and a negligible effect on the carcass composition and physical and chemical quality of meat

The effects of carbadox on the performance and carcass characteristics of early-weaned pigs given high- and low-protein diets

1982 ◽  
Vol 34 (2) ◽  
pp. 111-114 ◽  
Author(s):  
R. G. Campbell
Keyword(s):  
Growth Performance ◽  
Crude Protein ◽  
Carcass Characteristics ◽  
Live Weight ◽  
High Protein ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Low Protein ◽  
High Protein Diets ◽  
Protein Diets

ABSTRACTThirty-six male pigs weaned at 28 days of age were used to study the effects of methyl-3-(2- quinoxalinylmethylene) carbazate-N1, N4-dioxide (carbadox) in high- and low-protein diets on the performance of pigs growing between 7 and 32 kg live weight, and on carcass characteristics at the latter weight.The inclusion of carbadox (55 mg/kg) in a high-protein diet containing 195 g crude protein per kg and 10·2 g lysine per kg had no effect on performance or on carcass characteristics. Pigs offered the high-protein diets grew more rapidly, had a lower food conversion ratio and were leaner at 32 kg live weight than those offered a lowprotein diet containing 146g crude protein per kg and 6·0 g lysine per kg. Supplementation of the low-protein diet with lysine (4·2 g/kg) had no effect on performance or carcass characteristics but the inclusion of carbadox in the low-protein diet increased growth performance and reduced carcass backfat measurements at 32 kg. However, the performance was inferior, and the backfat thickness greater, compared with the high-protein diets. On the other hand, supplementation of the low-protein diet with lysine plus carbadox raised growth performance and reduced carcass backfat measurements to the levels exhibited on the high protein diets.

scholarly journals Effects of prebiotic (Fermacto) in low protein diet on some blood parameters and intestinal microbiota of broiler chicks

2008 ◽  
Vol 7 (3) ◽  
pp. 313-320 ◽  
Author(s):  
Mahalam Ghiyasi ◽  
Mansour Rezaei ◽  
Hadi Sayyahzadeh ◽  
Farid Firouzbakhsh ◽  
Amir Attar
Keyword(s):  
Intestinal Microbiota ◽  
Blood Parameters ◽  
Protein Diet ◽  
Low Protein Diet ◽  
Broiler Chicks ◽  
Low Protein
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