Introduction . High-density rations have been shown to be responsible for a quick growth in young chickens. Superior growth also has been obtained in turkeys on high-density rations but this faster earlier growth was greatest during the first month. Casual observations have been…
An investigation was made of the effects of exogenous dietary putrescine during the starter period of turkeys on growth, organ development and role in prevention and recovery from subclinical coccidial challenge. Polyamines, protein and DNA concentration of tissues, morphology o…
Experiments were conducted to determine the biological availability of bound and free gossypol in cottonseed meals (CSM), establish the correlation between available gossypol and chick/poult performance, and to assess the relative toxicity of the (+) and (-) isomers of gossypol.…
In ovo feeding (IOF), administration of nutrients into the amnion, may enhance growth by improving intestinal development, function and glycogen status. We studied the effects of IOF arginine (ARG) and HMB on jejunal activity and nutrient absorption. Jejunal expression of aminop…
Experiment one was a factorial arrangement of diets containing two levels of protein (P) (100% (HP) or 70% (LP) of National Research Council (1984) (N.R.C.)) and two levels of energy (E) (100% (HE) or 90% (LE) of N.R.C.), which were fed ad libitum to Nicholas toms from 10 days t…
Lectins are known to bind to the intestinal brush border membrane and induce antinutritional effects such as disruption of the brush border membrane and reduced nutrient digestibility. Thus, three phases of experiments were conducted to investigate the effects of soybean lectin …
In the first study, storage of eggs for 14 versus 4 days reduced embryo survival and hatchability. Three prestorage, preincubation warming times did advance embryonic development, but did not influence hatchability of fertile eggs. In the second study, examination of the perivit…
Studies were conducted to examine the relationship of hen age, fertility and embryonic mortality (EM) in turkeys. Hatch residue was examined from turkey flocks at two ages. One flock was in its first two weeks of egg production and the second flock had been in production for at …
The objectives of the research described in this dissertation were: (1) to develop an assay for determining pancreatic lipase activity in young turkeys by using a glycerol trioleate (GTO) emulsion as substrate and compare it with an assay that utilized a glycerol tributyrate (GT…
High oleic acid corn (HOAC) has been genetically selected for a greater content of oleic acid (OA) that, if used in animal feeds, could improve meat quality. The objectives of this study were to determine the effect of feeding dietary HOAC to turkeys on the carcass fatty acid pr…
Campylobacter is one of the most commonly reported bacterial causes of human food-borne illness in the United States and epidemiological evidence indicates that the majority of human Campylobacter infections result from the improper preparation and consumption of poultry product…
Mycotoxins are low-molecular weight secondary metabolites of filamentous fungi. Worldwide contamination of foods and feed with mycotoxins is a significant health problem as it has been estimated that 25% of the world's crops may be contaminated. Deoxynivalenol (DON) and zearalen…
Effects of biotin, folic acid, vitamin B₁₂, choline and vitamin E on turkey breeder hens (Nicholas strain) and their progeny performance were investigated. Biotin was investigated in two experiments at two dietary levels:.178 (equivalent to NRC requirement, 1984) or.75 mg/kg in …
The differentiation of Mycoplasma gallisepticum (MG) strains is important to the turkey industry in order to determine epidemilogic aspects of MG infections. Two methods of analyzing MG DNA were investigated for their suitability to differentiate MG isolates in a diagnostic envi…
Two in vivo studies were conducted to re-evaluate the calcium (Ca) and phosphorus (P) requirements of tom turkeys, from hatch to 3 weeks and 3 to 6 weeks of age, raised on litter. Results showed that turkeys fed 0.5, 0.6, or 0.7% available phosphorus (aP) had improved gain and b…