scholarly journals Impacts of Graded Levels of Metabolizable Energy on Growth Performance and Carcass Characteristics of Slow-Growing Yellow-Feathered Male Chickens

Animals ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 461 ◽  
Author(s):  
K. F. M. Abouelezz ◽  
Y. Wang ◽  
W. Wang ◽  
X. Lin ◽  
L. Li ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Shear Force ◽  
The Body ◽  
Metabolizable Energy ◽  
Breast Muscle ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Metabolizable Energy Intake ◽  
Slow Growing

A dose-response study was conducted to investigate the metabolizable energy (ME) requirement for Lingnan chickens from 9 to 15 weeks of age. One thousand two hundred 8-week-old slow-growing yellow-feathered male chickens were allotted to five dietary ME levels (2805, 2897, 2997, 3095 and 3236 kcal/kg). The results revealed that the daily metabolizable energy intake increased (p < 0.01), whereas the feed intake and feed:gain ratio decreased linearly (p < 0.01) with the increment in dietary ME level. The final body weight and daily gain of the highest ME treatment tended (p > 0.05) to be greater than those obtained with the lower ME levels. The fat content in breast muscle showed a quadratic response (p < 0.05) to the increase in dietary energy level. The shear force values of breast muscle in the 2897, 3095 and 3236 kcal/kg treatments were lower (p < 0.05) than those of the 2997 kcal/kg treatment. In conclusion, among the tested ME levels, 3095 kcal/kg was adequate for feed intake, shear force, and plasma uric acid, and 3236 kcal/kg tended to increase the body weight, body gain, and feed conversion ratio of Lingnan males between 9 and 15 weeks of age; further studies are still required for testing higher levels.

scholarly journals Metabolizable energy levels in diets with high lysine for growing and finishing pigs

2019 ◽  
Vol 40 (1) ◽  
pp. 365 ◽  
Author(s):  
Soraia Viana Ferreira ◽  
Lívia Maria dos Reis Barbosa ◽  
Camila Schultz Marcolla ◽  
Marcos Henrique Soares ◽  
Dante Teixeira Valente Júnior ◽  
...  
Keyword(s):  
Body Weight ◽  
Meat Quality ◽  
Feed Intake ◽  
Average Daily Gain ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
Water Losses ◽  
Final Body Weight ◽  
Metabolizable Energy Intake ◽  
Daily Gain

The objective of this experiment was to evaluate the effects of metabolizable energy (ME) levels in diets with high digestible lysine concentration on performance, carcass traits, and meat quality of barrows from 95 to 158 days of age. Eighty commercial hybrid barrows (50 ± 1.82 kg) selected for lean meat deposition, were assigned to four dietary treatments (3,150, 3,235, 3,320, and 3,400 kcal EM kg-1) in a randomized design with 10 replicate pens per treatment and two pigs per pen. From 95 to 116 days of age, we observed no effects of ME on final body weight (FBW), average daily gain (ADG), metabolizable energy intake (MEI), and feed conversion (F: G). Average daily feed intake (ADFI) decreased linearly with increasing ME levels (? = 5.79961 - 0.00096790X - r2 = 0.89). From 95 to 137 days of age, no effects of ME were observed on final body weight (FBW), average daily gain (ADG), metabolizable energy intake (MEI), and feed conversion (F: G). Average daily feed intake (ADFI) decreased linearly with increasing ME (?= 6.1176 - 0.001X - r2= 0.97). From 95 to 158 days, of age no effects of ME were observed on FBW and ADG. Dietary ME influenced the ADFI and F: G, which decreased linearly with increasing ME concentrations (?= 8.12951 - 0.00149X - r2= 0.99; ?= 6.0914 - 0.001X - r² = 0.75, respectively). There was a linear increase in loin eye area (LEA) with increasing ME (? = - 29.851 + 0.0207 X - r² = 0.87). Backfat thickness, pH, and temperature, measured at different times after slaughter (0 min, 45 min, 3 h, and 24 h), were not affected by dietary ME. The level of ME also did not affect the meat quality parameters Color L*, Color a*, Color b*, Warner-Bratzler shear force, thaw water losses, cooking water losses, sum of water losses, intramuscular fat content, and TBARS. Diets with 3,400 kcal kg-1 ME, corresponding to 2.75, 2.57, and 2.31 g digestible lysine/Mcal of ME for pigs from 95 to 116, 116 to 137, and 95 to 158 days of age, respectively, resulted in best performance and carcass traits, without negative effects on meat quality.

Requirement of Metabolizable Energy for Slow-Growing Yellow-Feathered Male Chickens

2019 ◽  
Author(s):  
Khaled Abouelezz ◽  
Yibing Wang ◽  
Weiwei Wang ◽  
Xiajing Lin ◽  
Long Li ◽  
...  
Keyword(s):  
Control Level ◽  
The Body ◽  
Metabolizable Energy ◽  
Breast Muscle ◽  
Plasma Metabolites ◽  
Final Body Weight ◽  
Quadratic Response ◽  
Metabolizable Energy Intake ◽  
Dose Response Study ◽  
Slow Growing

A dose-response study was conducted to investigate the metabolizable energy (ME) requirement for Lingnan chickens from 57 to 105 days of age. 1200 57-d-old slow-growing yellow-feathered male chickens were allotted to five dietary ME levels (2,805, 2,897, 2,997, 3,095 and 3,236 kcal/kg). The 2,997 kcal/kg treatment was considered to be the control level. The results revealed that the daily metabolizable energy intake increased (P &lt; 0.01), whereas the feed intake and feed: gain ratio decreased linearly (P &lt; 0.01) with the increment in dietary ME level. The final body weight and daily gain of the highest ME treatment tended (P &gt; 0.05) to be greater than those obtained with the lower ME levels. The fat content in breast muscle showed a quadratic response (P &lt; 0.05) to the increase of dietary energy level. The shear force values of breast muscle in the 2,897, 3,095 and 3,236 kcal/kg treatments were lower (P &lt; 0.05) than that of the control. Other results were obtained regarding the body composition, meat quality, and plasma metabolites. In conclusion, the dietary ME level 3,236 kcal/kg can be recommended as the optimal ME requirement for slow-growing yellow-feathered male chickens between 57 and 105 d of age.

Growth performance and nutrient digestibility of Wistar albino rats fed processed dehulled jack bean (Canavalia ensiformis)

2020 ◽  
Vol 40 (2) ◽  
pp. 104-111
Author(s):  
O. A. Abu ◽  
O. H. Amusa ◽  
R. O. Atoyebi ◽  
R. A. Kehinde ◽  
F. C. Nworgu
Keyword(s):  
Body Weight ◽  
Growth Performance ◽  
Feed Intake ◽  
Nutrient Digestibility ◽  
Albino Rats ◽  
Weight Changes ◽  
Feed Conversion ◽  
Body Weight Changes ◽  
Final Body Weight ◽  
Jack Bean

A total of fifty 3-4 weeks old albino rats of the Wistar strain weighing 50-60g were randomly allocated to five dietary treatments in a completely randomized block design to investigate the growth performance and nutrient digestibility of the rats fed diets containing processed dehulled jack bean. Five diets were formulated to contain casein (T1)-control diet, dehulled jack bean soaked in filtrate obtained from raw pap(T2), dehulled jack bean soaked in lye solution (T3), dehulled jack bean boiled for 15minutes (T4) while a protein free diet served as a negative control (T5). The experiment lasted for 28-days.Dehulled jack bean significantly (P>0.05) influenced the growth parameters measured for the Wistar rats. Rats on control diets had the highest value for all the growth indices, feed intake (210.90g), final body weight (103.40g), body weight changes (41.90g), feed conversion ratio (5.10) and protein efficiency ratio (1.41). Rats on T2 (soaked in ‘ogi’ liquor) had feed intake value of (147.40g), followed by rats on T4 (boiled for 15minutes) (117.00g), T5 (negative control) (119.07) and T3 (soaked in lye solution) (79.40g) respectively. Rats on T4 had the highest value for final body weight (67.80g), body weight changes (6.30g), feed conversion ratio (12.27) and protein efficiency ratio (0.25) while rats on T3 had the lowest value for final body weight (67.80g), body weight changes (-32.45g), total feed intake (79.40g) with FCR of (-0.96) for the tested diets. Wistar rats placed on lye treated diet had depressed body weight changes of 59.8% compared to the control. Digestibility studies however showed that rats on control diets had the highest digestibility value of DM and other nutrients, while there was no significant (P<0.05) difference in digestibility value of CF, significant (P>0.05) differences existed in DM, digestibility value of CP, EE and Ash. Rats on T3 and T5 had the lowest digestibility value for Ash (11.48) and CP (37.66). Rats fed dehulled jack bean seed soaked in ogi liquor and boiled for 15minutes showed slight improvement in growth performance and nutrient utilization over those fed lye soaked jack bean. All the processing methods were ineffective when compared to the performance of rat fed casein based diets.

scholarly journals Metabolizable energy levels in diets with a fixed nutrient: calorie ratio for free-range broilers

2021 ◽  
Vol 42 (6supl2) ◽  
pp. 4009-4022
Author(s):  
Thiago Rodrigues da Silva ◽  
◽  
Karina Márcia Ribeiro de Souza Nascimento ◽  
Charles Kiefer ◽  
Luanna Lopes Paiva Copat ◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Energy Level ◽  
Body Fat ◽  
Feed Intake ◽  
Carcass Characteristics ◽  
Metabolizable Energy ◽  
Production Performance ◽  
Feed Conversion ◽  
Protein Deposition

The present study proposes to examine the effect of dietary levels of metabolizable energy, under a fixed nutrient:calorie ratio, on the production performance; body fat and protein deposition; and carcass characteristics of free-range broilers from 1 to 84 days of age. Nine hundred unsexed chicks were allocated to six treatments in a completely randomized design with six replicates of 25 birds each. Treatments consisted of diets with varying levels of metabolizable energy (2700, 2800, 2900, 3000, 3100 and 3200 Kcal ME/kg of diet) and a fixed proportion of nutrients relative to the energy level according to the nutritional requirements for each rearing phase. Body weight, weight gain, feed intake, feed conversion, production viability, metabolizable energy intake, protein intake, lysine intake, body fat deposition, body protein deposition and carcass characteristics were evaluated. Data were subjected to analysis of variance and, later, to regression analysis. Increasing levels of metabolizable energy, coupled with a fixed nutrient:calorie ratio, reduced feed intake, increased body weight and weight gain, improved feed conversion and did not affect carcass characteristics. In conclusion, adjusting the nutrient supply according to the dietary energy level improves production performance by improving feed conversion, ensuring adequate nutrient intake and preserving fat and protein deposition in the carcass when the metabolizable energy level is raised up to 3200 Kcal/kg in all rearing stages.

scholarly journals Performance, Haematology and Serum Chemistry of Weaner Rabbits Fed Urea-Treated and Fermented Brewer’s Dried Grains Groundnut Cake-Based Diets

2013 ◽  
Vol 46 (3) ◽  
pp. 81-85 ◽  
Author(s):  
Jonathan Ogagaoghene Isikwenu
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Sodium Content ◽  
Metabolizable Energy ◽  
Equal Weight ◽  
Serum Chemistry ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Treatment Groups ◽  
Groundnut Cake

Abstract The effects of replacing groundnut cake (GNC) with urea-treated and fermented brewer’s dried grains in weaner rabbits diets on the performance, haematology and serum chemistry was investigated. Urea-treated and fermented brewer’s dried grains were used to replace GNC at 0, 25, 50, 75 and 100% levels in weaner rabbits´ diets. Diets were formulated to be isonitrogenous and isocaloric to provide 18% crude protein and 11.00 MJ/kg metabolizable energy. Weaner rabbits of mixed breeds and sexes, aged 8 weeks, were randomly allocated to five treatment groups on equal weight and sex basis. They consisted of two rabbits per replicate and six rabbits per treatment. They were fed ad libitum in hutches for ten weeks. Significant (P < 0.05) differences were observed in final body weight, daily body weight gain, feed intake, feed conversion ratio, white blood cell count (WBC), glucose and sodium content for all treatment groups. Results indicate that urea-treated and fermented brewers dried grains can be used to replace up to 75% GNC (18.00% of the diet) as an alternative plant protein source. Mortality level (3 - 7%) was normal and evenly spread across treatment groups.

scholarly journals Influence of production factors on feed intake and feed conversion ratio of grow-finishing pigs

2017 ◽  
Vol 38 (2) ◽  
pp. 997
Author(s):  
Caio Abércio da Silva ◽  
Aliny Ketilim Novais ◽  
Rita De Kássia Santos ◽  
Carlos Rodolfo Pierozan ◽  
Piero Da Silva Agostini ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
The Sun ◽  
Feed Conversion ◽  
Initial Body Weight ◽  
Good Tool ◽  
Final Body Weight ◽  
Production Factors

The aim of this study was to identify and quantify, through mathematical models, the production factors of grow-finishing (GF) phases that influence the daily feed intake (DFI) and feed conversion ratio (FCR) in pigs. Sixty-five GF farms were evaluated between 2010 and 2013, linked to a cooperative system located in the western Parana State, Brazil, representing 463 batches, with a mean of 642.79 ± 363.29 animals per batch, equalling approximately 300,000 animals. Forty production factors were considered that related to management, sanitation, installations and equipment, nutrition, genetics and environment on the farms. The DFI was influenced by the barn's position relative to the sun (P = 0.048), initial body weight (P < 0.0001) and final body weight (P < 0.0001). It was observed that the FCR was influenced by the barn’s position relative to the sun (P = 0.0001), the use of humidifiers/misting (P = 0.03), the presence of composters (P = 0.006), trees on the sides of barns (P < 0.045), the initial body weight of the pigs (P < 0.0001) and duration of the grow-finishing phase (P < 0.0001). The variables selected in the models explained approximately 44 and 20% of the total variance in the DFI and FCR, respectively, demonstrating that this resource is a good tool for interpreting the factors related to the parameters evaluated.

scholarly journals Growth performance, haematological and biochemical indices of grazed Red Sokoto bucks supplemented with dried ripe plantain peels.

2020 ◽  
Vol 47 (2) ◽  
pp. 264-270
Author(s):  
A. I. Ukanwoko ◽  
N. C. Douglas ◽  
N. C. Igwe
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Growth Performance ◽  
Body Weight Gain ◽  
Conversion Ratio ◽  
The Body ◽  
Feed Conversion ◽  
Final Body Weight ◽  
Blood Profile ◽  
Biochemical Indices

This study was conducted to evaluate the growth performance and blood profile of grazedRed Sokoto bucks supplemented with dried ripe plantain peels. Nine bucks were used for thisexperiment. The goats were apportioned to three treatment diets and dried ripe plantainpeels incorporated at 0%, 5% and 10% inclusion levels for T , T and T respectively. The 1 2 3,bucks were taken out for grazing in the morning (9.00am – 12noon) and thereafter fed theexperimental diet. The experiment lasted for eight (8) weeks. The animals were weighed atthe beginning of the experiment and weekly afterwards. Feed intake was calculated as thedifference between feed served and refusal. Blood samples of the bucks were collected todetermine the blood profile using disposable syringes and sterile needles. Results showedthat the final body weight, body weight gain and feed conversion ratio (FCR) differedsignificantly (P<0.05). The final body weight, body weight gain and FCR were 18.02kg,2.01kg, 3.42; 20.75kg, 3.89kg, 1.26 and 21.35kg, 4.80kg, 1.10 for T , T and T respectively. 1 2 3,Platelet, Alkaline phosphatase (ALP), total protein (TP), urea and creatinine values differedsignificantly (P<0.05). The highest platelet was recorded for bucks on T (212.91x10 3/ul) 3while the lowest was for bucks on T (202.30x103/ul). ALP, TP, urea and creatinine values 1were 29.00u/l, 60.00g/l, 8.00m/mol,72.50m/mol; 30.30u/l, 52.30g/l, 10.00m/mol,141.00m/mol and 42.00u/l, 53.30g/l, 9.70m/mol, 112.30m/mol for T , T and T , respectively. 1 2 3The inclusion of supplemental dried ripe plantain peels in the diet of Red Sokoto bucksenhanced the body weight and did not have any adverse effect on their blood profile.

scholarly journals Penampilan Produksi Sapi PO dan PFH Jantan yang Mendapat Pakan Konsentrat dan ”Hay” Rumput Gajah

2010 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
R Adiwinarti ◽  
I P Kusuma ◽  
C M Sri Lestari
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Protein Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Average Daily Gain ◽  
The Body ◽  
Napier Grass ◽  
Feed Conversion ◽  
Grass Hay

This research has been done during August 2004 - January 2005 at Laboratorium Ilmu Ternak Potong dan Kerja, Fakultas Peternakan Universitas Diponegoro Semarang. The study was set up to investigate the performance of ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay. This research used 4 yearling ongole crossbred (PO) bulls with the initial body weight: 228,17 + 14,77 kg (CV = 6,47%) and 4 yearling friesian holstein crossbred (PFH) bulls with the body weight: 196,34 + 7,64 kg (CV = 3,89%). The Independent Sample Comparisons was used in this study. Those bulls were fed 30% hay of Napier grass and 70% concentrate made of “bungkil kelapa sawit” (80%) and rice bran (20%). The ration was given based on dry matter need, 2.5% of the body weight. Parameters observed were the average daily gain (ADG), feed intake (dry matter intake, crude protein intake, Total Digestible Nutrients’ 2 Sains Peternakan Vol.8 (1), Maret 2010 intake) and feed conversion. Data were analyzed using t-test; except for feed conversion was analyzed deskriptifely.The result indicated that those cattle fed concentrate and Napier grass had ADG and feed intake relatively similar. The average of ADG PO bulls were 0.21 kg and PFH bulls were 0.22 kg. Dry matter intakes of PO and PFH bulls were 3.33 kg/day and 2.83 kg/day. Crude protein intake of PO bulls were 0,45 kg/day and that of PFH bulls were 0,38 kg/day, whereas TDN intake of PO bulls were 1,93 kg/day and PFH bulls were 1,20 kg/day. Feed conversion of PO bulls was 15.86 and that of PFH bulls was 12.86. It can be concluded that the performance of Ongole crossbred and Friesian Holstein crossbred young bulls fed concentrate and Napier grass hay was similar. Those indicated that PFH bulls had productivity that was the same as PO bulls. Key words : Bulls, performance, feed intake, feed conversion

scholarly journals Dietary evaluation of starter broiler chicks fed cooked cocoyam tuber meal (xanthosoma sagitifolium) as energy source in place of maize

2020 ◽  
Vol 46 (4) ◽  
pp. 153-160
Author(s):  
B. C. Anyaegbu ◽  
D. N. Onunkwo ◽  
G. Igwe ◽  
J. Nathaniel ◽  
C. M. Nkwo
Keyword(s):  
Energy Source ◽  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
The Body ◽  
Broiler Chicks ◽  
Feed Conversion

Considering the inherent attributes of tannia cocoyam (Xanthosoma sagitifolium) its appropriate utilization may enhance performance of starter broiler chicks. This study was therefore carried out to determine the dietary evaluation of starter broiler chicks fed cooked cocoyam tuber meal as energy source in place of maize. The cooked cocoyam tuber meal was used to replace maize at various levels of 25%, 50%, 75% and 100% respectively for diets 2, 3, 4 and 5 to determine the best replacement level that would give optimal performance in starter broiler chicks' diets. Result of the proximate composition of cooked cocoyam tuber meal showed that it contained 13.11% moisture, 2.60% ash, 1.85% ether extract, 3.90% crude protein, 9.45% crude fibre, 70.13% nitrogen free extract and 3004.37 Kcal/kgME. 150 day old Anak broiler chicks were used for the experiment. They were divided into 5 treatment groups of 30 broiler chicks each. Each treatment group was subdivided into 3 replicates of 10 broiler chicks each and kept in deep litter. Each starter diet was fed to a group of 30 starter broilers for 4 weeks using completely randomized design. They were given feed and water adlibitum. Parameters measured include initial body weight, final body weight, body weight gain, feed intake, feed conversion ratio and economics of production. In the starter broiler feeding trial, the starter broilers on 25% cooked cocoyam meal compared favourably with the control (P> 0.05) in terms of feed intake, body weight gain and feed conversion ratio and significantly (P > 0.05) performed between than those on 100% CCYM. The cost of production (N/Kg broiler) was however cheapest for diet 2 (25% CCYM) N395 versus control diet (N494.28). It was therefore concluded that cooked cocoyam tuber meal (Xanthosoma sagitifolium) could be used in the diets of starter broiler chicks' up to 25% without affecting the body weight gain, feed intake and feed conversion ratio as indicated in this study.

scholarly journals Effects of supplemental xylanase and xylooligosaccharides on production performance and gut health variables of broiler chickens

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Amit K. Singh ◽  
Birendra Mishra ◽  
Michael R. Bedford ◽  
Rajesh Jha
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Average Daily Gain ◽  
The Body ◽  
Production Performance ◽  
Gut Health ◽  
Final Body Weight ◽  
Total Period

Abstract Background This study evaluated the effects of supplemental xylanase and xylooligosaccharides (XOS) in a corn-soybean meal (SBM)-based diet on growth performance and intestinal health of broilers. A total of 288 day-old chicks (Cobb 500) were allocated to 36 floor pens (8 birds/pen) equally in 9 dietary treatments in a 3 × 3 factorial arrangement. The treatments were combinations of 3 levels of xylanase (0, 0.005% and 0.01% Econase XT) and 3 levels of prebiotics (0, 0.005% and 0.01% XOS) added to basal mash diets formulated in three phases (starter, d 0–14; grower, d 15–28; finisher, d 29–42). The feed intake and body weights were recorded weekly. On d 42, ileal sections were collected for histomorphometric and gene expression analysis, and cecal content was collected for determining short-chain fatty acids (SCFA) and microbiota. Results Xylanase linearly (P < 0.01) increased the average daily gain (ADG) in both the finisher and total period and the final body weight gain (FBWG, 2940 & 2932 vs. 2760 g) of broilers. XOS did not significantly increase either ADG or FBWG (P > 0.05). Supplemental xylanase and XOS did not affect average daily feed intake and feed conversion ratio (P > 0.05). Xylanase and XOS did not change villus height (VH) or crypt depth (CD) ratio (P > 0.05). However, xylanase exhibited a trend (P = 0.097) on VH:CD ratio. The inclusion of 0.01% XOS without xylanase increased the level of IL-10 (a marker of anti-inflammatory cytokine) and IL-4 (a T-cell differentiation cytokine) genes compared with control (P < 0.05). The acetate production was increased by xylanase (P < 0.01) and XOS (P < 0.05) without an additive effect. Xylanase increased total SCFA (P < 0.01) while XOS had a tendency to increase (P = 0.052). Alpha and beta diversity of microbiota among treatments were not different (P > 0.05). However, the mean proportion of family Ruminococcaceae was increased by the supplemental 0.01% xylanase (P < 0.01). Conclusion It can be concluded that XOS can enhance cecal fermentation, while xylanase can increase the body weight gain along with the fermentation metabolites in the ceca of broilers fed the corn-SBM-based diet but the effects may not always translate into an improved mucosal absorptive capacity and a better feed efficiency.

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