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13 articles for “laying performance”

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Research ArticleOpen accessEvery word in the titleEffects of Dietary Inclusion of Guar Meal Supplemented by β-Mannanase on Performance of Laying Hens, Egg Quality Characteristics and Diacritical Counts of White Blood CellsMohammad Ehsani, Mehran TorkiProblem statement: Using Guar Meal (GM) in poultry diets has being limited because of having β-mannan, one of the Nonstarch Polysaccharides (NSP). In this study we try evaluating effects of enzyme supplementation of GM-included diets on productive performance of laying hens. Approach: A total number of 144 Lohmann LSL-Lite hens were divided in 24 cages (n = 6). Based on … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 4 · 27 Dec 2010 · 8,496 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleAdding Medicinal Herbs Including Garlic (Allium sativum) and Thyme (Thymus vulgaris) to Diet of Laying Hens and Evaluating Productive Performance and Egg Quality CharacteristicsR. Ghasemi, M. Zarei, M. TorkiProblem statement: In trying to finding phytogenic antibiotic-substitutes this study was done and effects of adding graded levels of Medicinal Herbs (MH) including garlic (Allium sativum) and thyme (Thymus vulgaris) to laying hens’ diet on productive performance investigated. Approach: A total number of 108 Lohmann LSL-Lite hens after production peak were randomly divided in 18 cages (n = 6). Three … …American Journal of Animal and Veterinary Sciences, Vol. 5, Issue 2 · 30 Jun 2010 · 18,511 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleThe Effects of Dietary Whole Rice Hull as Insoluble Fiber on the Flock Uniformity of Pullets and on the Egg Performance and Intestinal Mucosa of Laying HensTossaporn Incharoen, Patchanida ManeechoteOur two experiments were intended to investigate the effects of dietary Whole Rice Hull (WRH) as insoluble fiber on the flock uniformity of pullets and the performance, egg quality and intestinal mucosa structure of laying hens. In experiment 1, a total of 1,500 chicks (4 weeks old) with the same uniform weight were randomly separated into three treatments of 500 … …American Journal of Agricultural and Biological Sciences, Vol. 8, Issue 4 · 2 Nov 2013 · 8,153 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleDietary Inclusion of Probiotics, Prebiotics and Synbiotic and Evaluating Performance of Laying HensMohammad Zarei, Mohammad Ehsani, Mehran TorkiProblem Statement: This study was conduct to compare effects of various commercial feed additives on performance of laying hens. Approach: To evaluate effects of dietary inclusion of feed additives (Yeasturer, A-Max, Thepax, Fermacto and Biomin) on performance of laying hens, 216 Lohmann LSL-Lite hens were divided in 36 cages (n = 6). Approach Hens in 6 cages (replicates) were assigned … …American Journal of Agricultural and Biological Sciences, Vol. 6, Issue 2 · 6 Jun 2011 · 9,373 accessesView PDFCite
Research ArticleOpen accessEvery word in the titlePhysiological Response and Postmolt Performance of Laying Hens Molted by Non-Feed Removal MethodsFariborz Khajali, Saied Karimi, M.R. AkhariOne experiment was conducted to evaluate the physiological response and postmolt performance of laying hens subjected to non-feed removal molting programs. One hundred and eighty 78-week-old Hy-line W36 laying hens were distributed among 45 groups of four birds and located in cages so that mean body weight of each cage was very similar. Three adjacent cages were considered as a … …American Journal of Animal and Veterinary Sciences, Vol. 3, Issue 1 · 31 Mar 2008 · 6,845 accessesView PDFCite
Research ArticleOpen accessEvery word in the titleEffects of Reduced- Protein Diets at Constant Total Sulfur Amino Acids: Lysine Ratio on Pullet Development and Subsequent Laying Hen PerformanceFariborz Khajali, M. Faraji, Saeid Karimi DehkordiThe effect of using a low protein regime in pullet development and subsequent layer performance was studied. The experiment consisted of two periods of rearing and laying. Two hundred and sixty Hy-line W36 chicks were used. In the rearing period, dietary protein level and ME content series of the control group used during starter (18-42), grower (43-63) and developer (64-119d) … …American Journal of Animal and Veterinary Sciences, Vol. 2, Issue 4 · 31 Dec 2007 · 7,067 accessesView PDFCite
Research ArticleOpen accessIn the keywordsUtilization of Eco-Feed Containing Mugwort Microorganism Compounds as a Feed Ingredient Source for Layer HensJassada Ruttanavut, Koh-en Yamauchi, Narin ThongwittayaProblem statement: Due to price hikes in feed, several strategies should be sought to reduce feeding costs. At the same time, there has been a considerable increase in environmental pollution from food waste. If food waste could be transferred into poultry diets, this would solve a great problem, helping poultry producers to reduce feeding costs, while reducing environmental problems arising … …American Journal of Animal and Veterinary Sciences, Vol. 6, Issue 1 · 26 Apr 2011 · 8,372 accessesView PDFCite
Research ArticleOpen accessIn the abstractPrincipal Component Analysis of the Female Pengging Soloan Duck Based on Morphometric TraitsRini Nur Hayati, Subiharta, Yudi Adinata et al.The Pengging Soloan duck is an emerging indigenous genetic resource from Central Java, Indonesia, recognized for its adaptability and egg-laying potential. However, its phenotypic characterization remains limited compared with established Indonesian duck breeds such as Mojosari, Tegal, and Magelang ducks. This study aimed to characterize 70 adult female Pengging Soloan ducks aged 5 6.5 months using Principal Component Analysis (PCA) … …American Journal of Animal and Veterinary Sciences, Vol. 21, Issue 3 · 10 Sep 2026 · 940 accessesView PDFCite
Research ArticleOpen accessIn the abstractMeta-Analysis of Bacillus in Laying Hen Nutrition: Feed Intake, Feed Conversion Ratio and Egg Productive IndicesChristian Anayo Mbajiorgu, Ifeanyichukwu Princewill Ogbuewu, Monnye MabelebeleThis data synthesis study aimed to explore the impact of bacillus additive on performance of laying hens. Three bibliographic databases were scanned, with no restrictions on language and date. The inclusion criteria were randomised and controlled trials using non-diseased laying hens and published in peer-reviewed journals. The eligibility criteria were also information on measured performance parameters and studied moderators. Eighteen … …American Journal of Animal and Veterinary Sciences, Vol. 20, Issue 2 · 17 Jun 2025 · 3,937 accessesView PDFCite
Research ArticleOpen accessIn the abstractEco-Friendly Eggshell Meal on Milk Yield and Quality of Holstein Friesian CowsAmbo Ako, Renny Fatmyah Utamy, Hasbi Hasbi et al.Aditya, S., Stephen, J., & Radhakrishnan, M. (2021). Utilization of Eggshell Waste in Calcium-Fortified Foods and other Industrial Applications: A Review. Trends in Food Science & Technology, 115, 422–432. https://doi.org/10.1016/j.tifs.2021.06.047 Ahmed, T. A. E., Wu, L., Younes, M., & Hincke, M. (2021). Biotechnological Applications of Eggshell: Recent Advances. Frontiers in Bioengineering and Biotechnology, 9, 675364. https://doi.org/10.3389/fbioe.2021.675364 Aminah, S., & Meikawati, … …American Journal of Animal and Veterinary Sciences, Vol. 19, Issue 2 · 26 May 2024 · 7,730 accessesView PDFCite