The Effect of Varied Dietary Crude Protein Levels with Balanced Amino Acids on Performance and Egg Quality Characteristics of Layers at First Laying Phase

Adeyemo, G. O.; Abioye, Sulaiman Adewole; Aderemi, F. A.

doi:10.4236/fns.2012.34074

Cited by 25 publications

(19 citation statements)

References 8 publications

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“…According to Jardim Filho et al (2008), failure in nutrient supply results in poor quality eggs before impairment in the mobilization of nutrients for the maintenance of the reproductive system and the process of egg formation. This is particularly true when it comes to protein levels which determine production costs and depression of performance parameters and egg quality (ADEYEMO et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

Santos

Geraldo

Machado

et al. 2014

Acta Sci. Anim. Sci.

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ABSTRACT. Egg quality of semi-heavy laying hens fed on low protein diets (14.0% CP) and on different lysine levels is evaluated, while maintaining the same ratio of digestible amino acids / digestible lysine. Four hundred and twenty commercial strain Isa Brown laying hens, 28 weeks old, were divided into 42 experimental plots. A completely randomized design with six treatments and seven replicates was employed in four production cycles of 28 days each. Treatments comprised Control -16.92% CP; 0.750% digestible lysine. Treatments 1 to 5, with CP levels 14% and digestible lysine levels 0.600, 0.675, 0.750, 0.825 and 0.900% respectively. Levels of Treatments 1 and 2 (0.546 and 0.640% digestible Met + Cys / 0.600 and 0.675% digestible lysine) provided smaller egg size. On the other hand, eggs had higher shell percentage when compared to control diet. When compared to other digestible amino acids, digestible lysine requirement may be estimated at 0.750% in a diet with 14% CP, which corresponds to the average daily intake of 876 mg dig. lysine hen -1 day -1 and 798 mg dig. Met + Cys hen -1 day -1 , without jeopardizing performance and eggs' internal and external quality.Keywords: ideal protein, digestible amino acids, Isa Brown, requirement, diet.Níveis de lisina digestível para poedeiras semipesadas e seus efeitos sobre a qualidade dos ovos RESUMO. A presente pesquisa objetivou avaliar a qualidade dos ovos de poedeiras semipesadas submetidas a dietas com baixa proteína (14,0% PB) e diferentes níveis de lisina, mantendo a mesma relação aminoácidos digestíveis/lisina digestível. Foram utilizadas 420 poedeiras da linhagem comercial Isa Brown, com 28 semanas de idade distribuídas em 42 parcelas experimentais. Foi utilizado um delineamento inteiramente casualizado com seis tratamentos e sete repetições, em quatro ciclos de produção de 28 dias/cada. Os tratamentos foram: Controle -16,92% PB; 0,750% lisina digestível. Tratamentos 1 ao 5, com níveis de PB de 14% e lisina digestível de 0,600; 0,675; 0,750; 0,825 e 0,900%, respectivamente. Os níveis referentes aos tratamentos 1 e 2 (0,546 e 0,640% Met + Cis digestível / 0,600 e 0,675% de lisina digestível) proporcionaram menor tamanho do ovo; em contrapartida os ovos obtiveram maior porcentagem de casca, quando comparados à dieta controle. A exigência de lisina digestível em relação aos demais aminoácidos digestíveis, pode ser estimada em 0,750% em dieta com 14% de PB, o que corresponde ao consumo médio diário de 876 mg lisina dig. ave -1 e 798 mg Met + Cis dig. ave -1 dia -1 , sem comprometer o desempenho e qualidade interna e externa dos ovos.Palavras-chave: proteína ideal, aminoácidos digestíveis, Isa Brown, exigência, dieta.

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Section: Introductionmentioning

confidence: 99%

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

Santos

Geraldo

Machado

et al. 2014

Acta Sci. Anim. Sci.

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“…According to Alagawany et al (2016), the live body weight of laying hens improved in the hens supplemented with high levels (18% and 20 % CP) as to low protein diets (12%, 14%, and 16%). Similarly, Adeyemo et al (2012) reported that higher levels of dietary protein lead to increases in egg production and egg weight, which resulted significant improvement in the feed to egg mass ratio. However, the result is contrary to the findings of Kingori et al (2010) who reported the body weight of laying hens was not affected by dietary protein level.…”

Section: Discussionmentioning

confidence: 95%

Effects of Supplementing Laying Hens with Purified Amino Acid Prepared from Animal Blood

Joshi

Wandita

Yang

et al. 2019

Trop. Anim. Sci. J.

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The objective of the experiment was to investigate the effects of supplementing laying hens with purified amino acids (PAA) derived from the blood of animal slaughter house on their egg production, egg quality, and immune response. The experiment was based on completely randomized design. A total of 144 Isa Brown laying hens (56-weeks old) were randomly allotted to 4 treatments with 4 pen replications (control, T1: 0.05%, T2: 0.1%, and T3: 0.5% PAA). Each pen housed nine laying hens. The laying hens were reared under a deep litter system. Once a week, a total of 12 eggs of each treatment were collected for egg quality analysis. At the end of the experiment, blood samples were collected for biochemical analysis and cytokines profiles using ELISA kit assays. Hen day egg production and hen house egg production increased significantly (P<0.05) along with the increase in PAA supplementation. The average egg weight increased significantly (P<0.05) with PAA supplementation. Significant differences (P<0.05) were also found in egg shell strength, shell thickness, and albumen ratio. Blood biochemical variables, such as glucose, total cholesterol, blood urea nitrogen (BUN), total bilirubin, and glutamate oxalate transaminase (GOT) were within the normal range. However, the glucose was highest in the control group. Whereas, the total cholesterol and total bilirubin were highest in T2 as compared to control group. Plasma immunoglobulin A (IgA) and immunoglobulin G (IgG), interleukin-1 (IL-1), interleukin-2 (IL-2) concentrations were not affected by PAA supplementation. Plasma interferon gamma (IFNγ) of PAA supplemented treatment groups was significantly (P<0.05) lower than the control group. However, tumor necrosis factor alpha (TNFα) was significantly (P<0.05) higher in T2. On the basis of these results, we conclude that PAA supplementation improved the production performance of laying hens without affecting their health.

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“…This is in agreement with the study of de Beer and Coon (2006) that hens fed high protein had higher egg production. Research of Adeyemo et al (2012) indicated that there were a direct relationship between protein intake and performance of laying hen at the first production. Joseph et al (2000) suggested that the high protein level in feed result high egg production.…”

Section: Egg Production and Egg Weightmentioning

confidence: 99%

The Performance of Laying Hens Fed Different Calcium Source

Kismiati

Yuwanta

Zuprizal

et al. 2012

J. Indonesian Trop. Anim. Agric.

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ABSTRAKPenelitian bertujuan untuk mengevaluasi penampilan produksi ayam petelur yang diberi pakan dengan sumber kalsium berbeda. Penelitian menggunakan 200 ekor ayam petelur strain Isa Brown umur 25 minggu. Ayam dipelihara didalam kandang batre individual selama 12 minggu. Empat sumber kalsium (batu kapur sebagai kontrol, 5% batu kapur + 2,5% limbah kerabang telur, 2,5% batu kapur + 5% limbah kerabang telur, dan 7,5% limbah kerabang telur) digunakan dalam pakan penelitian. Rancangan pecobaan yang digunakan yaitu Rancangan Acak Lengkap dengan 4 perlakuan dan 5 ulangan. Setiap unit percobaan terdiri dari 10 ekor ayam petelur. Parameter yang diukur yaitu konsumsi pakan, konsumsi protein, konsumsi kalsium, konsumsi fosfor, produksi telur, berat telur dan konversi pakan. Hasil penelitian menunjukkan bahwa penggunaan 7,5% limbah kerabang telur sebagai sumber kalsium meningkatkan konsumsi pakan, konsumsi kalsium, konsumsi fosfor, produksi telur dan berat telur kecuali konversi pakan. Kesimpulan dari penelitian ini adalah penggunaan limbah kerabang telur sebagai sumber kalsium pakan ayam petelur menghasilkan performa produksi lebih baik dibanding menggunakan batu kapur dan campuran batu kapur dengan limbah kerabang telur.Kata kunci : kalsium, limbah kerabang telur, penampilan, produksi. ABSTRACTThe research was aimed to evaluate the performance of laying hens fed different calcium sources. Two hundreds of Isa Brown laying hens were used in this study. The hens were raised in individual battery cages units for 12 weeks. Four calcium source (limestone as a control, 5% limestone + 2.5% eggshells waste, 2.5% limestone + 5% eggshells waste and 7.5% eggshell waste) were used in feed experiment. A completely randomized design was applied, with 4 treatments and 5 replications. Each experimental unit consisted of 10 laying hens. The parameters measured were feed intake, protein intake, calcium intake, phosphorus intake, egg production, egg weight and feed conversion ratio. Results of the research showed that the calcium source had significantly effect on performance productions. The use of eggshell waste 7.5% significantly increased the feed intake, calcium intake, phosphorus intake, egg production and egg weight except for feed conversion ratio. The conclusion of this research was that the use of eggshell waste as calcium source of feed resulted in better performance than using limestone or mixed limestone with eggshell waste.

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The Effect of Varied Dietary Crude Protein Levels with Balanced Amino Acids on Performance and Egg Quality Characteristics of Layers at First Laying Phase

Cited by 25 publications

References 8 publications

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

<b>Digestible lysine levels for laying hens and their effects on egg quality</b>

Effects of Supplementing Laying Hens with Purified Amino Acid Prepared from Animal Blood

The Performance of Laying Hens Fed Different Calcium Source

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