scholarly journals EFFECT OF DIFFERENT LEVELS OF DIETARY CRUDE PROTEIN AND METABOLIZABLE ENERGY ON PRODUCTIVE PERFORMANCE OF LOCAL SINAI POULTRY STRAIN DURING THE GROWING PERIOD AND SUBSEQUENT LAYING PERFORMANCE

2017 ◽  
Vol 20 (2) ◽  
pp. 213-226
Author(s):  
M.M. Beshara ◽  
Kout Elkloub M.El.Moustafa ◽  
M.A.A. Hussein ◽  
M.G. Kasim ◽  
A.A.A. Rehan
Keyword(s):  
Crude Protein ◽  
Metabolizable Energy ◽  
Productive Performance ◽  
Growing Period ◽  
Dietary Crude Protein ◽  
Laying Performance ◽  
Different Levels

scholarly journals Productive performance of Mexican Creole chickens from hatching to 12 weeks of age fed diets with different concentrations of metabolizable energy and crude protein

2020 ◽  
Author(s):  
Miguel Ángel Matus-Aragón ◽  
Fernando González-Cerón ◽  
Josafhat Salinas-Ruiz ◽  
Eliseo Sosa-Montes ◽  
Arturo Pro-Martínez ◽  
...  
Keyword(s):  
Crude Protein ◽  
Metabolizable Energy ◽  
Productive Performance

scholarly journals Effect of varying dietary crude protein and metabolizable energy levels on leg abnormalities and performance in broiler chickens

2021 ◽  
Author(s):  
Leodan T Rodríguez-Ortega ◽  
Alejandro Rodríguez-Ortega ◽  
Fredy Mera-Zuñiga ◽  
Arturo Pro-Martínez ◽  
Filogonio J Hernández-Guzmán ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Crude Protein ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Dietary Crude Protein ◽  
And Performance

scholarly journals The influence of dietary protein and energy levels on the performance, meat bone ratio and meat chemical composition of SenSi-1 Agrinak chicken

2019 ◽  
Vol 24 (1) ◽  
Author(s):  
Cecep Hidayat ◽  
Sofjan Iskandar
Keyword(s):  
Chemical Composition ◽  
Crude Protein ◽  
Production Efficiency ◽  
Energy Levels ◽  
Live Weight ◽  
Metabolizable Energy ◽  
Meat Production ◽  
Treatment Combination ◽  
Protein Levels ◽  
Dietary Crude Protein

<p class="Default"><span lang="EN-US">Sensi-1 Agrinak is a strain of the improved native chickens for meat production in Indonesia. The objective of </span><span lang="IN">this</span><span lang="EN-US"> study  was to investigate influence of different dietary energy and protein levels on </span><span lang="IN">p</span><span lang="EN-US">erformance, meat bone ratio</span><span lang="IN">,</span><span lang="EN-US"> and meat chemical composition of Sensi-1 Agrinak chicken, reared until 10 weeks of age. Two hundred and sixteen of unsexed day old chickens (DOC) of  Sensi-1 Agrinak were subjected to six experimental rations differed in dietary crude protein (CP) content,. </span><span lang="IN">Namely:</span><span lang="EN-US"> 21;19; and 17 % and dietary  metabolizable  energy (ME) (2800 and 3000 kcal/kg). Each treatment combination was replicated  four times and fed from day old to 10 weeks old. In each treatment combination there were nine unsexed-DOCs. The parameters observed were performance (i.e. live weight, feed intake, viability, FCR), economic index (European Production Efficiency Factor/EPEF), meat bone ratio, and meat chemical composition.  </span><span lang="IN">R</span><span lang="EN-US">esult showed that  </span><span lang="EN-US">increas</span><span lang="IN">ed</span><span lang="EN-US"> of dietary CP level increased live weight and EPEF (p&lt;0.05). Sensi-1 Agrinak chicken had the best FCR (2.59), when fed  diet containing 21% CP and 3000 kcal/kg. Increas</span><span lang="IN">ed</span><span lang="EN-US"> dietary CP level increased the  meat-bone ratio of breast, thighs, and drumsticks. Meanwhile, increas</span><span lang="IN">ed</span><span lang="EN-US"> levels of dietary CP and ME did not affect (p&gt;0.05) meat chemical composition. It </span><span lang="IN">is</span><span lang="EN-US"> concluded that optimal dietary levels of crude protein and energy for unsexed Sensi-1 Agrinak chicken  up to 10 weeks of age were 21% CP and 3000 kcal/kg.</span></p>

scholarly journals Egg performance, egg quality, and nutrient utilization in laying hens fed diets with different levels of rapeseed expeller cake

2008 ◽  
Vol 19 (3) ◽  
pp. 233 ◽  
Author(s):  
S. SWIATKIEWICZ ◽  
J. KORELESKI ◽  
A. ARCZEWSKA-WLOSEK
Keyword(s):  
Crude Protein ◽  
Laying Hens ◽  
Egg Quality ◽  
Nutrient Utilization ◽  
Metabolizable Energy ◽  
Available Phosphorus ◽  
Dietary Level ◽  
Calcium And Phosphorus ◽  
Egg Performance ◽  
Different Levels

The aim of this study was to evaluate the effect of different levels of rapeseed expeller cake (RC) in the diet of laying hens on egg performance, egg quality, retention and excretion of nitrogen, calcium and phosphorus, and metabolizability of energy. The experiment was carried out with 72 Bovans Brown hens, from 28 to 53 weeks of age. Experimental treatment consisted of four isonitrogenous and isocaloric corn-soybean diets (as calculated: 17% crude protein, 11.6 MJ/kg metabolizable energy, 0.81% lysine, 0.36% methionine, 3.60% calcium and 0.37% available phosphorus), containing 0, 4, 6 or 8% RC. The RC used was produced from double zero rapeseed and contained 29.3% crude protein, 17.4% crude fat, 10.8% crude fibre, 0.63% calcium, 0.97% phosphorus, 1.91% lysine and 0.84% methionine. During the experimental period, the dietary level of RC had no significant effects on egg performance and egg quality parameters. Boiled eggs from hens fed a diet with 8% RC were characterized by an inferior flavour to those from other groups. There were no treatment effects on nitrogen balance or metabolizability of energy, though the highest dietary level of RC negatively affected retention and excretion of calcium and phosphorus.;

Effect of different levels of dietary crude protein on the growth performance and carcass characteristics of commercial broilers at different phases of growth

2017 ◽  
Author(s):  
T. Srilatha ◽  
V. Ravinder Reddy ◽  
V. Chinni Preetam ◽  
S.V. Rama Rao ◽  
Y. Ramana Reddy
Keyword(s):  
Amino Acids ◽  
Growth Performance ◽  
Feed Efficiency ◽  
Crude Protein ◽  
Body Weight Gain ◽  
Carcass Characteristics ◽  
Abdominal Fat ◽  
Dietary Crude Protein ◽  
Low Levels ◽  
Different Levels

An experiment was conducted to find out the effect of different levels of crude protein in broiler diets during different phases. i.e., pre starter (0-11d), starter (12-21d) and finisher (22-42d). 360 day-old broilers (Vencobb) were procured from a commercial hatchery and fed either high or low dietary CP diets during pre-starter (23 and 21%) , starter (21 and 19%) and high, moderate or low CP diets during finisher ( 18.5, 17.5 and 16.5%) phases, for a total of 12 possible treatment combinations at d 42. The results showed that the broilers fed low levels of CP ( 21 and 19 %) had significantly(P less than 0.05) higher body weight gain (BWG) and feed intake (FI), and better feed efficiency over the diets with high levels of CP during pre-starter and starter phases (23 and 21%, respectively). The higher (18.5%) level of protein in the finisher phase showed higher BWG and best FCR compared to the lower levels (17.5 and 16.5%). Carcass characters were not influenced by the variation in dietary CP level tested except the abdominal fat weight which was significantly higher in broiler fed low CP diet compared to those fed higher levels of CP during all three phases. The results indicated that the broilers fed low CP diets supplemented with critical amino acids (21 and 19%) had beneficial effect on the growth performance during pre-starter and starter phase. The broilers showed an ability to respond to increase in dietary CP levels during finisher phase.

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