The effects of heat, water, acid, and alkali treatment of tomato cannery wastes on growth, metabolizable energy value, and nitrogen utilization of broiler chicks.

Two experiments were conducted to determine the effects of heat, water, acid, and alkali treatment of tomato pomace on gain, feed to gain ratio, nitrogen utilization, and ME of diets for broiler chicks. In Experiment 1, both treated and untreated tomato pomace was included in broiler diets at a 10 or 20% level. Results indicated that the level or antinutritional factors present in untreated tomato cannery waste did not appreciably depress any measured production parameter.

Genetic and phenotypic relationships in Japanese quail. 1. Body weight, carcass, and organ measurements.

Live BW, carcass data, and organ data taken at 34 days of age on approximately 1,000 quail of both sexes from 110 sires and 290 dams were utilized to estimate genetic parameters from the initial generation of a selection study. The birds represented a sample of a line selected for high 4-wk BW. Data were analyzed using Henderson's Method 3 (MM3) and restricted maximum likelihood (REML) with and without a relationship matrix.

Estimates of genetic parameters in turkeys. 3. Sexual dimorphism and its implications in selection procedures.

Live, carcass, and skeletal data taken at 16 wk of age on 504 female and 584 male turkeys from 34 sires and 168 dams were utilized to evaluate sex differences in genetic parameter estimates. Data were transformed to common mean and variance to evaluate possible scaling effects. Genetic parameters were estimated from transformed and untransformed data.

Effects of genetic strain, slow versus rapid-feathering maternal genotype, and cage density on the performance of Single Comb White Leghorns.

Two hatches involving 11,158 pullets from 22 Single Comb White Leghorn strain crosses were used in these experiments: 13 from rapid-feathering (k+/-) and 9 from slow-feathering (K/-) dams, some of which shared common genetic backgrounds; and all from 5 homozygous k+ sire types. Birds were grown intermingled within hatch, and were subsequently caged in two laying houses, one with 30.5 cm x 40.

Estimates of genetic parameters in turkeys. 2. Body weight and carcass characteristics.

Data were taken from 1,088 individuals--504 females (F) and 584 males (M)--produced by 34 sires and 168 dams from a randombred control line (RBC2) of turkeys maintained at the Ohio Agricultural Research and Development Center, Wooster, OH. Turkeys were used to estimate genetic and phenotypic parameters among 16-wk body weight and a number of body composition characteristics. Heritabilities (h2) were estimated from sire components of variance for 16-wk weights of muscles of breast (BM: F = .