scholarly journals RESPONSE TO METHIONINE SUPPLEMENTATION OF BROILER CHICKS FED PRACTICAL CORN-GROUNDNUT MEAL DIETS IN THE TROPICS

2021 ◽  
Vol 7 (2) ◽  
pp. 106-111
Author(s):  
M. C. Njike ◽  
L. I. Ndife
Keyword(s):  
Energy Levels ◽  
Metabolizable Energy ◽  
Energy Concentration ◽  
Broiler Chicks ◽  
Dietary Proteins ◽  
Protein Levels ◽  
Cystine Content ◽  
Feeding Trials ◽  
Methionine Supplementation ◽  
The Tropics

Two floor feeding trials, involving 1000 broiler chicks fed two different practical-type diets, were conducted in order to determine the methionine and total sulphur amino acid (TSAA) requirements of broiler chicks 0-6 weeks). Two protein levels (20 and 23%) each with an energy concentration of 2800 Kcal ME (kg diet and four supplemental methionine levels (0.1, 0.2, 0.3 and 0.4%) were tested. At the end of 6 - week feeding period, a common finisher ration was fed to 10 weeks of age. Under our experimental circumstances with dietshaving 23% protein and metabolizable energy of 2800 Kcal ME/kg diet and based on assumed methionine and cystine content of feeding stuff, the quantitative requirement for methionine of broiler chicks up to six weeks of age were about 0.53% diet which is equivalent to 2.3% of the dietary protein (or TSSA of 0.85 per cent diet, that is 3.7 per cent protein). Higher supplemental methionine at this protein and energy levels resulted in deterioration in liveweight gain and slight but non-significant improvement in feed/gain ratio. The rations containing 20% protein performed poorly relative to those containing 23%. Feeding of high quality common finisher rations neutralized the initial gains due to supplemental methionine within each protein levelbut did not offset the gains due to different dietary proteins.

scholarly journals PROTEIN AND ENERGY REQUIREMENTS OF BROILER CHICKENS IN THE TROPICS

2021 ◽  
Vol 7 (2) ◽  
pp. 97-105
Author(s):  
M. C. Njike ◽  
L. I. Ndife
Keyword(s):  
Energy Level ◽  
Feed Efficiency ◽  
Broiler Chickens ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Energy Requirements ◽  
Broiler Chicks ◽  
Maximal Growth ◽  
Protein Levels ◽  
The Tropics

An experimental design consisting of four or three protein levels and three energy levels were used to determine the optimum protein and energy requirements for starting broilers (0-6) weeks of age and finishing broilers (6-10) weeks of age. For the starting phase, four protein levels (20, 23, 24 and 26%) and three energy levels (2800, 3000 and 3200 Kcal ME/kg) were employed, while in the finishing phase three protein levels (18, 20 and 22%) and the same three energy levels as in the starting phase were used. In the two experiments growth rate and feed efficiency improved as protein level increased. The 3000 Keal ME/kg energy level appeared to be the best for maximal growth. Of the four protein levels used for the starting phase, the minimum required for growth was clearly shown to be 23% while 20% was minimum required for the finishing phase. The results of the present studies indicate that the following minimal protein and metabolizable energy levels were required for broiler chicks in the tropics: 23–24% protein with energy level of 2800-3000 Kcal ME/kg for the starting phrase and 20% protein and energy level of 2800 - 3000 Kcal ME/kg for the finishing phase.

scholarly journals Determination of Optimum Protein and Energy Levels for Broiler Chicks in the Tropics

2021 ◽  
Vol 3 (1) ◽  
pp. 177-183
Author(s):  
J. M. Olomu
Keyword(s):  
Energy Level ◽  
Energy Content ◽  
Energy Levels ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Tropical Country ◽  
Protein Levels ◽  
The Tropics ◽  
Slight Depression

THREE experiments were conducted to investigate the effects of different protein levels (17, 20, 23 and 26%) and energy levels (2800, 3000 and 3200 KCals/Kg diet) on the performance of broiler chicks in the tropics. Maximum weight gains and efficiency of feed conversion were obtained on the rations containing 23 or 26% protein. As the dietary energy level increased, there was a slight depression in weight gain. The best performance of chicks was obtained on the rations containing 2800 KCals/Kg diet. Feed intake was observed to be inversely related to energy content, although in most cases not significantly so at each protein and energy series. Generally birds were observed to meet their energy requirements. From these studies, a protein level of 23 or 26% and energy level of 2800 or 3000 K Cal/Kg diet may be tentatively recommended for a tropical country like Nigeria.

scholarly journals Growth and feed utilization of Boer x Kacang crossbred goats offered total mixed rations of different protein and energy levels

2018 ◽  
Vol 22 (4) ◽  
pp. 188
Author(s):  
Simon P. Ginting ◽  
Kiston Simanihuruk ◽  
Antonius Antonius ◽  
Andi Tarigan
Keyword(s):  
Energy Density ◽  
Protein Level ◽  
Crude Protein ◽  
Energy Levels ◽  
Dietary Treatment ◽  
Feed Utilization ◽  
Metabolizable Energy ◽  
High Rate ◽  
Protein Levels ◽  
Crude Protein Level

The aim of this study was to evaluate the growth of and feed utilization by Boer x Kacang crosses goats fed on total mixed ration differing in protein and energy levels. Four total mixed rations combination were formulated to contain 16 and 18% crude protein and 2650 and 2850 Kcal ME/ kg DM (dried matter) energy density. Twenty-eight male Boer x Kacang crosses goats (14.5 ± 1.14 kg) and of age ranging from 4 to 5 months were randomly allocated to one of these four TMRs (total mixed rations) (7 animals/TMR). The effects of dietary treatment were assessed using the general linear model and significance of the diet effects was detected using Duncan’s multiple range test. Dry matter intake increased as metabolizable energy density of diet increased from 2650 to 2850 Kcal/kg DM, but it is not affected by increasing crude protein level from 16 to 18%. The average daily gains were not improved (P>0.05) as the crude protein levels and metabolizable energy density of diet increased. Crude protein levels and ME density did not affect (P>0.05) the DM, OM and energy digestibility, but NDF digestibility was affected by the ME density of diets (P<0.05). Daily N intakes were greater (P<0.0%) in goats received diets higher in the crude protein and metabolizable energy levels. At this high rate of feed intake this type of goats are able to gain optimally when offered feed with crude protein level of 16% and metabolizable energy density of 2850 Kcal/kg DM.

Methionine supplementation of low protein diets for broiler chicks in the tropics

1976 ◽  
Vol 17 (5) ◽  
pp. 463-469 ◽  
Author(s):  
G. M. Babatunde ◽  
B. L. Fetuga ◽  
E. Kassim
Keyword(s):  
Broiler Chicks ◽  
Low Protein ◽  
Methionine Supplementation ◽  
The Tropics ◽  
Protein Diets

scholarly journals Effect of varying energy and protein levels on carcass characteristics of helmet Guinea fowls in the tropics

2020 ◽  
Vol 44 (1) ◽  
pp. 222-226
Author(s):  
C. N. Odukwe ◽  
S. N. Ukachukwu ◽  
D. N. Onunkwo ◽  
U. K. Oke
Keyword(s):  
Energy Levels ◽  
Carcass Characteristics ◽  
Live Weight ◽  
Protein Levels ◽  
Randomized Design ◽  
Protein X ◽  
Carcass Performance ◽  
Breast Weight ◽  
The Tropics ◽  
Main Effects

The effect of energy and protein and their interaction on carcass characteristics of helmet Guinea fowls in the tropics was investigated using one hundred and thirty-five Guinea fowls. The experiment which lasted for 5 weeks involved a 3*3 factorial in completely randomized design. The birds were randomly assigned to experimental diets containing three energy levels: 2500, 2600 and 2700 kcal/kg denoted as E1 , E2 and E3 respectively and three protein levels: 15%, 16% and 17% CP denoted as P1 , P2 and P3 respectively. The factorial design involved nine treatment combinations. The birds were allocated to each diet and were replicated three times to contain five birds per replicate and 15 birds per treatment. The result revealed significant (P<0.05) differences in the main effects of protein on dressed weight, thigh weight and breast weight. The 17% CP recorded the most significant values for dressed weight (689.44 g) and breast weight (24.89g). The varying energy levels also affected significantly (P<0.05) the dressed weight, thigh weight, wing weight, breast weight, back weight and gizzard weight of the birds. The 2600 kcal/kg recorded the highest dressed weight (717.22 g) compared to the other energy levels. However, the 2700 kcal/kg recorded the most significant values in thigh, wing, breast, back and gizzard weights. The interaction effect of protein x energy levels revealed significant (P<0.05) effects on live weight, wing weight, breast weight, back weight and gizzard weight of the Guinea fowls. The findings from this experiment conclude that diet of Helmeted Guinea fowl containing 15% CP and 2700kcal/kg ME gave the best carcass 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 Ruminal Microbiota and Fermentation in Response to Dietary Protein and Energy Levels in Weaned Lambs

Animals ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 109 ◽  
Author(s):  
Xiaokang Lv ◽  
Kai Cui ◽  
Minli Qi ◽  
Shiqin Wang ◽  
Qiyu Diao ◽  
...  
Keyword(s):  
Growth Performance ◽  
Energy Levels ◽  
High Energy ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Dietary Energy ◽  
Ruminal Fermentation ◽  
Protein Levels ◽  
Energy Group ◽  
Low Energy Diet

Supplying sufficient nutrients, such as dietary energy and protein, has a great effect on the growth and rumen development of ruminants. This study was conducted to evaluate the effects of dietary energy and protein levels on growth performance, microbial diversity, and structural and physiological properties of the rumen in weaned lambs. A total of 64 two-month-old Hu lambs were randomly allotted to 2 × 2 factorial arrangements with four replicates and with four lambs (half male and half female) in each replicate. The first factor was two levels of dietary metabolizable energy (ME) density (ME = 10.9 MJ/Kg or 8.6 MJ/Kg), and the second factor was two levels of dietary crude protein (CP) content (CP = 15.7% or 11.8%). The trial lasted for 60 days. A low dietary energy level restrained the growth performance of lambs (p < 0.05). The ruminal concentration of acetate and the ratio of acetate to propionate increased but the propionate concentration decreased significantly with the low energy diet. However, the rumen morphology was not affected by the diet energy and protein levels. Moreover, a low energy diet increased ruminal bacterial diversity but reduced the abundance of the phylum Proteobacteria (p < 0.05) and genus Succinivibrionaceae_uncultured (p < 0.05), which was associated with the change in ruminal fermentation phenotypes. By indicator species analysis, we found three indicator OTUs in the high energy group (Succinivibrionaceae_uncultured, Veillonellaceae_unclassified and Veillonellaceae_uncultured (p < 0.01)) and two indicator OTUs in the low energy group (Bacteroidales_norank and Lachnospiraceae_uncultured (p < 0.01)). In conclusion, these findings added new dimensions to our understanding of the diet effect on rumen microbial community and fermentation response, and are of great significance for establishing the optimal nutrient supply strategy for lambs.

scholarly journals 209 Appropriation of feedlot rations’ nutrient levels of imported cattle in central region of Turkey

2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 149-149
Author(s):  
Mehmet Basalan ◽  
Ozan A Ekinci
Keyword(s):  
Beef Cattle ◽  
Metabolic Diseases ◽  
Energy Levels ◽  
National Research Council ◽  
Herd Size ◽  
Metabolizable Energy ◽  
Neutral Detergent Fiber ◽  
Nutrient Contents ◽  
Protein Levels ◽  
Period Data

Abstract An experiment was conducted to determine the nutrient contents of concentrated feed and Total Mixed Ration (TMR) samples taken from 6 feedlot farms in Kirikkale province and their compensation of bulls’ requirements. In the province, 6 farms active in the feedlot business were identified, and their manufactured feed and TMR samples were taken at 15-day intervals, starting from cattle received either from Europe or South America. For all periods, in each sample, crude fat (EE), crude protein (CP), crude ash (CA), crude cellulose (CS), dry matter (DM), acid detergent fiber (ADF) and neutral detergent fiber (NDF) levels were determined based on Association of Official Analytical Chemists (AOAC) methods. Metabolizable Energy levels of Total Mixed Rations (TMR) and concentrate part of feeds were calculated based on Turkish Standard Institute (TSE) method. The determined values were evaluated according to animal numbers (herd size) in feedlot and fattening periods. It was determined whether the size of the feedlot farm has an effect on TMR preparation and the nutrients in TMR are matching with the beef cattle requirements during the fattening period. Data was analyzed by using one-way ANOVA and means were separated by using LSD. Results showed that CP levels of the TMRs were significantly higher than the requirements listed in Nutrient Requirements of Beef Cattle published by National Research Council (NRC) in both cattle receiving fattening periods (0–45 days and 45–90 days) (P &lt; 0,05). Additionally, cattle feeders fed their cattle with similar protein levels independent from the size of feedlot (P &gt; 0,05), unexpectedly. Although it was compared with requirements, energy levels were similar in all feedlots (P &gt; 0,05). All determined nutrients levels of concentrate parts of TMRs in large and small herds were similar (P &gt; 0,05). In conclusion, considering that this situation absolutely increases cost of fattening and may cause metabolic diseases.

scholarly journals Effect of Prebiotics and Probiotics as natural growth promoters in broiler chicks

2021 ◽  
Vol 35 (1) ◽  
pp. 48-55
Author(s):  
C. T. Ezeokeke
Keyword(s):  
Crude Protein ◽  
Immune Status ◽  
Control Diet ◽  
Metabolizable Energy ◽  
Broiler Chicks ◽  
Natural Growth ◽  
Growth Promoters ◽  
Protein Levels ◽  
Randomized Design ◽  
Metabolizable Energy Intake

Sixty day-old broiler chicks (Ross breed) were treated with or without prebiotics and probiotics (Natural growth promoters) containing immune extracts at the starter (1-5wks) and finisher (6-10wks) phases. The birds were allocated to no diets (one test and one control) in a contpletely randomized design. Each treatment had three replicates of ten birds per replicate. Energy and protein levels of the diets were 3000 Kcal ME/kg and crude protein (CP) of 20% and 3000 Kcal ME/kg and 17% CP at starter and finisher phases, respectively. The experiment lasted ten weeks. The daily metabolizable energy intake for body maintenance, 146.97 cal./ day for birds on the tesi diet was significantly (P<0.05) higher than those birds on the control diet, 113.04 cal./day at the starter phase. At the finisher phase, efficiency of feed utilization (0.38 as against 0.19), mean weights of live (1920g as against /570g) and plucked (1740 as against 1380g) parts of the treated birds were significantly (P<0.05) betier than the untreated birds. Other parameters measured increased more for the treated birds but were not significant (P>0.05). The immune status conferred on the birds ensured adequate protection from death for the treated birds. The untreated birds suffered 67% more mortality than the treated birds. Though mortality rate was within the acceptable limits for both treated and untreated birds. The results of the experiment showed that Enterococcus faesium, inulin together with cell-wall fragments and immune stimulant extracts as probiotics and prebiotics enhanced growth performance of broiler chicks. The trial was successful. 

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