scholarly journals Application of logistic model to predict egg production pattern of quails given a low-energy diet supplemented with methionine

2021 ◽  
Vol 902 (1) ◽  
pp. 012017
Author(s):  
L A Pradista ◽  
M Veronica ◽  
N Widyas ◽  
S Prastowo ◽  
A Ratriyanto
Keyword(s):  
Treatment Period ◽  
Logistic Model ◽  
Egg Production ◽  
Low Energy ◽  
Energy Utilization ◽  
Production Data ◽  
Adaptation Period ◽  
Methionine Supplementation ◽  
Production Pattern ◽  
Low Energy Diet

Abstract Tropical countries such as Indonesia face high temperatures, which impact the energy utilization in poultry. This study aims to predict the egg production pattern of quail supplemented with methionine in a low-energy diet. In total, 204 laying quails were divided into two treatments: Control (T0) and 0.12% methionine supplementation (T1). After three weeks adaptation period, daily egg production data were collected for two periods of four weeks each (treatment period week 4-11). The t-test was applied to analyze the egg production data. Egg production patterns were predicted using logistic regression. The egg production pattern of T1 showed a significant increase compared to T0 during the treatment period (p<0.01) and overall period (p<0.01). Peak production from T0 and T1 was 59.14% vs. 66.82%, with a production rate of 0.22 vs. 0.18 and prediction accuracy of 91% vs. 86%, respectively. In conclusion, methionine supplementation to a low-energy diet increased egg production of quails.

scholarly journals Non-linear prediction model for egg production of quails the tropics with methionine supplementation

2021 ◽  
Vol 902 (1) ◽  
pp. 012019
Author(s):  
A Masykur ◽  
E Purwanti ◽  
N Widyas ◽  
S Prastowo ◽  
A Ratriyanto
Keyword(s):  
Logistic Model ◽  
Egg Production ◽  
Linear Prediction ◽  
Coefficient Of Determination ◽  
Diet Modification ◽  
Methionine Supplementation ◽  
Production Curve ◽  
Production Pattern ◽  
The Tropics ◽  
Linear Prediction Model

Abstract This study aimed to predict the egg production of quails receiving methionine supplementation. Two hundred and four quails were divided into two treatment diets, and six replicates with 17 quails each. The treatment diets were control (P0) and 0.12% methionine supplementation (P1). Egg production data were collected for eleven weeks, and a T-test was performed. Next, the data was plotted to get the actual egg production curve. We used a logistic regression model to predict the egg production pattern and calculated the model’s fitness with the coefficient of determination (R2). The results showed that methionine supplementation increased egg production by 9.43% (p<0.01). Based on the actual production curve, the increase in initial production to peak production of P1 was slower than P0, but P1 had a higher egg production than P0. The logistic model predicts that peak production of P1 was higher than P0 (62.74% vs. 56.79%), although the production rate of P1 was lower than P0 (0.21 vs. 0.36). In addition, the accuracy of both P0 and P1 models was 0.88 and 0.92, respectively. Thus, the logistic model can predict quail egg production in the tropics due to diet modification with high accuracy.

The efficiency of food utilization for egg production by pullets and yearling hens

1959 ◽  
Vol 52 (3) ◽  
pp. 364-368 ◽  
Author(s):  
W. Bolton
Keyword(s):  
Crude Protein ◽  
Egg Production ◽  
High Energy ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Food Utilization ◽  
Digestible Energy ◽  
Digestible Protein ◽  
The Cost ◽  
Low Energy Diet

1. The efficiency of food conversion by pullets and yearlings fed on high- and low-energy diets has been determined.2. Egg production was slightly higher by birds fed the low-energy diet for both pullets and yearling hens; pullets laid more eggs than yearling hens.3. For each age, the gross food intake was greater for birds fed the low-energy diet; the consumptions of digestible protein, non-protein digestible energy and metabolizable energy were the same for both diets and both ages of bird.4. The food cost per dozen eggs was slightly greater in the yearling year when the cost of rearing the pullets was ignored, and about the same when it was included.5. The efficiency of utilization of digestible energy and protein showed only a slight decrease from the pullet to the yearling year.6. The variation in the composition and digestibility of eighteen consecutive mixes of the highenergy diet and twenty-five of the low-energy diet was: crude protein 2%, non-protein digestible energy 5% and metabolizable energy 0·4 kg. cal./g. The digestibility of the crude protein and oil was 87%, for both diets; carbohydrates were 81% digestible in the high-energy diet and 59% in the low-energy diet.

Methionine supplements in chicken diets. IV. The effect of DL-Methionine supplementation over full and part of growing period on growth and efficiency of cockerels from the reciprocal crosses of White Leghorns and Australorps

1958 ◽  
Vol 9 (5) ◽  
pp. 708 ◽  
Author(s):  
MW McDonald
Keyword(s):  
Feed Efficiency ◽  
Maximum Dose ◽  
High Energy ◽  
Low Energy ◽  
White Leghorn ◽  
Reciprocal Crosses ◽  
Growing Period ◽  
Methionine Supplementation ◽  
Wheat Products ◽  
Low Energy Diet

The commercial value of DL-methionine supplementation of diets based on wheat products and meatmeal has been investigated. The effects of 0.025, 0.05, and 0.20 per cent. methionine on growth and feed efficiency were studied on White Leghorn chickens up to 6 weeks of age. It was concluded that maximum dose response occurred between 0.05 and 0.20 per cent. supplement. Under simulated commercial conditions, comparisons were made between WL x AO and AO x WL cockerels fed high and low energy diets unsupplemented or supplemented with 0.1 per cent. methionine to 8 weeks of age, or 0.1 per cent. methionine to 12 weeks of age. Neither methionine supplement produced a significant improvement in body weight when the low energy diet was fed. Both methionine supplements produced significant improvements in weight when the high energy diet was fed. In both diets methionine continuously produced highly significant improvements in feed efficiency, while methionine only to 8 weeks produced a significant improvement in efficiency only in the high energy diet. There was no difference between reciprocal crosses in weight or feed efficiency.

Effect of Turmeric Flour (Curcuma domestica) and Fish Oil on Daily Egg Production and Organoleptics of Quail Eggs (Coturnix-coturnix japonica)

2021 ◽  
Vol 10 (1) ◽  
pp. 1
Author(s):  
Aprinda Ratna Lovela ◽  
Moh. Anam Al-Arief ◽  
Ismudiono Ismudiono ◽  
Kusnoto Supranianondo ◽  
Widya Paramita Lokapirnasari ◽  
...  
Keyword(s):  
Experimental Study ◽  
Fish Oil ◽  
Treatment Period ◽  
Egg Production ◽  
Preference Test ◽  
Coturnix Japonica ◽  
Production Data ◽  
Coturnix Coturnix Japonica ◽  
Coturnix Coturnix ◽  
Factorial Method

The purpose of this study was to determine the effect of adding the concentration of turmeric flour and fish oil to the quail formula feed. This research is an experimental study using the factorial method. This experiment used 96 quail (Cortunix cortunix japonica), which were randomized into 6 treatments with 4 replications. Quails were divided into 6 groups and treated with different concentrations of turmeric flour and fish oil in each feed formula. The effects of different formula feeds were observed on changes in egg production and organoleptic changes. Egg production data were taken every day from week 3 to week 4 during the treatment period. The data taken is called Quail Day Production (QDP%). The organoleptic data of eggs were taken at the 3rd week of treatment and the preference test was carried out by 40 panelists on the aroma, taste and level of preference of quail eggs after being boiled. The addition of 0.3% turmeric flour significantly affected egg production but its combination with fish oil did not affect egg production. The combination of the concentration of turmeric flour and fish oil does not change the aroma of the eggs, but changes the taste of the eggs.

scholarly journals Chicken adaptive response to low energy diet: main role of the hypothalamic lipid metabolism revealed by a phenotypic and multi-tissue transcriptomic approach

2019 ◽  
Author(s):  
Frédéric Jehl ◽  
Colette Désert ◽  
Christophe Klopp ◽  
Marine Brenet ◽  
Andrea Rau ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Adipose Tissue ◽  
Feed Intake ◽  
Egg Production ◽  
Brain Plasticity ◽  
Energy Content ◽  
Low Energy ◽  
Layer Chicken ◽  
Low Energy Diet

Abstract Background Production conditions of layer chicken can vary in terms of temperature or diet energy content compared to the controlled environment where pure-bred selection was undertaken. The aim of this study was to better understand the effect of a 15%-energy depleted diet on egg-production, energy homeostasis and metabolism via a multi-tissue transcriptomic analysis. Study was designed to compare effects of the nutritional intervention in two layer chicken lines divergently selected for residual feed intake. Results Chicken significantly increased their feed intake and decreased their abdominal adipose tissue weight in response to the low-energy diet, whereas their egg-production was unchanged. For each production trait, no significant interaction was observed between diet and line. Moreover, the low energy diet had no effect on adipose tissue and liver transcriptomes. By contrast, the nutritional challenge affected the blood transcriptome and, more severely, the hypothalamus transcriptome which displayed 2700 differentially expressed genes. In this tissue, the low-energy diet lead to an over-expression of genes related to endocannabinoid signaling (CN1R, NAPE-PLD) known to regulate feed intake, and to genes related to polyunsaturated fatty acids synthesis (FADS1, ELOVL5 and FADS2) such as the arachidonic acid which is a precursor of anandamide, a key endocannabinoid. A possible regulatory role of NR1H3 (alias LXRα) has been associated to these transcriptional changes. The low-energy diet further affected brain plasticity-related genes involved in the cholesterol synthesis and in the synaptic activity, revealing a link between nutrition and brain plasticity. It also upregulated genes related to protein synthesis, mitochondrial oxidative phosphorylation and fatty acid oxidation in the hypothalamus, suggesting reorganization in nutrient utilization and biological synthesis in this brain area. Conclusions We observed a complex transcriptome modulation in the hypothalamus of chicken in response to low-energy diet suggesting numerous changes in synaptic plasticity, endocannabinoid regulation, neurotransmission, lipid metabolism, mitochondrial activity and protein synthesis. This global transcriptomic reprogramming could explain the adaptive behavioral response (i.e. increase of feed intake) of the animals to the low-energy content of the diet.

The efficiency of food utilization for egg production by pullets

1958 ◽  
Vol 50 (1) ◽  
pp. 97-101 ◽  
Author(s):  
W. Bolton
Keyword(s):  
Egg Production ◽  
High Energy ◽  
Metabolizable Energy ◽  
Low Energy ◽  
The Other ◽  
Food Utilization ◽  
Digestible Energy ◽  
Digestible Protein ◽  
The Cost ◽  
Low Energy Diet

1. The efficiency of food utilization for egg production by pullets has been determined for two diets, one high in energy and the other low.2. Both groups laid at the same rate (245 eggs/bird) throughout the year.3. Birds fed the low-energy diet ate more food, but the intakes of digestible protein, non-protein digestible energy and metabolizable energy were the same for both groups.4. The cost of food perton was higher for the high-energy diet; per bird per year it was the same for both groups.

scholarly journals Chicken adaptive response to low energy diet: main role of the hypothalamic lipid metabolism revealed by a phenotypic and multi-tissue transcriptomic approach

BMC Genomics ◽  
2019 ◽  
Vol 20 (1) ◽  
Author(s):  
F. Jehl ◽  
C. Désert ◽  
C. Klopp ◽  
M. Brenet ◽  
A. Rau ◽  
...  
Keyword(s):  
Feed Intake ◽  
Egg Production ◽  
Brain Plasticity ◽  
Energy Content ◽  
Low Energy ◽  
System A ◽  
Layer Chicken ◽  
The Complement System ◽  
Low Energy Diet

Abstract Background Production conditions of layer chicken can vary in terms of temperature or diet energy content compared to the controlled environment where pure-bred selection is undertaken. The aim of this study was to better understand the long-term effects of a 15%-energy depleted diet on egg-production, energy homeostasis and metabolism via a multi-tissue transcriptomic analysis. Study was designed to compare effects of the nutritional intervention in two layer chicken lines divergently selected for residual feed intake. Results Chicken adapted to the diet in terms of production by significantly increasing their feed intake and decreasing their body weight and body fat composition, while their egg production was unchanged. No significant interaction was observed between diet and line for the production traits. The low energy diet had no effect on adipose tissue and liver transcriptomes. By contrast, the nutritional challenge affected the blood transcriptome and, more severely, the hypothalamus transcriptome which displayed 2700 differentially expressed genes. In this tissue, the low-energy diet lead to an over-expression of genes related to endocannabinoid signaling (CN1R, NAPE-PLD) and to the complement system, a part of the immune system, both known to regulate feed intake. Both mechanisms are associated to genes related polyunsaturated fatty acids synthesis (FADS1, ELOVL5 and FADS2), like the arachidonic acid, a precursor of anandamide, a key endocannabinoid, and of prostaglandins, that mediate the regulatory effects of the complement system. A possible regulatory role of NR1H3 (alias LXRα) has been associated to these transcriptional changes. The low-energy diet further affected brain plasticity-related genes involved in the cholesterol synthesis and in the synaptic activity, revealing a link between nutrition and brain plasticity. It upregulated genes related to protein synthesis, mitochondrial oxidative phosphorylation and fatty acid oxidation in the hypothalamus, suggesting reorganization in nutrient utilization and biological synthesis in this brain area. Conclusions We observed a complex transcriptome modulation in the hypothalamus of chicken in response to low-energy diet suggesting numerous changes in synaptic plasticity, endocannabinoid regulation, neurotransmission, lipid metabolism, mitochondrial activity and protein synthesis. This global transcriptomic reprogramming could explain the adaptive behavioral response (i.e. increase of feed intake) of the animals to the low-energy content of the diet.

Performance of laying hens fed wheat, wheat-barley or wheat-barley-wheat bran based diets supplemented with xylanase

2002 ◽  
Vol 82 (2) ◽  
pp. 193-199 ◽  
Author(s):  
N. Mathlouthi ◽  
M. Larbier ◽  
M. A. Mohamed ◽  
M. Lessire
Keyword(s):  
Wheat Bran ◽  
Egg Production ◽  
Laying Hens ◽  
Conversion Ratio ◽  
Feed Conversion Ratio ◽  
Metabolizable Energy ◽  
Low Energy ◽  
Egg Mass ◽  
Feed Conversion ◽  
Low Energy Diet

Two experiments were conducted to study the response of laying hens to a commercial enzyme preparation (Safizyme XP20) containing 70 000 IU g-1 xylanase. In the first experiment, 270 laying hens (ISA Brown), aged 28 wk, were fed basal diets of wheat (W), wheat-barley (WB) or wheat-barley and wheat bran (WBB) without xylanase, or supplemented with 1400 IU xylanase kg-1 in 3 × 2 factorial arrangement. In the second experiment, 180 ISA Brown laying hens, aged 28 wk, were assigned to 2 × 2 factorial arrangement and fed wheat-based diets containing 2753 or 2653 kcal metabolizable energy (ME) kg-1 without xylanase, or supplemented with 1400 IU xylanase kg-1. Egg production (% hen-day), egg weight, egg mass, feed conversion ratio and changes in body weight were recorded for 12 wk. The effects of xylanase on true metabolizable energy (TME) values of wheat, barley and wheat bran were determined using roosters. Layers fed W-, WB- or WBB-based diets had similar egg mass. The feed conversion ratio of layers fed the WBB-based diet was better (P ≤ 0.05) than that of the other groups. Xylanase improved (P ≤ 0.05) egg mass of layers fed W- or WB-based diets, but it did not affect the performance of hens fed the WBB-based diet. Low dietary ME significantly (P ≤ 0.05) reduced the performance of laying hens. Xylanase supplementation improved (P ≤ 0.05) egg production, egg mass and feed conversion ratio of layers fed the low energy diet. It did improve the feed conversion ratio of layers fed the high-energy diet. Addition of 1400 IU xylanase kg-1 to the low-energy diet was equivalent to an increase of at least 100 kcal ME kg-1. Xylanase increased (P ≤ 0.05) the TME values by 5.2 and 2.44% for wheat and barley, respectively, and did not affect the TME value of wheat bran. Key words: Xylanase, hens, laying, wheat, barley, wheat bran, metabolizable energy.

scholarly journals Chicken adaptive response to low energy diet: main role of the hypothalamic lipid metabolism revealed by a phenotypic and multi-tissue transcriptomic approach

2019 ◽  
Author(s):  
Frédéric Jehl ◽  
Colette Désert ◽  
Christophe Klopp ◽  
Marine Brenet ◽  
Andrea Rau ◽  
...  
Keyword(s):  
Protein Synthesis ◽  
Adipose Tissue ◽  
Feed Intake ◽  
Egg Production ◽  
Brain Plasticity ◽  
Energy Content ◽  
Low Energy ◽  
Layer Chicken ◽  
Low Energy Diet

Abstract Background Production conditions of layer chicken can vary in terms of temperature or diet energy content compared to the controlled environment where pure-bred selection was undertaken. The aim of this study was to better understand the effect of a 15%-energy depleted diet on egg-production, energy homeostasis and metabolism via a multi-tissue transcriptomic analysis. Study was designed to compare effects of the nutritional intervention in two layer chicken lines divergently selected for residual feed intake. Results Chicken significantly increased their feed intake and decreased their abdominal adipose tissue weight in response to the low-energy diet, whereas their egg-production was unchanged. For each production trait, no significant interaction was observed between diet and line. Moreover, the low energy diet had no effect on adipose tissue and liver transcriptomes. By contrast, the nutritional challenge affected the blood transcriptome and, more severely, the hypothalamus transcriptome which displayed 2700 differentially expressed genes. In this tissue, the low-energy diet lead to an over-expression of genes related to endocannabinoid signaling (CN1R, NAPE-PLD) known to regulate feed intake, and to genes related to polyunsaturated fatty acids synthesis (FADS1, ELOVL5 and FADS2) such as the arachidonic acid which is a precursor of anandamide, a key endocannabinoid. A possible regulatory role of NR1H3 (alias LXRα) has been associated to these transcriptional changes. The low-energy diet further affected brain plasticity-related genes involved in the cholesterol synthesis and in the synaptic activity, revealing a link between nutrition and brain plasticity. It also upregulated genes related to protein synthesis, mitochondrial oxidative phosphorylation and fatty acid oxidation in the hypothalamus, suggesting reorganization in nutrient utilization and biological synthesis in this brain area. Conclusions We observed a complex transcriptome modulation in the hypothalamus of chicken in response to low-energy diet suggesting numerous changes in synaptic plasticity, endocannabinoid regulation, neurotransmission, lipid metabolism, mitochondrial activity and protein synthesis. This global transcriptomic reprogramming could explain the adaptive behavioral response (i.e. increase of feed intake) of the animals to the low-energy content of the diet.

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