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Evaluation of the use of amino acids profile concept in laying hens nutrition / Shaimaa Rabie Anwar ; Supervised Maha Mohamed Hady , Ramadan Abdelmontaleb Elbanna , Tarek Mostafa Ibrahim

By: Contributor(s): Material type: TextTextLanguage: English Publication details: Cairo : Shaimaa Rabie Anwar , 2015Description: 133 P. : charts ; 25cmOther title:
  • تقييم مفهوم استخدام صورة الاحماض الامينية فى تغذية الدجاج البياض [Added title page title]
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Dissertation note: Thesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Nutrition Summary: Two experimental feeding trials were conducted to visualize the impact of practical application of reduced levels of CP (experiment 1) and/or metabolizable energy (ME) levels (experiment 2) in diets formulated on ideal amino acid profile basis on performance parameters egg weight ( EW ), Average weight gain (AWG), hen day egg production % (HDEP %) and egg mass (EM)), egg quality traits, health status and immunity as well as the economic efficiency of these diets in Bovans - Brown laying hens during the first phase of production. In the first trial, a total of 480 laying hens (22 up to 40 weeks of age) were randomly assigned in to 3 groups (CG18, G16 and G14) each of 8 replicates (20 bird / replicate) in a random block design. Birds received diets of 18, 16 and 14% dietary CP levels, respectively. Results revealed that there were no significant differences (P > 0.05) among dietary treatments in most of performance parameters (HDEP%, EW) as well as EM (g/hens), egg quality traits (shell thickness (ST), albumin height (AH), albumin weight (AW) and Haugh unit as well as antibody titer against Newcastle disease virus (NDV). It was also observed that reduced CP {u2013} amino acid balanced diets (16% & 14%) were more cost effective than commercially available diet (18% CP). In the second trial, a total of 480 commercial Bovans {u2013} Brown laying hens were used during the first phase 1 of egg production (24-40 weeks of age).Based on a 3{u00D7}2 factorial arrangement, birds were randomly assigned to one of six dietary treatments (CG18, G18, G16, G16L, G14, and G14L) in a random block design. Each group consisted of 4 replicates (20 bird / replicate).Experimental diets consisted of 2 intakes of dietary ME levels (2810 and 2710 Kcal/kg)) and 3 intakes of dietary crude protein levels (18%, 16% and 14%)s nutrition
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Item type Current library Home library Call number Copy number Status Date due Barcode
Thesis Thesis قاعة الرسائل الجامعية - الدور الاول المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.10.11.Ph.D.2015.Sh.E (Browse shelf(Opens below)) Not for loan 01010110068028000
CD - Rom CD - Rom مخـــزن الرســائل الجـــامعية - البدروم المكتبة المركزبة الجديدة - جامعة القاهرة Cai01.10.11.Ph.D.2015.Sh.E (Browse shelf(Opens below)) 68028.CD Not for loan 01020110068028000

Thesis (Ph.D.) - Cairo University - Faculty of Veterinary Medicine - Department of Nutrition

Two experimental feeding trials were conducted to visualize the impact of practical application of reduced levels of CP (experiment 1) and/or metabolizable energy (ME) levels (experiment 2) in diets formulated on ideal amino acid profile basis on performance parameters egg weight ( EW ), Average weight gain (AWG), hen day egg production % (HDEP %) and egg mass (EM)), egg quality traits, health status and immunity as well as the economic efficiency of these diets in Bovans - Brown laying hens during the first phase of production. In the first trial, a total of 480 laying hens (22 up to 40 weeks of age) were randomly assigned in to 3 groups (CG18, G16 and G14) each of 8 replicates (20 bird / replicate) in a random block design. Birds received diets of 18, 16 and 14% dietary CP levels, respectively. Results revealed that there were no significant differences (P > 0.05) among dietary treatments in most of performance parameters (HDEP%, EW) as well as EM (g/hens), egg quality traits (shell thickness (ST), albumin height (AH), albumin weight (AW) and Haugh unit as well as antibody titer against Newcastle disease virus (NDV). It was also observed that reduced CP {u2013} amino acid balanced diets (16% & 14%) were more cost effective than commercially available diet (18% CP). In the second trial, a total of 480 commercial Bovans {u2013} Brown laying hens were used during the first phase 1 of egg production (24-40 weeks of age).Based on a 3{u00D7}2 factorial arrangement, birds were randomly assigned to one of six dietary treatments (CG18, G18, G16, G16L, G14, and G14L) in a random block design. Each group consisted of 4 replicates (20 bird / replicate).Experimental diets consisted of 2 intakes of dietary ME levels (2810 and 2710 Kcal/kg)) and 3 intakes of dietary crude protein levels (18%, 16% and 14%)s nutrition

Issued also as CD

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