General Theory and Practice of Feeding

The Feeding of Poultry as a Practical Science is of Comparatively Recent Origin, But Its Development Has Been Followed by Rapid Improvement in Results

Until comparatively recent years, most poultry keepers paid no attention to whether the food they were giving their poultry was suitable or not. If they…

I've explained here, just what ten years' research has taught ;
Though 'tis simple, 'tis all scientific —
To gain it, many discouraging times I have fought.
(Follow) Twill make your hens more prolific.

Not only you can get a lot more of eggs —
Less labor, less fret, less toil :
Old hens in the molt, won't have those weak legs;…

The weak point in general poultry books has been the scant attention given to the subject of the standard and improved methods of feeding and marketing. The result is that the practical knowledge of these branches of poultry keeping has lagged behind the others.

Of all live stock, poultry is most often misfed, overfed or underfed. Conditions…

To know what to feed, and how, and what quantity, is very important to every one who keeps livestock of any kind, especially poultry. A wrong practice in this respect may not only prevent profit, but result in down-right loss. Realizing the importance of the subject, and the convenience of a hand-book containing all the results of experiment, and…

The wide distribution of domestic fowls throughout the United States and the general use made of their products make poultry of interest to a large number of people. Breeders are continually striving to improve the fowls for some particular purpose, and to excel all predecessors in producing just what the market demands for beauty or utility; but…

The aim of this book is to give a working knowledge of the whole subject of poultry feeds and feeding. The conditions of modern life, and the economic developments in poultry culture, and in other interests directly or indirectly related to it, make some acquaintance with the scientific side of the subject essential. A generation ago, under what we…

The Poultryman's Formulary is compiled at the request of many friends who desire to have in brief and convenient form for reference the best of many formulae for poultry rations, condition powders, remedies and insecticides, which I have used from time to time during more than twenty years of practical experience with poultry.

Some of the…

This Bulletin contains an account of experiments in fattening chickens for market, the incubation of eggs stored under different conditions, the relation of mating to fertility of eggs, and breeding for egg production, including the egg record of the breeding pens for 1899, 1900 and 1901.

This Bulletin contains an account of experiments in fattening chickens for market and the egg record of the breeding pens for 1899.

As a Past-Master of the Poulters' Company of London, I very willingly accepted the proffered opportunity of glancing through the following pages, while they were still in manuscript form, and it appears to me, albeit a work necessarily dealing with theory as much as with experience, to be an exceedingly useful and suggestive treatise on the…

We use data from a recent national survey to analyze the use of sub-therapeutic antibiotics (STAs) among broiler growers. We estimate that 42% of growers do not use STAs in their feed or water, and instead rely on a set of other practices, including pathogen testing, expanded sanitary protocols, altered feeding regimens, and Hazard Analysis and…

This study investigated the effects of various coccidiosis control programs in combination with antibiotic growth promoters (AGPs) on growth performance and host immune responses in broiler chickens. The coccidiosis programs that were investigated included in ovo coccidiosis vaccination (CVAC) with Inovocox or in-feed medication with diclazuril as…

The present study was aimed at elucidating the effects of supplementing mannan-oligosaccharides (MOS) and probiotic mixture (PM) on growth performance, intestinal histology, and corticosterone concentrations in broilers kept under chronic heat stress (HS). Four hundred fifty 1-d-old chicks were divided into 5 treatment groups and fed a corn-soybean…

Specific essential oil (EO) blends and probiotics used as feed additives have been shown to promote healthy digestive microbials resulting in improved poultry production. Two consecutive experiments were conducted with broilers fed corn-soybean meal diets to determine comparative effects of feed additives on ileal and caecal microbial populations…

This pilot analysis was conducted with data from 52 conventional grow-out broiler flocks in a prospective field observational study in the southeastern United States during 2003–2006. Each flock was sampled for Salmonella 1 wk before the end of grow-out, upon arrival at the processing plant, and during processing (prior to and immediately after…

Host defense peptides (HDPs) constitute a large group of natural broad-spectrum antimicrobials and an important first line of immunity in virtually all forms of life. Specific augmentation of synthesis of endogenous HDPs may represent a promising antibiotic-alternative approach to disease control. In this study, we tested the hypothesis that…

Neonatal poultry exhibit a transient susceptibility to infectious diseases during the first week of life that stems from inefficient host defense mechanisms. Yet, the initial host immune response to pathogens is a critical determinant of disease resistance and susceptibility. With this context in mind, novel ways to stimulate or modulate the…

An experiment consisting of two identically designed trials was conducted to determine the nutrient composition and AMEn content of distillers dried grains with solubles (DDGS) in order to develop prediction equations for AMEn in broilers. Fifteen samples of DDGS ranging in ether extract (EE) from 3.15 to 13.23% (DM-basis) were collected from…

In this study, 2 experiments determined the effects of increasing dietary concentrations of deoxynivalenol (DON) on performance, intestinal morphology, and measures of innate immunity in broilers and turkeys. For experiment 1, the 3-wk study used 5 concentrations of DON (up to 18 or 10 mg of DON/kg of feed in broilers or turkeys, respectively) from…

Coccidiosis causes mucosal damage and predisposes birds to enteropathogen infection. In this study pyrosequencing was used to evaluate effects of coccidiosis on the intestinal microflora of broilers given diets without feed additives or supplemented with either a growth promotant antibiotic and an ionophore, or two essential oil blends. DNA samples…