C.D. Schultz
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View article: Use of a sperm analyzer for evaluating broiler breeder males. 2. Selection of young broiler breeder roosters for the sperm quality index increases fertile egg production
Use of a sperm analyzer for evaluating broiler breeder males. 2. Selection of young broiler breeder roosters for the sperm quality index increases fertile egg production Open
Previous research has shown that the sperm quality index (SQI) of rooster semen is indicative of overall semen quality. The objectives of the present experiments were to determine the correlation of the SQI with semen characteristics and f…
View article: Use of a sperm analyzer for evaluating broiler breeder males. 1. Effects of altering sperm quality and quantity on the sperm motility index
Use of a sperm analyzer for evaluating broiler breeder males. 1. Effects of altering sperm quality and quantity on the sperm motility index Open
A new instrument for assessing mammalian semen attributes, the Sperm Quality Analyzer, was evaluated as a potential tool for determining rooster sperm quality. The Sperm Quality Analyzer measures the "activity" of sperm in a semen sample a…
View article: Growth Promotion in Broilers by Copolymer CRL87-61
Growth Promotion in Broilers by Copolymer CRL87-61 Open
CRL87-61 is one of a series of nonionic block copolymers which are being developed for use in human and animal medicine. Recent studies have suggested that this compound holds potential as a growth promoter in broiler chickens. Our report …
View article: Yolk Sac Absorption and Initiation of Growth in Broilers ,
Yolk Sac Absorption and Initiation of Growth in Broilers , Open
A series of three experiments was conducted to determine the role of the yolk sac in initiation of growth in broilers. In Experiment 1, absorption of the yolk sac was found to precede initiation of growth in newly hatched broilers by appro…
View article: Daily Feed and Water Consumption of Broiler Chicks From 0 to 21 Days of Age
Daily Feed and Water Consumption of Broiler Chicks From 0 to 21 Days of Age Open
Two trials were conducted to determine the normal feed and water consumption of broiler chicks from placement to 21 days of age. Daily intakes were determined on straight-run chicks. Mash feed and water were supplied ad libitum. Prediction…
View article: Evaluation of the Chemical and Physical Properties of Hardwood Bark Used as a Broiler Litter Material
Evaluation of the Chemical and Physical Properties of Hardwood Bark Used as a Broiler Litter Material Open
Various physical and chemical properties of hardwood bark (HB) and pine shavings (PS) were compared. Subsequently, efficacies of these materials as broiler litter were determined in two production trials. Upon receipt of each material, moi…
View article: Effects of Ascorbic Acid on Plasma Thyroxine Concentrations and Eggshell Quality of Leghorn Chickens Treated with Dietary Thiouracil
Effects of Ascorbic Acid on Plasma Thyroxine Concentrations and Eggshell Quality of Leghorn Chickens Treated with Dietary Thiouracil Open
Because ascorbic acid (AA) and the thyroid hormones are known to influence eggshell formation, the effects of AA on body weight, total plasma thyroxine (T4), egg production, and eggshell quality of Single Comb White Leghorn (SCWL) hens con…
View article: Effect of Refeeding Following Short-Term Deprivation of Feed or Water, or Both, on Selected Physiological Parameters for Broiler Chickens , , ,
Effect of Refeeding Following Short-Term Deprivation of Feed or Water, or Both, on Selected Physiological Parameters for Broiler Chickens , , , Open
Two experiments were conducted to determine the effects of refeeding broilers following a 12-h fast on body weight, serum glucose, serum protein, packed cell volume, hemoglobin, serum sodium, serum potassium, and plasma refractive index. F…
View article: The Effect of Extended Holding Time, Temperature, and Dietary Energy on Yields of Broilers
The Effect of Extended Holding Time, Temperature, and Dietary Energy on Yields of Broilers Open
Feed was withdrawn, but water was available, for 12 hr before 8-week-old broilers were held in crates at 10.0 and 32.2 C for 8 and 16 hr or at 26.7 C for 16 hr. The effects of holding time, holding temperature, and dietary energy on shrink…
View article: Salt Utilization Studies with Poultry
Salt Utilization Studies with Poultry Open
EVIDENCE was obtained in previous studies at this station indicating that the growth rate of chicks fed graded dietary levels of common salt or sodium chloride was dependent upon the particle size of the salt (Dilworth et al., 1970). It wa…
View article: Salt Utilization Studies with Poultry
Salt Utilization Studies with Poultry Open
THE sodium requirement of the chick was recently re-evaluated by Nott and Combs (1969). Using a corn-soybean meal basal diet, these workers concluded that a dietary sodium level between 0.11 and 0.13% was adequate for optimum chick growth.…