Design of a fault tolerant airborne digital computer. Volume 2: Computational requirements and technology

This final report summarizes the work on the design of a fault tolerant digital computer for aircraft. Volume 2 is composed of two parts. Part 1 is concerned with the computational requirements associated with an advanced commercial aircraft. Part 2 reviews the technology that will be available for the implementation of the computer in the 1975-1985 period. With regard to the computation task 26 computations have been categorized according to computational load, memory requirements, criticality, permitted down-time, and the need to save data in order to effect a roll-back. The technology part stresses the impact of large scale integration (LSI) on the realization of logic and memory. Also considered was module interconnection possibilities so as to minimize fault propagation

Effect of Protein Level, Lysine and Oats in Diets for Growing-Finishing Pigs

Previous research has shown that the protein content of swine diets can be reduced approximately two percent if the diet is supplemented with lysine and if the diet is not deficient in other amino acids. Corn-soybean meal diets that are reduced more than two percent in protein may become deficient in the amino acid tryptophan. Oats contains more lysine and tryptophan but less energy than corn. However, dietary levels of 20 to 30% oats have generally not affected pig performance. The objectives of this experiment were to evaluate the protein and lysine needs of growing-finishing pigs and to determine the value of oats as an amino acid source in low protein diets containing 20% oats as a replacement for corn

Effect of Tryptophan Supplementation of a Low Protein, Corn-Sunflower Meal Diet for Young Growing Pigs

Research conducted at South Dakota State University and reported in the 1983 and 1984 Swine Field Day Proceedings, indicated that the amino acid tryptophan is limiting in a lysine supplemented, 12% protein, corn-sunflower meal diet fed to young weaned pigs. This trial was conducted to further study the effects of tryptophan supplementation of an amino acid fortified, 12% protein, corn-sunflower meal diet and to estimate the dietary tryptophan requirement of the young weaned pig fed that diet

Effect of Added Threonine in a Lysine Supplemented, Low Protein Corn-Sunflower Meal Diet

Threonine has been shown to be one of the limiting amino acids in certain types of swine diets. Recent research indicates that the level of threonine required by the young growing pig may be greater than that suggested by the National Research Council (NRC). Research reported in the 1983 Swine Field Day Proceedings, indicated that lysine, threonine and tryptophan are the first three limiting amino acids in a corn-sunflower meal diet with lysine being most deficient. The trial reported, herein, was conducted to identify the optimum level of threonine required by the young growing pig fed a low protein, lysine supplemented corn-sunflower meal diet

The Effect of Protein Level and Amino Acid Supplementation of Sunflower Meal Diets for Young Pigs

Dietary protein recommendations for pigs were developed using corn-soybean meal diets. Diets formulated to contain less protein than recommended will result in reduced performance because of a deficiency of amino acid(s). However, more recent research suggests that pig performance can be maintained when feeding diets containing a substantially reduced protein content if limiting amino acids are supplemented to meet dietary requirements. Previous research at South Dakota State University has identified lysine, tryptophan and threonine as deficient amino acids in a 12% protein, corn-sunflower meal diet. The objectives of the trial reported herein were to study the effect of protein level (12, 15, 18 and 21%) in corn-sunflower meal diets containing all essential amino acids in excess of National Research Council recommendations and to determine the effect of glutamic acid supplementation to a low protein (12%) diet as a non-essential amino acid nitrogen source

Barley Diets for Growing-Finishing Pigs

Barley is an important feed ingredient that may be used as an alternative for corn in swine diets. It is higher in protein and the amino acid lysine than is corn. But, it also contains less energy than corn and thus diets based on barley as the grain source are less efficient than corn based diets. It has also been suggested that hogs fed barley diets do not yield ~s well as those fed corn diets. The objectives of this experiment were to determine the effect of lysine and fat supplementation to barley based diets and to compare these diets with corn based diets. A further objective was to determine the effect of barley diets on carcass characteristics and dressing percentage

Effect of Threonine Supplementation of a Low Protein, Corn-Sunflower Meal Diet for Young Growing Pigs

Of the ten essential amino acids required by swine, lysine, tryptophan and threonine have been reported by many researchers as being the first three limiting amino acids in cereal based swine diets. Research reported in the 1984 Swine Field Day Proceedings suggested supplementation of threonine to an amino acid fortified, low protein, corn-sunflower meal diet improves weanling pig performance. This trial was conducted as a continuation of the study of the effects of threonine supplementation an amino acid fortified, low protein, corn-sunflower meal diet and to estimate the dietary requirement of threonine of young growing pigs

Effect of Added tryptophan in a Lysine Supplemented Low-Protein, Corn-Soybean Meal Diet

South Dakota\u27s production of sunflowers has been increasing during recent years and sunflowers are now recognized as an important crop in the state. Sunflowers are an excellent source of oil, with certain varieties containing up to 40% oil. Similar to soybean meal, the by-product of sunflower oil processing is a meal which can be used as a source of protein in formulating swine rations. A previous experiment, reported in the 1983 Swine Field Day Proceedings, indicated that the limiting amino acids in a corn-sunflower meal diet are lysine, tryptophan and threonine. This study was conducted to identify the optimum level of tryptophan in a lysine fortified low-protein, corn-sunflower meal diet for young growing pigs

Lysine Supplementation of Barley-Soybean Meal Diets for Growing Pigs

The lysine requirement of pigs as suggested by the National Research Council (NRC) was determined using corn-soybean meal based diets. More recent research has indicated that differences exist in the availability of lysine in different ingredients. It has been suggested that lysine in barley is less available than lysine in corn. Thus, it is possible that diets formulated with barley and soybean meal to meet the NRC\u27s suggested lysine requirement, might actually be deficient in this amino acid. This study was conducted to determine the lysine needs of pigs fed barley-soybean meal diets from approximately 45 to 75 lb

The Effect of Selenium on Pigs of Different Hair Color

It has been suggested that levels of certain trace elements in hair may be associated with the dietary intake of the element. High levels of selenium in the diet have been shown to increase hair selenium in swine and also in cattle. The possibility that the degree of selenium toxicity is related to hair color has been proposed for cattle, horses and swine. This study was conducted to determine if storage of selenium in the hair of pigs varied with their color and also to determine if hair color was related to degree of selenium toxicity