PSX-4 Performance of lambs born from ewes fed with different energy levels

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 468-469
Author(s):  
Luciano Brochine ◽  
Giuliana M Oliveira ◽  
Mayara S Pascotto ◽  
Mônica M Silva ◽  
Luisa Elena P Villa ◽  
...  
Keyword(s):  
Maternal Nutrition ◽  
Production Systems ◽  
Energy Content ◽  
Maternal Diet ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Lactation Period ◽  
Feed Conversion ◽  
Intact Male ◽  
Mean Values

Abstract The objective of this study was to evaluate the performance, under confinement conditions, of lambs born from ewes fed different energy levels during the final gestation and lactation period. Seventy-one ewes were distributed in two treatments according to the metabolizable energy (ME) levels in the diet: CTL = according to the NRC (2007) recommendations for each stage (gestation and lactation); PLUS = CTL plus 10% of energy per kilogram of dry matter. The total ME intake for the CTL group was 4 and 4.2 Mcal/day during the end of gestation and lactation, respectively, and for the Plus group, the ME intake were 4.8 and 5 Mcal/day. Thirty-five intact male lambs were weaned at 60 days and confined for an additional 60 days. In confinement, lambs were fed ad libitum with the same experimental diet their ewes received. The experimental design was analyzed as randomized complete blocks. The metabolic weight (BW0.75) at the confinement was influenced by maternal nutrition. Lambs of ewes fed with lower energy content were lighter compared to the PLUS group. At the beginning and the end of the confinement, the BW0.75 of the CTL was 8.80 and 15 kg0.75, and the PLUS was 11.4 and 17.6 kg0.75, respectively (P < 0.0001). The maternal diet containing higher energy content resulted in heavier carcass for commercialization. The values of weight gain and feed conversion were not influenced by maternal nutrition (P > 0.005), with mean values of 350 and 4.72 g/d, respectively. We concluded that lambs from ewes fed with greater energy intake had heavier body weights at the beginning and at the end of the confinement, possibly increasing the sustainability of the meat lamb production systems.

scholarly journals Metabolizable energy levels for meat quails from 15 to 35 days of age

2016 ◽  
Vol 46 (10) ◽  
pp. 1852-1857 ◽  
Author(s):  
Jorge Cunha Lima Muniz ◽  
Sérgio Luiz de Toledo Barreto ◽  
Raquel Mencalha ◽  
Gabriel da Silva Viana ◽  
Renata de Souza Reis ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Energy Content ◽  
Energy Levels ◽  
Carcass Traits ◽  
Metabolizable Energy ◽  
Experimental Unit ◽  
Feed Conversion ◽  
Protein Ratio ◽  
Metabolizable Energy Intake

ABSTRACT: This trial was carried out to evaluate the effects of dietetic metabolizable energy levels on performance and carcass traits of meat quails from 15 to 35 days old. Five hundred sixty, 15-d old, meat quails were randomly assigned to five treatments (2.850; 2.950; 3.050; 3.150 e 3.250kcal of ME kg-1 of diet), with eight replicates and fourteen birds per experimental unit. Feed intake, protein and lysine intake and feed conversion decreased linearly as the metabolizable energy content of diets increased (P<0.01), whereas metabolizable energy intake, body weight, weight gain and viability were not affected (P>0.05) by the treatments. Diets did not influence (P>0.05) carcass traits as dry matter, moisture and protein content in carcass. However a quadratic effect (P<0.04) were observed on carcass fat content. Based on these results, the adequate metabolizable energy level to ensure better meat quails' growth is 3.250kcal of ME kg-1 diet, that corresponds to a metabolizable energy: crude protein ratio of 139,24.

scholarly journals Metabolizable energy levels for semi-heavy laying hens at the second production cycle

2009 ◽  
Vol 38 (5) ◽  
pp. 857-862
Author(s):  
Fernando Guilherme Perazzo Costa ◽  
Janaine Sena da Costa ◽  
Cláudia de Castro Goulart ◽  
Denise Fontana Figueiredo-Lima ◽  
Raul da Cunha Lima Neto ◽  
...  
Keyword(s):  
Energy Level ◽  
Feed Intake ◽  
Egg Production ◽  
Laying Hens ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Production Cycle ◽  
Egg Mass ◽  
Feed Conversion

This study was carried out to evaluate the energy levels in the diet to obtain better performance rates and quality of eggs from laying hens in the second production cycle. One hundred and eighty Bovans Goldline laying hens with 62 weeks of age were used during four 28-day periods. A completely randomized experimental design was used with four metabolizable energy levels (2,650, 2,725, 2,800, 2,875 and 2,950 kcal/kg), each with six replicates of six birds. The energy level of diet did not affect the weight of the egg, yolk, albumen and eggshell, the percentages of yolk, albumen and eggshell, yolk color and egg specific gravity. Feed intake, egg production, egg mass and feed conversion per egg mass and per dozen eggs increased significantly with increasing levels of metabolizable energy. Feed intake decreased linearly as the energy level in the diet increased. The metabolizable energy levels showed a quadratic effect on egg production, egg mass and feed conversion per egg mass and per dozen eggs. The metabolizable energy level of 2,830 kcal/kg was the most appropriate to promote better performance and quality of eggs from laying hens in the second production cycle.

scholarly journals Effect of protein and energy levels in a constant ratio supplemented with methionine and lysine on performance of layers and on egg quality.

1980 ◽  
Vol 28 (1) ◽  
pp. 29-35
Author(s):  
A.R. El Boushy ◽  
L.G.M. van Gils ◽  
M.C. Papadopoulos
Keyword(s):  
Feed Intake ◽  
Crude Protein ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Energy Levels ◽  
Metabolizable Energy ◽  
Constant Ratio ◽  
Feed Conversion ◽  
Egg Weight

Twenty groups of 36 laying hens in individual cages were fed on one of 5 diets in which the energy:protein ratio was constant. Diets 1 to 5 had crude protein 12.0, 12.9, 14.0, 15.0 and 16.0% and metabolizable energy 8.71, 9.57, 10.27, 11.10 and 11.70 MJ/kg. From 24 to 64 weeks old, egg production of hens given diets 1 to 5 was 71.46, 71.31, 72.51, 71.13 and 69.99%, respectively. Corresponding values of mean egg weight, weekly feed intake and efficiency of feed conversion were 60.51, 60.47, 61.11, 61.02, 61.07 g; 157.16, 147.56, 142.03, 130.37, 126.72 g; 3.674, 3.460, 3.262, 3.031, 3.014 kg feed/kg egg, respectively. (Abstract retrieved from CAB Abstracts by CABI’s permission)

The utilization of the dietary energy of pangola and setaria by young growing beef cattle

1982 ◽  
Vol 98 (2) ◽  
pp. 395-404 ◽  
Author(s):  
G. D. Tudor ◽  
D. J. Minson
Keyword(s):  
Protein Content ◽  
Dry Matter ◽  
Production Systems ◽  
Energy Content ◽  
Live Weight ◽  
Initial Energy ◽  
Metabolizable Energy ◽  
Net Energy ◽  
Lower Efficiency ◽  
Tropical Grasses

SUMMARYThe net energy values for growth and fattening of two artificially dried tropical grasses-, pangola (Digitaria decumbens) and setaria (S. sphacelata var. sericea cv. Nandi), of similar estimated metabolizable energy content (8·07 and 7·96 MJ/kg D.M.) were determined with cattle using a slaughter technique. Growing cattle with a mean initial weight of 175 kg were given equal quantities of dry matter of the two grasses at each of three planes of nutrition above maintenance for a period of 152 days.The initial energy, fat and protein content of the total body of the 24 test animals was estimated from regressions relating fasted live weight to theśe components, derived from 12 similar cattle slaughtered at the beginning of the feeding period. The final energy, fat and protein content of the test animals was determined directly by chemical analysis. The metabolizable energy (ME) content of the grasses was estimated from the level of digestible energy (DE) determined with eight cattle, assuming that ME = 0·815 DE.The cattle fed pangola gained more live weight, empty-body weight, fat, protein and energy than animals fed similar quantities of setaria. The net energy value for growth and fattening (NEf) was determined using regressions relating energy retention to the quantity of dry matter eaten. NEf in MJ/kg dry matter was 2·27 for pangola and 1·31 for setaria.Efficiency of utilization of ME for growth and fattening (kf) was.27·7% for pangola and 16·9% for setaria. These values for tropical grasses are lower than any values reported for temperate pasture species. Thus the lower efficiency of utilization of ME may cause the lower production of cattle which graze tropical grasses.It was concluded that as the kf values of different tropical grasses are not constant, kf values should be measured on a wider range of tropical grasses so that this factor can be taken into account when evaluating grasses in animal production systems.

scholarly journals Effects of L-carnitine supplementation of diets differing in energy levels on performance, abdominal fat content, and yield and composition of edible meat of broilers

1998 ◽  
Vol 80 (4) ◽  
pp. 391-400 ◽  
Author(s):  
Mahmoud H. Rabie ◽  
Mihály Szilágyi
Keyword(s):  
Significant Interaction ◽  
Body Weight Gain ◽  
Energy Levels ◽  
Abdominal Fat ◽  
Metabolizable Energy ◽  
Dietary Energy ◽  
Carnitine Supplementation ◽  
Feed Conversion ◽  
Ad Libitum ◽  
Different Levels

Responses to supplemental dietaryl-carnitine of broilers fed on diets with different levels of metabolizable energy (ME) were investigated using growth performance and some carcass measurements. Three isonitrogenous diets containing 13.5, 12.8 or 12.2 MJ ME/kg were formulated, with or without supplementall-carnitine (50mg/kg) and fedad libitumfrom 18 to 53 d of age. Supplementall-carnitine increased body-weight gain (BWG) and improved feed conversion (FC) during the first 2 weeks of study. FC was also improved during the fourth week of the experiment. Weights of breast yield and thigh meat yield were significantly increased, whereas quantity and percentage of abdominal fat were reduced by supplementall-carnitine. A significant interaction between supplemental dietaryl-carnitine and dietary energy level was noted for BWG and FC during the second week of study.

Enzyme complex addition in barley or rye broiler diets with two energy levels fed from 1 to 21 days

2021 ◽  
pp. 1-11
Author(s):  
Caio Henrique Pereira de Souza ◽  
Márcia Izumi Sakamoto ◽  
Paulo Cesar Pozza ◽  
Tatiana Carlesso dos Santos ◽  
Humberto Marques Lipori ◽  
...  
Keyword(s):  
Energy Levels ◽  
Blood Parameters ◽  
Nutrient Digestibility ◽  
Metabolizable Energy ◽  
Control Treatment ◽  
Enzyme Complex ◽  
Feed Conversion ◽  
Randomized Design ◽  
Apparent Metabolizable Energy ◽  
Completely Randomized Design

Two experiments were conducted to evaluate diet digestibility, performance, digestive parameters, and blood parameters when an enzyme complex (EC) was used in barley- and rye-based diets with different energy levels. In the digestibility assay (exp. I), 108 seventeen-day-old Cobb male broilers were distributed in a completely randomized design in 2 × 2 × 2 + 1 factorial arrangement with two feeds (barley or rye), two EC levels (0% and 0.02%), and two energy levels [3025 and 3125 kcal apparent metabolizable energy (AME)·kg−1], plus a control treatment. In exp. II, 1080 one-day-old Cobb male broilers were distributed in a completely randomized design in 2 × 2 × 2 + 1 factorial arrangement with two feeds (barley or rye), two EC levels (0% and 0.02%), and two energy levels (2875 and 2975 kcal AME·kg−1). No interactions were observed for any variables (exp. I and II). Enzyme complex improved the apparent metabolizable coefficient of gross energy (P = 0.0432) of diets. The EC provided greater weight gain (P = 0.0003) and better feed conversion (P = 0.0025). Intestinal viscosity at 21 d was reduced (P < 0.0001) with the addition of the EC. The EC improved nutrient digestibility and performance, but the effects of energy reduction on performance could not be overcome.

EFFECT OF ALTERING THE SOURCE OF NONESSENTIAL NITROGEN ON PERFORMANCE AND CARCASS COMPOSITION OF THE BROILER CHICK

1986 ◽  
Vol 66 (4) ◽  
pp. 1097-1105
Author(s):  
M. R. BEDFORD ◽  
J. D. SUMMERS
Keyword(s):  
Amino Acids ◽  
Weight Gain ◽  
Conversion Efficiency ◽  
Energy Levels ◽  
Essential Amino Acids ◽  
Carcass Composition ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
Feed Conversion Efficiency ◽  
Excess Nitrogen

Male broilers were fed diets containing 14, 18 or 22% crude protein (CP) and 10.88, 12.13 or 13.39 MJ kg−1 metabolizable energy (ME) to 3 wk of age. For each level of CP and ME, three diets were formulated so that excess nitrogen arose mainly from nonessential amino acids (NEAA), essential amino acids (EAA) or both. The source of nitrogen excess had no effect on any of the parameters measured in birds fed the 18 and 22% CP diets. However, at 14% CP and over all energy levels, excess nitrogen in the form of EAA gave rise to superior results with regard to weight gain, feed conversion efficiency and carcass protein when compared to those diets where the excess nitrogen arose mainly from NEAA sources. Increasing dietary energy reduced the effect that source of nonessential nitrogen had on weight gain, feed conversion efficiency and carcass protein deposition at 14% CP. Key words: Amino acids, energy, protein, broilers

scholarly journals ENZYME COMPLEX SUPPLEMENTATION ON THE PERFORMANCE OF SWINE IN GROWTH AND FINISHING PHASES

2018 ◽  
Vol 31 (3) ◽  
pp. 748-758 ◽  
Author(s):  
NATÁLIA YOKO SITANAKA ◽  
FÁBIO ENRIQUE LEMOS BUDIÑO ◽  
SIMONE RAYMUNDO DE OLIVEIRA ◽  
ANDREIA DONIZETE CHAGAS VILAS BOAS ◽  
JOSÉ EVANDRO DE MORAES
Keyword(s):  
Energy Content ◽  
Block Design ◽  
Control Diet ◽  
Positive Control ◽  
Negative Control ◽  
Metabolizable Energy ◽  
Energy Reduction ◽  
Daily Weight Gain ◽  
Enzyme Complex ◽  
Feed Conversion

ABSTRACT The objective of this study was to evaluate the use of an enzyme complex-α-amylase, ß-glucanase, phytase, cellulase, xylanase and protease-in the feed of swine in growing and finishing phases, by assessing their performance (daily weight gain, daily feed intake, and feed conversion), dry matter, crude protein, and crude energy apparent digestibility, and the feed costs. Eighty pigs-castrated males, and females-of approximately 63 days of age and initial weight of 20.18±1.98 kg were distributed in a 5×2 factorial arrangement (diet × sex), in a randomized block design, with eight replications. The treatments used were: positive control diet consisted of 3,300 kcal/kg in the growth-I phase, and 3,250 kcal/kg in the growth-II and finishing phases; negative control diet with energy reduction of 85 kcal/kg of metabolizable energy (ME) (NC85); NC85 diet with addition of enzyme complex (EC85); negative control diet with energy reduction of 100 kcal/kg ME (NC100); NC100 diet with addition of enzyme complex (EC100). The addition of the enzyme complex to the diet with energy reduction of 100 kcal/kg ME increased the digestible protein content of the diet for the swine in the growth-II phase. The addition of the enzyme complex to the diet with energy reduction of 85 and 100 kcal/kg ME increased the digestible energy content of the diets for the swine in the finishing phase. The use of enzyme complex in diets with reduction of 85 kcal/kg ME for male swine in growing and finishing phases is recommended for improving feed conversion and economic efficiency during the growth-I phase. The use of enzyme complex is not justified for female swine.

The nutritional value for meat chickens of water-damaged wheat from temporary bulk stores in Queensland

1987 ◽  
Vol 38 (3) ◽  
pp. 621 ◽  
Author(s):  
PF Mannion ◽  
BJ Blaney ◽  
MS Levitt
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
Energy Content ◽  
Nutrient Composition ◽  
Metabolizable Energy ◽  
Feed Conversion ◽  
Progressive Reduction ◽  
Gross Energy ◽  
And Control

The nutritional value of water-damaged wheat and free-flowing wheat from temporary bulk stores at Goondiwindi was determined. Each was fed to meat chickens as the sole grain component or combined in several proportions, and compared with a control wheat in diets of similar nutrient composition. In addition, the nutrient composition of water-damaged and free-flowing wheat from temporary stores at Meeandarra, Thallon, Jandowae and Millmerran in southern Queensland was determined.A progressive reduction in the ratio of total amino acids to crude protein (0.98-0-70 w/w) and innitrogen-free extract (789-685 g kg-1 dry matter) was associated with increasing severity of water damage. Ether extract and gross energy contents of the dry matter were low in water-damaged wheat from all sites, but only the wheat with the most damage had a lower metabolizable energy content (12.99 versus 14.12 MJ kg-1) in the dry matter and as a proportion of gross energy (71% versus 76%) than free-flowing wheat from the same site.The three diets containing high levels of rotten (two diets) and severely water-damaged wheat (one diet) resulted in an average liveweight gain (26.1 g day-1) and feed conversion (1.86) which was poorer than that of the free-flowing wheat (28.1 g day-1, 1.59) and the average of other less water-damaged wheat treatments (29.7 g day-1, 1.57). The higher average liveweight gain of the latter treatments relative to the free-flowing wheat and control (27.3 g day-1) treatments was significant but was not reflected in better feed conversion. Possible reasons for these findings are discussed.

Influence of varied metabolizable energy levels on antioxidant status and performance of transition Murrah buffaloes

2017 ◽  
Author(s):  
Alkesh Chaudhari ◽  
Nitin Tyagi ◽  
Mayank Gautam ◽  
Jawid Sedeqi
Keyword(s):  
Antioxidant Status ◽  
Energy Content ◽  
Energy Levels ◽  
Dietary Treatment ◽  
Metabolizable Energy ◽  
Production Performance ◽  
Murrah Buffaloes ◽  
Before And After ◽  
Green Fodder ◽  
And Performance

Present experiment was conducted to study the effect of varied levels of metabolizable energy (ME) on performance and antioxidant status of Murrah buffaloes. Advance pregnant Murrah buffaloes (n=16) were randomly divided into three experimental groups i.e., 5, 5 and 6 animals in LME, MME and HME, respectively on the basis of most probable production ability (MPPA) and lactation number. They were fed graded levels of ME, namely low metabolizable energy (LME), medium metabolizable energy (MME), high metabolizable energy (HME) which is 85, 100 and 115 percent of ICAR, 2013 requirements for 130 days, duration i.e., 40 day prepartum to 90 days postpartum. Animals in group LME, MME and HME were offered concentrate with metabolizable energy content (MJ/kg DM) 11.80, 12.18, and 13.85, respectively. Green fodder (maize) and dry roughage (wheat straw) were fed as per the experimental protocol. No significant effect on dry matter intake (DMI), crude protein (CPI) and metabolizable protein (MPI) (% BW) were observed due to dietary variation in ME. ME intake (MJ/100 kg BW) before and after calving was statistical (P>0.05) higher in HME (15.01, 24.66) followed by MME (14.07, 22.11) and LME (12.33, 19.16) groups, respectively. Significant (P>0.05) higher milk yield efficiency (kg/kg DMI) and 6% FCM (kg/kg DMI) were observed in MME in comparison to HME group. The antioxidant profile revealed no significant influence of dietary treatment on superoxide dismutase (SOD) and ferric reducing activity of plasma (FRAP) whereas significant (P>0.05) lower level of antioxidant status i.e., glutathione peroxidase (GPx) (µmol/L) in HME (1834.60) than LME (2240.23) was observed. Considering optimum production performance and similar antioxidant activity among treatment groups, it can be concluded that ICAR, 2013 recommendations are suitable for feeding transition Murrah buffaloes.

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