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ONCE upon a time, in 1960, I graduated from the University of Illinois and started working for Monsanto. This began a 60-year connection with the poultry industry for me. In [...]

THERE is currently a debate within the scientific community about the best method to use to measure phosphorus digestibility and bioavailability for poultry. Methods that have been evaluated include prececal [...]

THE Informal Nutrition Symposium, part of the 2019 Poultry Science Assn, annual meeting in Montreal, Que., was on the topic 'Towards Resolving Unsettled Issues in Poultry Nutrition.' Dr. Carl Parsons [...]

HU et al. (2019) reported research designed to investigate the effect of an emulsifier, in combination with two sources of oil, in diets designed for meat ducks. The authors hypothesized [...]

MEYER, Johnson and Bobeck at Iowa State University are investigating an interesting hypothesis: Continuous intense genetic selection for broilers exhibiting fast growth and heavy breast muscling has resulted in broilers [...]

THE nutritional value of a feed ingredient is determined by its digestible nutrient content. In the computer formulation of poultry diets, the basic assumption is that the supply of digestible [...]

THE 106th annual meeting of the Poultry Science Assn. was held recently in Orlando, Fla., where 577 technical papers were presented in 35 sessions, with 349 oral presentations and 228 [...]

INDIVIDUAL feed ingredients exhibit variation in nutrient content primarily as a result of variation in raw materials or variation in production processes. Ingredient nutrient variation can potentially affect broiler performance [...]

SEVERAL benefits result from feeding low-protein diets to commercial broilers. These benefits have manifested over a period of years, less the result of specific targets and more the result of [...]

At the Massey University Institute of Veterinary, Animal & Biomedical Sciences in New Zealand, V. Ravindran's group recently published a series of papers on the digestibility of calcium and phosphorus. [...]

THE International Poultry Scientific Forum is a concurrent meeting of the Southern Poultry Science Society and the Southern Conference on Avian Diseases that is sponsored by those two organizations as [...]

BURLEY and Patterson recently published research examining alternatives to synthetic methionine for use in organic laying hen diets. Their paper explains that the U.S. Department of Agriculture's National Organic Program [...]

YUN et al. (2017) reported research designed to evaluate the effects of dietary probiotics and prebiotics on broiler performance, nutrient digestibility, relative organ weight, fecal microbiota, blood profile and excreta [...]

SEVENTY posters were presented in the 'Feed Additives' section of the 21st European Symposium on Poultry Nutrition. It was, by far, the largest section of papers and included just about [...]

IN a study reported by J. van Harn et al., the pre-cecal phosphorus digestibility of three commercial products of animal origin--Delfos, Calfos and bone meal--was compared with two inorganic sources: [...]

RESEARCH published by Kaczmarek et al. (2016) was designed to evaluate the effect of encapsulated calcium butyrate on broiler performance. Butyric acid and butyric acid salts (butyrate) have been demonstrated [...]

FEED costs represent 60-70% of the cost of producing a broiler. Reducing feed costs is an important objective, and the use of alternative ingredients is a key part of reducing [...]

THE Poultry Science Assn. held its annual meeting July 20-22 as a virtual meeting. There were 1,139 registrations, with 500 attendees from the U.S. and more than 350 international registrants. [...]

FEED formulation relies on the basic assumption of the additivity of the nutrients from the contributing ingredients. Research reported by Cowieson et al. was designed to determine the additivity of [...]

AT the Informal Nutrition Symposium, part of the 2019 Poultry Science Assn, annual meeting in Montreal, Que., M.R. Bedford and A.J. Cowieson presented a paper on 'Matrix Values for Exogenous [...]

ONE of the most outstanding poultry science symposiums is sponsored by the Poultry Research Foundation of the University of Sydney and the Australian branch of the World's Poultry Science Assn. [...]

STANDARDIZED ileal amino acid digestibility (SIAAD) is a measure of the digestibility of amino acids in a feed ingredient. Digestible amino acids are the best measure of the amino acid [...]

ANTIBIOTICS have been used effectively in the poultry industry for decades. However, the European Commission decided to phase out and ultimately ban the marketing and use of antibiotics as growth [...]

THE inclusion of phytase in poultry diets has become a standard practice. The commonly recommended level of inclusion has been 500 phytase units (FTU) per kilogram. As a result of [...]

THE 25th World's Poultry Congress was held Sept. 5-9 in Beijing, China, and was co-organized by the China Branch of the World's Poultry Science Assn, and the Chinese Association of [...]

COMMERCIAL laying hens lay the majority of their eggs during the morning. The biological egg production process begins with ovulation. The ovulated yoke enters the reproductive tract of the laying [...]

THE July 12, 2016, afternoon session of the annual Poultry Science Assn, meeting featured a symposium on the challenges involved with antibiotic-free (ABF7) broiler production. Of particular interest was a [...]

CHOICE feeding is an option that may be useful in alternative systems of poultry production, such as free-range and organic poultry growing, which involve access to outdoor facilities. In the [...]

INCREASING awareness of the impact of nutrient excretion into the environment and the importance of reducing feed costs has stimulated the use of precision feed formulation based on the best [...]

STEVE Pritchard of U.K. consulting firm Premier Nutrition presented an invited paper at the Australian Poultry Nutrition Symposium on 'Life Without Antibiotic Growth Promoters, a U.K. Perspective.' There has been [...]

LIMESTONE: 40% calcium, and 100% available. What else is there to know about limestone? Limestone is cheap. Just put it in the ration, and don't worry about it. That was [...]

COWIESON et al. (2020) reported research designed to determine the amino acid digestibility of two distinct batches of soybean meal fed to birds with or without an exogenous protease while [...]

THE International Poultry Scientific Forum is a concurrent meeting of the Southern Poultry Science Society and the Southern Conference on Avian Diseases that is sponsored by those two organizations as [...]

LEMME et al. (2019) reported research designed to explore the benefits of reducing dietary protein in broiler diets. The experiment consisted of 5,000 day-old, straight-run Ross 308 chicks that were [...]

RESEARCH and experience have demonstrated the value of phytase enzymes in unlocking phosphorus from feed phytate. Evidence suggests that phytase also contributes to improving the availability of energy, amino acids [...]

THE 109th annual meeting of the Poultry Science Assn. was held in Montreal, Que., with 1,441 attendees representing 50 countries. At the meeting, 715 technical papers were presented in 37 [...]

A ROUGH calculation shows that significant levels of total phosphorus occur naturally in corn/ soybean meal diets formulated for poultry. The levels of total phosphorus are high enough to account [...]

APPROXIMATELY two-thirds of the total phosphorus contained in feedstuffs of plant origin is bound to phytic acid. Phytate acid-bound phosphorus is poorly digested by poultry. Also, phytic acid can bind [...]

REDUCING the protein content of broiler diets has generated a lot of interest. Protein is one of the most expensive nutrients in the diet, and feed represents about 70% of [...]

ONE of the most outstanding poultry science symposiums is sponsored by the Poultry Research Foundation of the University of Sydney and the Australian branch of the World's Poultry Science Assn. [...]

UNDIGESTED nutrients are a byproduct of animal production. Reducing the amount of undigested nutrients, in particular nitrogen and phosphorus, is an important objective. Enzymes have been used successfully to improve [...]

EVERYONE has a vested interest in the publication of a new update to the ninth revised edition of the National Research Council (NRC) Nutrient Requirements of Poultry. A major portion [...]

THE opening section of the technical presentations at the Australian Poultry Science Symposium was titled 'Early Chick Nutrition.' Genetic selection and improvements in nutrition have reduced the time required to [...]

THE International Poultry Scientific Forum is a concurrent meeting of the Southern Poultry Science Society and the Southern Conference on Avian Diseases. The Southern Poultry Science Society, the Southern Conference [...]

DECADES of selecting broilers for fast growth and more efficient growth have had an effect on the broiler breeders. In 50 years, broiler bodyweight has increased more than 450%, while [...]

THE second Poultry Science Assn. Latin American Scientific Conference was held in Campinas, Sao Paulo, Brazil, in November.A total of 271 scientific papers were presented in 33 technical sessions. Subject [...]

THE addition of enzymes to poultry feed has become common in the industry. Phytase, in particular, is widely used in a majority of the poultry feed manufactured today. There are [...]

O'NEILL et al. recently published research on the value of replacing standard soybean meal with "processed" soybean meal in broiler diets. The authors state that processed soybean meals are commonly [...]

AT the 107th annual meeting of the Poultry Science Assn., held in San Antonio, Texas, 562 technical papers were presented in 39 sessions, with 344 as oral presentations and 218 [...]

JING et al. of the University of Manitoba published research that was conducted to accurately define the minimal available phosphorus (AP) requirement for the laying hen. Phosphorus is an essential [...]