Search filters

List of works by Youssef Attia

Bee pollen and propolis as dietary supplements for rabbit: Effect on reproductive performance of does and on immunological response of does and their offspring

scientific article published on 04 February 2019

Blood Hematological and Biochemical Constituents, Antioxidant Enzymes, Immunity and Lymphoid Organs of Broiler Chicks Supplemented with Propolis, Bee Pollen and Mannan Oligosaccharides Continuously or Intermittently

scientific article published on 10 October 2017

Capability of different non-nutritive feed additives on improving productive and physiological traits of broiler chicks fed diets with or without aflatoxin during the first 3 weeks of life.

scientific article published on 11 October 2012

Correction to: The impact of COVID‑19 on the sustainability of the environment, animal health and food security, and safety

scientific article published in 2022

Effect of Supplementation with Trimethylglycine (Betaine) and/or Vitamins on Semen Quality, Fertility, Antioxidant Status, DNA Repair and Welfare of Roosters Exposed to Chronic Heat Stress

scientific article published on 12 August 2019

Effect of ascorbic acid or increasing metabolizable energy level with or without supplementation of some essential amino acids on productive and physiological traits of slow-growing chicks exposed to chronic heat stress

scientific article published on 15 December 2010

Effect of bee pollen levels on productive, reproductive and blood traits of NZW rabbits

scientific article published on September 29, 2010

Effect of dietary amounts of inorganic and organic zinc on productive and physiological traits of White Pekin ducks

scientific article published on 01 February 2013

Effect of different dietary concentrations of inorganic and organic copper on growth performance and lipid metabolism of White Pekin male ducks.

scientific article published in January 2012

Effect of different levels of bee pollen on performance and blood profile of New Zealand White bucks and growth performance of their offspring during summer and winter months.

scientific article published in February 2011

Effect of different managerial systems on productive and reproductive traits, blood plasma hormones and serum biochemical constituents of geese.

scientific article published on 12 April 2012

Effect of heat stress on amino acid digestibility and transporters in meat-type chickens.

scientific article published on 02 March 2017

Effect of heat stress on protein utilization and nutrient transporters in meat-type chickens

scientific article published on 10 August 2017

Effect of zinc bacitracin and phytase on growth performance, nutrient digestibility, carcass and meat traits of broilers

scientific article published on 26 November 2015

Effects of Phytase Supplementation to Diets with or without Zinc Addition on Growth Performance and Zinc Utilization of White Pekin Ducks

scientific article published on 25 May 2019

Effects of water restriction on growth performance, feed nutrient digestibility, carcass and meat traits of rabbits.

scientific article published on 28 June 2013

Evaluation of the carryover effect of antibiotic, bee pollen and propolis on growth performance, carcass traits and splenic and hepatic histology of growing rabbits

scientific article published on 03 February 2019

Fatty acid and cholesterol profiles and hypocholesterolemic, atherogenic, and thrombogenic indices of table eggs in the retail market

scientific article published on 27 October 2015

Fatty acid and cholesterol profiles, hypocholesterolemic, atherogenic, and thrombogenic indices of broiler meat in the retail market

scientific article published on 16 February 2017

Impact of Multienzymes Dose Supplemented Continuously Or Intermittently in Drinking Water on Growth Performance, Nutrient Digestibility, and Blood Constituents of Broiler Chickens

scientific article published on 26 February 2020

Impacts of dried whole eggs on productive performance, quality of fresh and stored eggs, reproductive organs and lipid metabolism of laying hens

scientific article published on 01 June 2011

Improving productive and reproductive performance of dual-purpose crossbred hens in the tropics by lecithin supplementation.

scientific article published on 26 July 2008

Influence of Different Time and Frequency of Multienzyme Application on the Efficiency of Broiler Chicken Rearing and Some Selected Metabolic Indicators

scientific article published on 08 March 2020

Laying performance, digestibility and plasma hormones in laying hens exposed to chronic heat stress as affected by betaine, vitamin C, and/or vitamin E supplementation.

scientific article

Microbial and Fungal Phytases Can Affect Growth Performance, Nutrient Digestibility and Blood Profile of Broilers Fed Different Levels of Non-Phytic Phosphorous

scientific article published on 30 March 2020

Mirrors Improve Rabbit Natural Behavior in a Free-Range Breeding System

scientific article published on 06 August 2019

Multiple Amino Acid Supplementations to Low-Protein Diets: Effect on Performance, Carcass Yield, Meat Quality and Nitrogen Excretion of Finishing Broilers under Hot Climate Conditions

scientific article published on 03 June 2020

Performance, carcass characteristics, meat quality and plasma constituents of meat type drakes fed diets containing different levels of lysine with or without a microbial phytase.

scientific article

Prediction of digestible energy and gross energy digestibility of feeds and diets in ostriches.

scientific article published on 22 August 2014

Productive and reproductive performance and egg quality of laying hens fed diets containing different levels of date pits with enzyme supplementations

scientific article published on 29 July 2012

Productive performance and blood profiles of laying hens fed Hermetia illucens larvae meal as total replacement of soybean meal from 24 to 45 weeks of age.

scientific article published on 22 February 2017

Protein and Amino Acid Content in Four Brands of Commercial Table Eggs in Retail Markets in Relation to Human Requirements

scientific article published on 01 March 2020

Recovery from adverse effects of heat stress on slow-growing chicks in the tropics 1: Effect of ascorbic acid and different levels of betaine.

scientific article published on 6 November 2008

Reproductive and productive performance of rabbit does submitted to an oral glucose supplementation.

scientific article published on October 2009

SARS-CoV-2 in animals: potential for unknown reservoir hosts and public health implications

publication published on 01 December 2021

Semen quality, antioxidant status and reproductive performance of rabbits bucks fed milk thistle seeds and rosemary leaves.

scientific article

Semen quality, testosterone, seminal plasma biochemical and antioxidant profiles of rabbit bucks fed diets supplemented with different concentrations of soybean lecithin.

scientific article

The detoxication of nitrate by two antioxidants or a probiotic, and the effects on blood and seminal plasma profiles and reproductive function of New Zealand White rabbit bucks.

scientific article published on 26 November 2012

Whole inedible date in the grower-finisher broiler diets and the impact on productive performance, nutrient digestibility and meat quality

scientific article published on 01 October 2010

Yellow mealworm larvae (Tenebrio molitor, L.) as a possible alternative to soybean meal in broiler diets.

scientific article published on 6 August 2015