Effect of methionine and lysine supplementation of diets for laying hens, on production and feed intake

1976 ◽  
Vol 27 (5) ◽  
pp. 739 ◽  
Author(s):  
MW McDonald ◽  
IJ Bruce
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Egg Production ◽  
Function Analysis ◽  
Basal Diet ◽  
Metabolizable Energy ◽  
Feed Consumption ◽  
Multiple Regression Equation ◽  
Weight Changes ◽  
Egg Weight

Six diets containing five levels of methionine and two of lysme were each fed to 12 Leghorn and 12 Australorp pullets for a period of 16 weeks Body weight changes, egg production, egg weight and feed intake were measured Although responses to the diets did not differ significantly In univariate analyses, multrvarrate analysis lndicated a srgnificant interaction between breeds and diets. Increased methionine produced small, significant Increases In egg weight, although responses were inconsistent at different levels Body weight gains were not significantly different between diets. Egg production and feed consumption were significantly affected by diet?, but the pattern of response was also inconsistent. A discriminate function analysis showed a consistent response to increased methionine, which indicated that the basal diet was deficient and that the pullets required a total of 0 275% methionine in their diet Lysine supplementation produced a 'significant decrease In feed intake but had no significant effect on any other variable.A multiple regression equation relating metabolizable energy intake to the variables measured in the experiment was calculated and compared with others reported In the literature This was used to predict the requirements of the pullets for a number of essential amino acids.

scholarly journals Effect Of Supplementation Of Organic Acids On Laying Performance, Body Fatness And Egg Quality Of Hens

1970 ◽  
Vol 37 (2) ◽  
pp. 74-81 ◽  
Author(s):  
MS Rahman ◽  
MAR Howlider ◽  
M Mahiuddin ◽  
MM Rahman
Keyword(s):  
Body Weight ◽  
Organic Acids ◽  
Organic Acid ◽  
Feed Intake ◽  
Egg Production ◽  
Laying Hens ◽  
Egg Quality ◽  
Basal Diet ◽  
Feed Conversion ◽  
Egg Weight

The study was conducted to determine the effect of organic acids supplementation on body weight changes, feed intake, feed efficiency, egg production, egg weight and egg quality in laying hens at age between 67 and 74 weeks. A total of 48 Shaver 579 laying hens of 67 weeks age were allotted into 4 groups, each containing 12 hens. The hens were fed basal diet (17% CP and 2800 kcal ME/kg diet) supplemented with 0 (T1), 260 (T2), 520 (T3) and 780 ppm (T4) of organic acid mixture (fumaric acid and salt of butyric, propionic and lactic acids). The results revealed no effect of organic acids supplementation on body weight change and feed intake but improvement of egg production and feed conversion were observed. Organic acids supplementation significantly increased egg production by about 2.26, 8.0 and 9.84% on 260, 520 and 780 ppm respectively when compared with the untreated group (P<0.05). Feed conversion showed a significant (P<0.05) improvement in laying hen groups which fed on the basal diet supplemented with organic acids at 260, 520 and 780 ppm by about 1.85, 8.48 and 7.74% respectively when compared with the control. On the other hand, dietary organic acid had no effect on the average egg weight, while showed a lower percentage of large (P<0.05) and extra large egg (P<0.01) size compared with control group. Body composition parameters were not affected (P>0.05) by dietary treatments. Inclusion of organic acids improved egg shell thickness (P<0.05) while significantly reduced albumen index (P<0.05). Incorporation of organic acids attributed to significant increase per cent albumen (P<0.01) and significant decrease in yolk per cent (P<0.05). It can be concluded that organic acid supplementation of laying hens diet may improve persistency of lay and feed conversion. From economical point of view, it is concluded that organic acid addition (520 ppm) may result an economic benefit of layer production at older age. DOI: http://dx.doi.org/10.3329/bjas.v37i2.9884 BJAS 2008; 37(2): 74-81

Beneficial effects of dietary ascorbic acid supplement on hens subjected to ochratoxin A toxicosis under normal and high ambient temperatures

1993 ◽  
Vol 73 (1) ◽  
pp. 149-157 ◽  
Author(s):  
F. M. Haazele ◽  
W. Guenter ◽  
R. R. Marquardt ◽  
A. A. Frohlich
Keyword(s):  
Ascorbic Acid ◽  
Body Weight ◽  
Ochratoxin A ◽  
Feed Intake ◽  
Egg Production ◽  
Laying Hens ◽  
Control Diet ◽  
Basal Diet ◽  
Weight Changes ◽  
Negative Effects

Three experiments were conducted to study ochratoxin A (OA) toxicity and the effect of supplemental ascorbic acid (AA) in laying hens housed under two environmental temperatures. In exp. 1, 18 hens were divided into three groups of six hens and fed diets containing either 0, 1.7, or 3.1 ppm OA for 14 d. In exps. 2 and 3, 24 hens were randomly assigned to four dietary treatments in six replications. Treatments consisted of a control and three diets containing either 300 ppm AA, 3 ppm OA, or 300 ppm AA plus 3 ppm OA. Treatment diets were fed for 14 d following the feeding of the basal diet for 14 d. The test-period temperature was 25 °C in exp. 1 and 2 and 33 °C in exp. 3. In exp. 1, feeding OA at 1.7 ppm significantly (P ≤ 0.05) decreased feed intake and increased liver weights and eggshell elasticity. At 3 ppm, OA significantly (P ≤ 0.05) reduced feed intake, body-weight change and egg production, and increased shell elasticity. Similar trends were also observed in exps. 2 and 3 when laying hens were fed 3 ppm OA compared with those fed the control diet. An analysis of plasma constituents showed that OA also increased Cl− concentration and aspartate transaminase activity and decreased plasma Ca++ concentrations. Exposing hens to 33 °C (compared with 25 °C) appeared to aggravate the negative effects of OA. All the negative effects of OA, apart from body-weight changes, reductions in feed intake, and increases in eggshell elasticity at 33 °C, were either moderated or significantly (P ≤ 0.05) reversed by dietary AA supplementation. The results suggest that some of the detrimental effects of OA in the diet of the laying hen can be counteracted by dietary supplementation of AA. Key words: Ochratoxin A, toxicity, ascorbic acid, hen, temperature

scholarly journals Effect of Herbal Liver Stimulants on the Performance of Hy-line Commercial Layer

1970 ◽  
Vol 9 ◽  
pp. 37-40
Author(s):  
Damodar Neupane ◽  
Mukesh Karki ◽  
C. R. Upreti ◽  
Tribhuveneshor Dhaubhadel
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Daily Intake ◽  
Basal Diet ◽  
Feed Consumption ◽  
Herbal Products ◽  
Dietary Treatments ◽  
Additional Income ◽  
Calculated Average ◽  
Observation Period

An investigation was undertaken on 180 day-old Hy-line layer chicks to assess the effect of herbal products on feed consumption, egg production and profitability. The experimental chicks were randomly divided in three groups with three replicates in each and were housed in identical management and environmental conditions. Dietary treatments were prepared by addition of herbal liver stimulants such as Livoliv 250 @500 g/ton (D2) and Superliv @500g/ton (D3) in the basal diet (D1). Feed intake, egg production and mortality were recorded throughout the observation period of 50 weeks. Feed per unit of egg production, hen day percentage, additional income of supplemented diet over the basal diet were calculated. Average daily intake (g) of the diets per bird were observed as 59.19±1.05 g, 58.31±0.337 g and 57.67±0.163 g up to 20 weeks and 108.94±0.06 g, 109.01±0.05 g and 108.26±0.41 g during the laying period fed with D3, D1 and D2 diets respectively. Similarly, higher hen day egg % (76.9%) was recorded in the birds fed with Superliv supplemented diet (D3), followed by Livoliv supplemented diet (D2) (73.4%) and Basal diet (D1) (72.1%) with feed intake per unit egg production of 179.3 g, 178.1 g and 193.0 g, respectively. Total egg production was found higher with D3 (161.49 egg), followed by D2 (154.15 egg) and basal diet (151.45 egg) with layer house cumulative mortality only in D3 (3.75%). Additional profits of Rs. 35.18 and Rs. 12.86 in terms of egg selling over feed cost per layer were calculated for the bird fed with Superliv supplemented diet (D3) and Liveloliv supplemented diet (D2) than that of the basal diet. Key words: layer; herbal products; liver stimulant; feed efficiency; profit DOI: 10.3126/njst.v9i0.3162 Nepal Journal of Science and Technology 9 (2008) 37-40

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)

Navy beans (Phaseolus vulgaris) as a protein source in layer diets

1971 ◽  
Vol 11 (51) ◽  
pp. 387 ◽  
Author(s):  
JK Connor ◽  
AR Neill ◽  
HW Burton
Keyword(s):  
Body Weight ◽  
Phaseolus Vulgaris ◽  
Egg Production ◽  
Body Weight Gain ◽  
Metabolizable Energy ◽  
Feed Consumption ◽  
Egg Mass ◽  
Navy Bean ◽  
Bean Meal ◽  
Methionine Supplementation

The effects of raw versus steamed navy bean (Phaseolus vulgaris) meal, in diets with and without methionine supplementation, on egg production, egg weight, body weight, pancreas weight, mortality, feed consumption and conversion, and energy and nitrogen utilization were determined with laying hens. As the level of raw navy bean meal in the diet increased, egg mass production and body weight gain decreased. Declines in production were largely overcome by steaming the bean meal. Methionine supplementation of both raw and steamed meal diets had no effect on performance. Changes in dietary metabolizable energy and nitrogen retention are discussed in relation to bird performance.

SUBSTITUTION OF SORGHUM FOR WHEAT IN DIETS FOR LAYING HENS

1982 ◽  
Vol 62 (1) ◽  
pp. 305-306 ◽  
Author(s):  
E. E. GARDINER ◽  
D. J. MAJOR ◽  
S. DUBETZ
Keyword(s):  
Body Weight ◽  
Key Words ◽  
Egg Production ◽  
Laying Hens ◽  
Feed Consumption ◽  
White Leghorn ◽  
Egg Weight ◽  
Single Comb

The effects of substituting various levels of sorghum for wheat in diets for laying hens were studied. Egg production, egg weight, feed consumption, body weight and hatchability of eggs from Single Comb White Leghorn hens were not affected by the proportion of sorghum in the diet. Key words: Sorghum, wheat, nutrition, egg production

Effect of feeding different levels of lysine and protein on the performance of WLH layers

2017 ◽  
Author(s):  
Naga Raja Kumari K ◽  
Ravinder Reddy V ◽  
Chinni Preetham V ◽  
Srinivas Kumar ◽  
D.Sen A.R. ◽  
...  
Keyword(s):  
Body Weight ◽  
Feed Intake ◽  
Feed Efficiency ◽  
Egg Production ◽  
Egg Mass ◽  
Egg Weight ◽  
Protein Levels ◽  
Lysine Concentration ◽  
Different Levels ◽  
Effect Of Feeding

A trial was conducted to evaluate the requirement of digestible lysine at various protein levels in the diet of WLH layers (BV-300) from 25-44 weeks of age. Layers (528) were fed with diets containing two protein levels i.e. 13.36 and 15.78 % each with 5 % concentration variations of lysine (0.50, 0.55, 0.60, 0.65, and 0.70) and a control with 17 % CP and 0.70 % lysine. Each diet was fed to six replicates of eight birds. Egg production, feed intake, body weight were not influenced either by the concentration of lysine or by level of protein in diet. Increased (P d” 0.05) egg weight and egg mass were observed with increasing lysine in diets. Better feed efficiency was observed with increasing lysine concentration. It can be concluded that WLH layers require approximately 0.65% lysine with 13.36% CP or 0.63% lysine with 15.78% CP (i.e. 598.80 vs 570 mg/h/day) in diet.

scholarly journals Effect of Phytase Supplementation on the Performance of Babcock-380 Layer Hens

2021 ◽  
Vol 1 (1) ◽  
pp. 36-41
Author(s):  
MD. Ruhul Amin ◽  
Elliyana Nadia Hamidi
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Egg Size ◽  
Basal Diet ◽  
Experimental Period ◽  
Egg Mass ◽  
Egg Weight ◽  
Treatment Groups ◽  
Microbial Phytase ◽  
Production Group

 In order to examine the effect of phytase supplementation in the diet of laying hen this experiment was conducted with 30 commercial hybrid Babcock-380 layers of 73 weeks of age. The hens were grouped into 3 treatment groups and given microbial phytase (Rena Phytase 400) at levels 2.5, 1.5 and 0 (control) g/kg feed in addition to their basal diet (110 g commercial pellet/day). Records on egg production/group/day, egg mass weight/day, body weight of hens at the end of experimental period were taken and analysed. Results revealed that hen house egg production (HHEP) and egg weight (EW) varied (p<0.05) among the treatment groups but level of phytase did not affect (p<0.05) body weight of hens. Both HHEP and EW were in order of 2.5>1.5>0 g/kg feed phytase group and all the means were significantly (p<0.05) different from each other within treatment groups. Microbial phytase supplementation in layer ration proved to be beneficial in terms of egg production and egg size even after 72 weeks of age of hens. Layer farms in Malaysia can use this technology to earn more profit.

Broiler breeder egg production and quality are affected by timing of increased dietary Ca relative to photostimulation

2004 ◽  
Vol 84 (3) ◽  
pp. 411-420
Author(s):  
A. Petruk and D. R. Korver
Keyword(s):  
Body Weight ◽  
Egg Production ◽  
Dietary Treatment ◽  
Feed Consumption ◽  
Optimal Time ◽  
Shell Weight ◽  
Egg Weight ◽  
Broiler Breeder ◽  
Treatment Groups ◽  
Ash Weight

Ross 508 broiler breeder pullets (n = 400) were reared in floor pens in a light-tight facility with feed allocation based on breeder-recommended body weight targets. At 17 wk, 250 pullets within 15% of the mean weight were randomly assigned to individual cages in one of two environmentally controlled environments: 18°C (exp. 1, n = 125) or 28°C (exp. 2, n = 125). The pullets were photostimulated at 20 wk of age. At 2-wk intervals from 18 to 26 wk, successive groups of hens (n = 25 per environment) were switched from a 0.88% Ca grower diet to a 2.96% Ca breeder diet. Dietary treatment names were based on the time (in weeks) relative to photostimulation that the diet was changed from the grower to the breeder diet (PS – 2, PS, PS + 2, PS+4, and PS + 6, respectively). The hens were killed at 31 wk of age and one leg from each hen was taken for bone mineral analysis. The birds in both experiments maintained target body weights as recommended by the primary breeder; however, the hens in exp. 2 did not consume the allotted feed for the final 2 wk of the experiment. Dietary treatment did not affect feed consumption or body weight. Overall percent hen day production was not affected by dietary treatment in either experiment. In exp. 1, hens in the PS + 4 and PS + 6 treatments produced larger eggs and hens in the PS + 4 treatment produced eggs with greater shell weights. Shell weight as a percentage of egg weight was significantly lower from the PS + 6 hens than the other dietary treatment groups. The PS + 4 treatment resulted in the highest bone Ca as a percentage of ash weight, indicating that changing the diet 4 wk after photostimulation was the optimal time to increase bone Ca reserves in that environment. In exp. 2, the PS + 6 treatment had the highest egg weight whereas birds in the PS and PS + 2 treatment groups had the highest shell weights. Percent shell was the lowest in the PS + 6 and PS + 4 treatment groups overall, although it was only significantly different until 27.4 wk of age. Ca as a percentage of bone weight was lowest in the PS + 2 and PS + 6 treatment groups and Ca as a percentage of ash was lowest in the PS + 2 treatment group. Overall, the results suggest that improper timing of increasing dietary Ca either before or too long after photostimulation decreased eggshell quality and bone characteristics. Elevated environmental temperature appeared to exacerbate these effects; therefore, the change from a low-Ca grower to a high-Ca breeder diet must be made with greater precision in hot climates. Key words: Broiler breeder, photostimulation, dietary calcium, calcium metabolism, heat stress

Feed intake, digestibility and growth performance of Dorper-Menz cross bred sheep fed local brewery by-product (Atella) and concentrate mixture at different levels of combination

2020 ◽  
Vol 5 (6) ◽  
pp. 184-190
Author(s):  
M Kokeb ◽  
◽  
Y Mekonnen ◽  
M Tefera ◽  
◽  
...  
Keyword(s):  
Body Weight ◽  
Weight Gain ◽  
Feed Intake ◽  
Body Weight Gain ◽  
Block Design ◽  
Basal Diet ◽  
Weight Changes ◽  
Fecal Samples ◽  
Concentrate Mixture ◽  
Concentrate Mix

The aim of this experiment was to evaluate the effect of graded level of local brewery by-product (atella) replacement to concentrate mixture on feed intake; digestibility and bodyweight change of Dorper-Menz crossbred lambs fed hay basal diet. The feeding period of 90 days was preceded by 15 days of acclimatization period. The experimental design was randomized complete block design with five treatments: T1 [control, hay ad libtium], T2 [25% atella + 75% concentrate mix]; T3 [50% atella + 50% concentrate mix]; T4 [75% atella + 25% concentrate mix] and T5 [100% atella]. Body weight changes were monitored fortnightly for 112 days. At the end of experiment, animals were fitted with feces collection bags and daily feces excretion was collected for seven days. Fecal output of each animal was thoroughly mixed and 20% of the voided feces were sampled to make a composite of fecal samples for each animal over the collection period. The fecal samples were stored frozen at -20°C until processing for chemical analysis. Data on feed intake, body weight change, and digestibility were subjected to analysis of variance using the General Linear Model procedure. The protein and energy contents of atella are high enough to increase intake, digestibility and could be categorized as medium protein feed. Atella alone or at different level with commercial concentrate mixture has significantly increased body weight gain of crossbred sheep. The positive weight gain results of atella supplemented group clearly indicate supplementation of dried atella could be recommended for fattening Dorper-Menz crossbred male lamb. Atella may lose some volatile nutrients during drying process and further research is needed to compare wet atella with dried one.

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