Impact of wet feeding wheat-based diets with or without enzyme on broiler chick performance

2002 ◽  
Vol 82 (3) ◽  
pp. 409-417 ◽  
Author(s):  
T. A. Scott
Keyword(s):  
Durum Wheat ◽  
Propionic Acid ◽  
Feed Intake ◽  
Daily Intake ◽  
Wheat Cultivars ◽  
Feed Conversion ◽  
Key Words Wheat ◽  
Voluntary Feed Intake ◽  
Enzyme Supplementation ◽  
Digesta Viscosity

Two studies were conducted to determine the effect of wheat source on voluntary feed intake when diets were offered in a wet or dry form. The first experiment was designed to establish if a mould inhibitor was necessary. The second experiment allowed more extensive screening of wheat types to determine if there is a genetic component in wheat that explains the differences observed in exp. 1. Experiment 1 was based on two wheat cultivars [Hard Red Spring (HRS) and Durum]. Each wheat was ground, one portion was used as is, the other pelleted and re-ground. The four wheat sources were included at 80% of a standard bioassay diet (with enzyme) and each diet was fed with or without propionic acid. The eight diets were fed ad libitum as is or with 1.2 g water per gram of feed. The wet diets were prepared daily and all diets were fed to four groups of six male broilers from 1 to 17 d of age. The second experiment utilized three cultivars each of HRS and Durum wheat fed in similar bioassay diets with no pre-pelleting or added mould inhibitor; each diet was fed with or without enzyme. Each of the 12 diets in the second experiment was fed with and without 1.2 g water per gram of feed to six groups of eight male broilers from 1 to 21 d of age. For both experiments, the daily intake of feed, on an air-dried basis, was detennined for each diet and used to calculate feed conversion for the respective feeding periods. Experiment 1 showed no effect of supplementing the wheat-based diets with propionic acid. This same experiment also clearly showed that feed intake was increased with wet feeding and there were significantly greater effects when HRS as compared to Durum wheat was fed. Experiment 2 clearly established that there are distinct differences in voluntary feed intake with wet feeding utilizing HRS as compared to Durum wheat. This experiment indicated that wet feeding mimics enzyme supplementation with regard to lowering digesta viscosity, but it is clearly unique from enzyme supplementation with its large effect on feed intake and growth. These studies support our hypothesis that variability in hydration rate of cereal-based diets may limit intake. Key words: Wheat, wet feeding, enzymes, feed intake, broilers

Effects of wet feeding and enzyme supplementation on nutritional value of wheat screenings for broiler chickens

2017 ◽  
Vol 57 (9) ◽  
pp. 1906
Author(s):  
Ghorbanali Sadeghi ◽  
Ahmad Karimi ◽  
Soosan Mohammadi ◽  
Asaad Vaziry ◽  
Mahmood Habibian
Keyword(s):  
Feed Intake ◽  
Broiler Chickens ◽  
Nutritional Value ◽  
Bodyweight Gain ◽  
Broiler Chicks ◽  
Feed Conversion ◽  
Entire Study ◽  
Crypt Depth ◽  
Enzyme Supplementation ◽  
Digesta Viscosity

The effects of wet feeding and a multi-enzyme preparation on the nutritional value of wheat screenings (WS) for broiler chicks were investigated. In total, 540 1-day-old Ross-308 broiler chicks were fed a corn–soybean meal-based diet up to 29 days of age. At that time, the birds were randomly assigned to nine diets in a completely randomised design with a 3 × 3 factorial arrangement, including three levels of WS (0%, 25% and 50%, WS0, WS25 and WS50 respectively) and three processing methods (no processing, enzyme supplementation and wet feeding). The enzyme mixture contained endo-1, 4-β-xylanase (200 FXU/g), endo-1, 4-β-glucanase (50 FBG/g), endo-1, 8-β-glucanase (21 FBG/g), hemicellulase (3000 VHCU/g), α-galactosidase (3 GALU/g) and protease (260 U/g) and was supplemented at a level of 6 g/kg of diet. The inclusion of water in wet diets was in the extent of 1.2 kg/kg of diet. During the period from 29 to 49 days of age, feed intake was not affected (P > 0.05) by the inclusion of WS in the diet, whereas chicks fed the WS25 diet had a higher (P < 0.05) bodyweight gain than did those on WS0 diet. The feed conversion ratio (FCR) was improved (P < 0.05) by the inclusion of WS in the diet throughout the study. The feed intake was increased (P < 0.05) by enzyme supplementation to WS50 diet, while bodyweight gain was increased (P < 0.05) by wet feeding. Enzyme supplementation did not affect (P > 0.05) FCR, whereas wet feeding resulted in lower (P < 0.05) FCR over the entire study. The plasma concentration of glucose was increased (P < 0.05) by the inclusion of WS in the diet. The viscosity of the ileal digesta was higher (P < 0.05) in chicks receiving the WS50 diet than that in chicks receiving the other diets. The jejunal villus height was increased (P < 0.05) and the jejunal crypt depth was decreased (P < 0.05) by the inclusion of WS in diet. The jejunal crypt depth was greater (P < 0.05) in chicks receiving the wet diets than in chicks receiving the enzyme-supplemented diets (P > 0.05). In conclusion, the results from the present study indicated that broiler growth performance was improved by the inclusion of WS in the diet and also by wet feeding. These effects were largely compatible with the changes that occurred in the small intestine morphology, but not with those observed for ileal digesta viscosity.

scholarly journals Defining the effects of wheat type, water inclusion level, and wet-diet restriction on variability in performance of broilers fed wheat-based diets with added water

2003 ◽  
Vol 83 (2) ◽  
pp. 265-272 ◽  
Author(s):  
T. A. Scott ◽  
F. G. Silversides
Keyword(s):  
Durum Wheat ◽  
Feed Intake ◽  
Feed Conversion ◽  
Key Words Wheat ◽  
Energy Retention ◽  
Added Water ◽  
Inclusion Level ◽  
Metabolisable Energy ◽  
Type Water ◽  
Dietary Treatments

The objectives of the study were to determine if feed conversion ratio (FCR) in broilers fed wet Hard Red Spring (HRS) as compared to Durum-based wheat diets could be reduced by: (a) diluting HRS with Durum wheat, (b) pelleting of the wheat, (c) adding different levels of water to the diet, or (d) restricting intake of diets to which water was added. Three wheat types [Durum, HRS and a Composite (50:50) sample] were ground, with one portion of the ground grain being pelleted and reground before both forms of each wheat type were included at 80% of a basal broiler diet. All diets were supplemented with a commercial wheat enzyme and fed as a mash. Each of the six diets was fed in one of four feed regimens: DRY (as is); WET1.2 (DRY with 1.2 g water g-1 feed); WET0.6 (DRY with 0.6 g water g-1 feed); and RWET1.2 [WET1.2 diet treatment restricted-fed to 120% of the previous day’s DRY feed intake (on an air-dried basis) for each diet type]. This provided 24 dietary treatments each fed to six cages of five male broilers from 1 to 21 d of age. The wet diets were prepared daily. Among the feed regimens WET1.2 resulted in the significantly highest 21-d body weight. The significant increase in feed intake and FCR of HRS-based diets with added water was reduced significantly by diluting this wheat with Durum wheat. Feeding the unpelleted Composite wheat sample significantly improved growth rate over either wheat alone, presumably due to an improved balance of nutrients. Pelleting significantly reduced intake of wet HRS-based diets and increased apparent metabolisable energy (AME), resulting in a marked reduction in FCR compared to unpelleted diets. There was some value in using less water in HRS-based, but not in Durum-based diets, with respect to FCR and metabolisable energy retention. Physical restrictions of feed intake reduced FCR of wet (WET1.2) unpelleted HRS diets, but did not affect the same diet when wheat was pelleted. Further work is required to establish the optimum consistency of feed in a wet form to maximize feed intake and growth while minimizing FCR. Key words: Wheat, wet feeding, enzymes, feed intake, broilers

Effect of feed processing and enzyme supplementation on diet digestibility and performance of male weaner pigs fed wheat-based diets in dry or liquid form

2013 ◽  
Vol 53 (6) ◽  
pp. 531 ◽  
Author(s):  
Katie A. l'Anson ◽  
Mingan Choct ◽  
Peter H. Brooks
Keyword(s):  
Feed Intake ◽  
Daily Intake ◽  
Basal Diet ◽  
Feed Conversion ◽  
Liquid Form ◽  
Large White ◽  
Feed Processing ◽  
Enzyme Supplementation ◽  
Daily Gain ◽  
Weaner Pigs

One hundred and forty-four individually housed, entire male (Large White × Landrace) weaner pigs (28 days; 7.3 s.d. 0.1 kg) were individually housed and allocated to a 26-day feeding trial of 2 by 2 by 3 factorial design. The factors were (1) feed processing method (meal or steam pelleted), (2) feed form (dry or liquid), and (3) enzyme addition (basal diet, or basal diet plus 300 ppm xylanase or 100 ppm phytase). Five days post weaning, two pigs were removed from each treatment. The basal diet was formulated to be marginally adequate for pigs of this age, providing 13.8 MJ digestible energy (DE)/kg DM and 0.79 g available lysine/MJ DE. The diet contained 0.81% Ca, 0.44% non-phytate-P and 0.31% phytate-P. Compared with pigs fed dry diets, pigs fed liquid diets consumed less feed (70 ± 14.2 g/day; P < 0.05) had a lower daily gain (49 ± 12.5 g/day; P < 0.05) and as a consequence had a lower 26-day weight (1.1 ± 0.4 kg; P < 0.05). However, pigs fed liquid diets had a better feed conversion efficiency (adjusted to the same DM content as dry feed) than pigs on dry diets (1.16 versus 1.20 ± 0.02; P < 0.05). Steam pelleting the diets had no effect on feed intake or daily gain, but did improve feed conversion ratio (1.14 versus 1.22 ± 0.02; P < 0.05). The poorer growth on liquid feeds appeared to result from the feeding method imposing a degree of restriction on feed intake. Xylanase or phytase supplementation did not significantly affect non-starch polysaccharide levels in the diets or growth performance. Phytase supplementation increased (P < 0.05) daily intake, daily gain and 26-day weight, of pigs fed dry diets, but not those fed liquid diets. The results indicated that when diets were fed in liquid form, prior steam pelleting of the diets and enzyme supplementation did not provide additional benefit.

Interactions between weaning age, weaning weight, sex, and enzyme supplementation on growth performance of pigs

2002 ◽  
Vol 53 (8) ◽  
pp. 939 ◽  
Author(s):  
F. R. Dunshea ◽  
D. K. Kerton ◽  
P. D. Cranwell ◽  
R. G. Campbell ◽  
B. P. Mullan ◽  
...  
Keyword(s):  
Feed Intake ◽  
Feed Conversion ◽  
Large White ◽  
Weaning Weight ◽  
Exogenous Enzyme ◽  
The Third ◽  
Main Effect ◽  
Weaning Age ◽  
Enzyme Supplementation ◽  
Daily Gain

Digestive capacity of early-weaned pigs may be insufficient to fully digest many ingredients currently used in weaner diets. The aim of this experiment was to determine whether an exogenous enzyme preparation with broad carbohydrase activity could benefit pigs that developmentally might be immature at weaning, especially with regard to gastrointestinal development. Eighty Large White × Landrace pigs were used in a 2 × 2 × 2 × 2 factorial experiment with the factors being: weaning age (14 or 24 days), weaning weight (heavy or light), sex (boar or gilt), and dietary Biofeed Plus CT (0 or 500 μg/g) which contained fungal xylanases, pentosanases and β-glucanases. Pigs were housed individually and given a wheat-based (550 g/kg) diet containing 15.0 MJ DE and 15.9 g lysine/kg on an ad libitum basis for 21 days. The diet also contained 50 g/kg of soybean meal and 50 g/kg of lupin (Lupinus�angustifolius) kernels. The liveweights of heavy (H) pigs weaned at 24 or 14 days and light pigs (L) weaned at 24 or 14 days were 7.9 and 5.3 and 5.2 and 3.9 kg, respectively. Pigs weaned at 14 days grew slower (157 v. 345 g/day) than those weaned at 24 days, although there was a suggestion of an interaction between age and weight at weaning (P = 0.081). Thus, H and L pigs weaned at 14 days grew at 148 and 166 g/day, whereas H and L pigs weaned at 24 days grew at 374 and 315 g/day, respectively. Although there was no main effect of enzymes on daily gain (248 v. 254 g/day, P = 0.80), feed intake (278 v. 284 g/day, P = 0.79), or feed conversion ratio (1.19 v. 1.25, P�=�0.35), there were interactions with weaning age on daily gain (P = 0.050) and feed intake (P = 0.060). Pigs weaned at 14 days grew slower (176 v. 138 g/day) and ate less (206 v. 174 g/day), whereas pigs weaned at 24 days grew faster (321 v. 369 g/day) and ate more (351 v. 394 g/day), when supplemented with enzymes. During the third week after weaning there were interactions between dietary enzymes and sex (P = 0.060) and dietary enzymes and age (P = 0.023) on daily gain. Thus, pigs weaned at 24 days and supplemented with Biofeed Plus CT grew more quickly during the third week (559 v. 460 g/day), whereas the converse was true for pigs weaned at 14 days (286 v. 334 g/day). Also, enzyme-supplemented boars grew better over this period (457 v. 371 g/day), whereas the converse was true for gilts (388 v. 423 g/day). In conclusion, these data clearly indicate that the greatest determinant of post-weaning performance under the present conditions was the age of the pigs at weaning. Dietary enzyme supplementation appeared most efficacious in boars weaned at an older age, although benefits did not become apparent until 2 weeks after weaning.

scholarly journals Whole-grain cereal voluntary intake and preference in Japanese quail (Coturnix coturnix japonica)

2019 ◽  
Vol 17 (2) ◽  
pp. e0603
Author(s):  
Pedro González-Redondo ◽  
Francisco P. Caravaca ◽  
Alberto García-Ávarez ◽  
Fernando Martínez-Moreno
Keyword(s):  
Durum Wheat ◽  
Bread Wheat ◽  
Feed Intake ◽  
Live Weight ◽  
Coturnix Japonica ◽  
Whole Grain ◽  
Coturnix Coturnix ◽  
Voluntary Feed Intake ◽  
Voluntary Intake ◽  
Positive Correlations

Japanese quail (Coturnix coturnix japonica) usually fed on ground or pelleted balanced feeds, while whole grains are supplied in alternative systems. Voluntary intake and preference of four whole-grain cereals (durum wheat, bread wheat, triticale and barley) were assessed in Japanese quails. Two experiments were performed: (i) a trial with five batches of six randomly selected quails (three males, three females) allocated to each treatment consisting of one cereal or a balanced feed (control) in the voluntary intake experiment; and (ii) a trial with four bird batches receiving simultaneously the four cereals in the preference experiment. Three repetitions of each trial were performed. When feedstuffs were provided as a sole feed, voluntary feed intake differed, being the highest in quails fed the balanced feed (20.0 g/d), intermediate for durum wheat (15.0 g/d), bread wheat (15.8 g/d) or triticale (15.6 g/d), and the lowest for barley (12.1 g/d). Voluntary intake did not differ between sexes. Positive correlations existed between voluntary feed intake and live weight of quails, being the highest and very strong for the balanced feed, moderate for durum and bread wheat and barley, and weak for triticale. The preference trial showed that quails preferred durum wheat (7.1 g/d), triticale (4.0 g/d), bread wheat (3.0 g/d) and barley (0.3 g/d) in descending order, independently of sex. Positive correlations existed between daily feed intake and live weight of birds for durum and bread wheat. Strong positive correlation existed between bird live weight and total intake when the four cereals were available simultaneously. Differences in voluntary intake and preference among whole-grain cereals should be take into account when used to feed quails.

Influence of high calcium rearing diets, Christmas Island phosphate and ethylenediamine-tetraacetic acid on the laying performance of White Leghorn × Australorp hens

1977 ◽  
Vol 17 (89) ◽  
pp. 944
Author(s):  
H Karunajeewa
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Daily Intake ◽  
White Leghorn ◽  
Feed Conversion ◽  
Shell Quality ◽  
Christmas Island ◽  
Laying Performance ◽  
High Calcium ◽  
Reduced Rate

White Leghorn x Australorp pullets were reared on diets with either low (0.91-1.12 per cent) or high (1.45-1.93 per cent) levels of calcium; in the laying phase pullets from each rearing regime were fed diets with either sterilized bone meal or Christmas Island phosphate as sources of supplemental phosphorus. Each of these layer diets was supplemented with 0, 300 or 500 p.p.m. of EDTA. The level of calcium in the rearing diets had no significant effect on liveweight, feed intake or mortality of the pullets during either the rearing or laying phases. High calcium starter and grower diets, however, reduced rate of lay by 2.1 per cent (P < 0.05) and efficiency of feed conversion by 3.7 per cent (P < 0.01). There was also a non-significant tendency to lower shell thickness. The inclusion of 2.5 per cent Christmas Island phosphate in the laying diet, resulting in a daily intake of 46 mg of fluorine per hen, decreased rate of lay by 2.2 per cent (P < 0.05), hen-housed egg production by 11 eggs (P < 0.05) and efficiency of feed conversion by 5.0 per cent (P < 0.01). The addition of 300 p.p.m. EDTA to the laying diet significantly (P < 0.01) improved efficiency of feed conversion by 4.7 per cent. Neither the source of phosphorus nor the dietary level of EDTA had any significant effects on liveweight, egg weight, feed intake, shell quality or mortality.

scholarly journals Utilization of parboiled rice polish based diet with supplementation of phytase and carbohydrase in growing ducklings

2012 ◽  
Vol 10 (1) ◽  
pp. 101-106
Author(s):  
B Naher ◽  
M Y Miah ◽  
M M Roahman ◽  
M A Wahid
Keyword(s):  
Feed Intake ◽  
Live Weight ◽  
Feed Conversion ◽  
Improve Performance ◽  
Parboiled Rice ◽  
Ad Libitum ◽  
Enzyme Supplementation ◽  
Two Stages ◽  
Rate Of Improvement

A total of 60 day old straight run pekin ducklings were fed ad libitum on 6 diets viz, D1- 15% parboiled rice polish (PRP) based diet, D2- D1 + Mixed enzyme (Carbohydrase 120 ppm/kg + phytase 1000FYT/kg), D3- 25% parboiled rice polish (PRP) based diet, D4 - D3 + Mixed enzyme ( Carbohydrase 120 ppm/kg + phytase 1000FYT/kg), D5-35%   parboiled rice polish (PRP) based diet, D6 - D5+ Mixed enzyme ( Carbohydrase 120 ppm/kg + phytase 1000FYT/kg)  for 84 days. Diets were supplied two stages containing 22.5, 22.5, 22.8% CP for starter and 16.4, 16.9, 17% CP for finisher. Increasing PRP levels without enzyme decreased live weight, feed intake and feed conversion but increase  profitability without affecting livability. Addition of mixed enzyme promoted growth, feed conversion significantly  (P<0.01), but did not alter livability. The rate of improvement in performance for enzyme supplementation increased  with increasing level of dietary PRP. Therefore, it was concluded that it is possible to reduce costly grain by using PRP in duck ration and supplementation of phytase and carbohydrase in PRP diet may be beneficial to improve performance of ducks.   DOI: http://dx.doi.org/10.3329/jbau.v10i1.12100   J. Bangladesh Agril. Univ. 10(1): 101–106, 2012    

scholarly journals Lack of response to garlic fed at different dose rates for the control of Haemonchus contortus in Merino wether lambs

2009 ◽  
Vol 49 (12) ◽  
pp. 1093 ◽  
Author(s):  
V. J. Strickland ◽  
J. S. Fisher ◽  
W. T. Potts ◽  
G. W. Hepworth
Keyword(s):  
Feed Intake ◽  
Haemonchus Contortus ◽  
Body Condition Score ◽  
Control Group ◽  
Feed Conversion ◽  
Worm Count ◽  
Treatment Groups ◽  
Dose Rates ◽  
Voluntary Feed Intake ◽  
Over Time

With the increased incidence of parasite resistance to chemical anthelmintics worldwide novel approaches to manage parasite infection, such as medicinal plants and their extracts, are being investigated by the scientific community. The current study tested the effect of three rates of garlic (0.9, 1.8 and 3.6%) in a pelleted ration on Haemonchus contortus in sheep. Thirty-nine Merino wether lambs aged 6 months were divided into five treatment groups, including three garlic dose rates and two control groups that received no garlic. All animals were infected with 4000 L3 H. contortus larvae 3 weeks after allocation to treatments. A positive control group was drenched with abamectin 28 days after infection. The synthetic drench was effective in controlling the parasites, but there was no reduction in either worm egg counts (WEC) or total worm count due to the garlic. The 3.6% garlic treatment had significantly lower (P < 0.05) liveweight, feed intake, body condition score and feed conversion ratio than any of the other treatment groups, suggesting that this level of garlic had a low level of anti-nutritional properties. There was an interaction between faecal WEC and voluntary feed intake over time, with the animals with higher voluntary feed intake having lower WEC over time.

scholarly journals Digestible lysine requirement for European laying quail

2019 ◽  
Vol 42 ◽  
pp. e46070
Author(s):  
Teófilo Izidio de Morais Severo ◽  
Marco Aurélio Carneiro de Holanda ◽  
Mônica Calixto Ribeiro de Holanda ◽  
Leandro Ricardo Rodrigues de Lucena ◽  
Wilson Moreira Dutra Junior
Keyword(s):  
Feed Intake ◽  
Daily Intake ◽  
Productive Performance ◽  
Feed Conversion ◽  
Coturnix Coturnix ◽  
Linear Behavior ◽  
Randomized Design ◽  
Inclusion Level ◽  
Completely Randomized Design ◽  
Different Levels

The experiment was carried out to evaluate the productive performance of European quails (Coturnix coturnix) in the production phase, fed with diets containing different levels of digestible lysine. A total of 175 female quails, aged 65 days, were randomly distributed in a completely randomized design with five treatments and five replicates per treatment. The animals were housed in 25 metal cages, and each cage represented an experimental parcel, with seven birds per parcel. The birds were fed the experimental rations containing 1.177, 1.217, 1.317, 1.417, and 1.517% digestible lysine. The parameters evaluated were: laying rate, mass of eggs produced, feed intake in the period, lysine intake, feed conversion per dozen and per mass. Significant differences were observed for posture rate with quadratic behavior, which indicated higher production for the level of 1.23% of digestible lysine. There was an increasing linear behavior for the feed and lysine intake, and for conversion feed per dozen and by mass, we observed quadratic behaviors. This indicates better feed conversion index when the optimal inclusion level was 1.33% and 1.404% of digestible lysine in the diet, respectively. The requirement of digestible lysine in diets for European quails is 1.404%, which corresponds to a daily intake of 421.20 milligrams of digestible lysine.

scholarly journals Evaluation of Copra Meal (CM) in Corn-Animal Protein Meal-Based Diets and Enzyme on Broiler Performance

Proceedings ◽  
2020 ◽  
Vol 36 (1) ◽  
pp. 198
Author(s):  
Ashika Devi ◽  
Siaka Diarra
Keyword(s):  
Fatty Acid ◽  
Feed Intake ◽  
Growth Parameters ◽  
Saturated Fatty Acids ◽  
Animal Protein ◽  
Feed Conversion ◽  
Crude Fibre ◽  
Broiler Meat ◽  
Enzyme Supplementation ◽  
Fat Digestibility

The effects of increasing CM level in corn-animal protein-based diets and enzyme supplementation in broilers was investigated in a 30-day experiment. A total of 168, one-week old Cobb broilers were assigned to 8 diets consisting of 2 controls (with and without enzyme) and 6 other diets with 15, 30 and 45% CM levels with and without enzyme in a completely randomized design. Results showed significant interactions effects on growth parameters, fat digestibility, White Blood Cell (WBC) count, Saturated Fatty Acids (SFA) and Mono Unsaturated Fatty Acid (MUFA) (P < 0.05). Feed intake and WG were reduced on 30 and 45% diets (P < 0.05). Fat digestibility was improved on control and 30% CM diets with enzyme (P < 0.05). Higher WBC counts were recorded in control and 15% CM with enzyme (P < 0.05). Higher SFA and lower MUFA were on 15 and 45% diets (P < 0.05). In the main effects, feed intake and weight gain (WG) were reduced and feed conversion ratio (FCR) increased with increasing level of CM above 15% (P < 0.05). The diet with 45% CM showed lower SFA (P < 0.05) compared to 15% CM diet, MUFA and PUFA reduced with increasing CM levels (P < 0.05). Enzyme supplementation reduced SFA and MUFA content (P > 0.05) but improved crude fibre and fat digestibility of broilers (P < 0.05). In conclusion, 30% dietary CM inclusion is detrimental in terms of WG but has no effect on the fatty acid composition of broiler meat. More research into enzyme source and concentration above 30% CM is recommended.

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