Enteric disorders are becoming of increasing concern to the poultry industry. The causative agents of enteric diseases in turkeys include bacteria, viruses, parasites and antinutritional factors present naturally in feedstuffs. There were two general objectives of research repor…
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Semen quantity (volume) and quality (concentration, total number of sperm, percent of live sperm, total number of live sperm, and/or motility) were analyzed in male turkeys from 10 weeks of age to over one year of age in three experiments. The key variable in each of the three s…
Experiments were conducted to study the effects of selection and of genotype-environment (G x E) interactions on performance, behavior, and well-being of turkeys. The effects of selection were studied in lines of turkeys selected long-term for increased body weight (F line), inc…
Seven hundred and twenty female and 900 male day-old poults from three Large White turkey strains, Mile High 170 (MH-170), Nicholas (N) and Orlopp 61 (0-61), were used in two experiments conducted to study the influence of Ca and P regimen and strain on performance and bone meta…
The purpose of this study was to determine the effects of different light regimes on molting in growing turkeys and chickens. Two groups of Beltsville Small White turkeys were reared from 3 to 24 weeks of age under two extremes of artificial light; one group received 10 hours an…
A single trait random regression animal model was applied to test day (TD) records for milk and fat yields for estimating genetic parameters and genetic evaluation. The estimated heritabilities from random regression TD models (RR-TD) were higher than those estimated from 305-d …
An experiment was conducted involving 360 large white turkeys of mixed sex, raised in floor pens. The purpose of the experiment was to determine the effect of dietary lactose on the performance of turkeys and to determine the optimum amount of lactose inclusion in the diet. Ther…
Two studies were conducted to investigate the effects of strain or photostimulation program on the reproductive development of female turkeys. In trial I male line and female line birds were killed for assessment of reproductive organ morphology at 3 d intervals following photos…
These studies were conducted to evaluate both ante-mortem and post-mortem conditions influencing PSE development in turkeys and to evaluate the efficacy of the neuromuscular depolarizing agent, succinylcholine (SC), in identifying abnormal animals by inducing PSE meat in birds s…
Experiments were conducted to determine whether feeding diets of different ingredient composition to poults could reduce severity of experimentally-induced stunting syndrome (SS). One-day-old poults were dosed per os with either saline or an inoculum of a homogenate prepared usi…
Genetic analysis was conducted on experimental and commercial turkey lines using molecular biological techniques to measure genetic parameters. Four experimental lines, eleven commercial lines, and wild turkeys were used in restriction fragment length polymorphism (RFLP) analysi…
A total of six experiments were conducted to evaluate the effects of supplementing specific nutrients including menhaden fish meal (MFM), spray-dried plasma (SDP), glutamine (GLN), glutamate (GLU), monosodium glutamate (MSG), nucleotides (NUC), and a hatchling supplement (Oasis)…
A conservação dos carnívoros é considerada prioritária devido à importância destes para os ecossistemas e à ameaça séria de extinção que enfrentam em todo o mundo. Jaguares (Panthera onca) e pumas (Puma concolor), os maiores felinos do Brasil e das Américas, estão em declínio de…
Analysis was performed on data from cows born between 1984-1994 in five government dairy herds in Malaysia. Study objectives were to; (i) describe herd performance for reproductive and production indices, (ii) investigate associations between birthweight, age standardized weight…
When ruminants are consuming dormant forage or diets that are high in cereal grains but low in forage, the ruminal microbes may experience growth conditions with excess carbohydrate and limiting nitrogen. To overcome these inadequacies, cattle are provided protein supplements fo…
Sixteen Arabian yearlings were randomly assigned to two experimental groups, stalled and pastured, to investigate the effects of stalling versus pasture-rearing on bone growth over a 140-day period. Following an 84-d pre-training period, six horses from each group were randomly …
Meat and bone meal and poultry by-product meal are common by-product used in poultry rations. Unfortunately, the quality of meals varies greatly, making it difficult to precisely measure the nutrient availability. The variability of the above mentioned by-product meals has made …