This study assessed the influence of cattle genotype and diet on the carriage and shedding of zoonotic bacterial pathogens and levels of generic Escherichia coli in feces and ruminal contents of beef cattle during the growing and finishing periods. Fifty-one steers of varying proportions of Brahman and MARC III [0 (15), 1/4 (20), 1/2 (7), and 3/4 Brahman (9)] genotypes were divided among 8 pens...

We conducted two experiments to evaluate the effects of dietary energy density and lysine:calorie ratio on the growth performance and carcass characteristics of growing and finishing pigs. In Exp. 1, 80 crossbred barrows (initially 44.5 kg) were fed a control diet or diets containing 1.5, 3.0, 4.5, or 6.0% choice white grease (CWG). All diets contained 3.2 and 2.47 g of lysine/Mcal ME during gr...

Two experiments were conducted over two years to evaluate the effect of including Optaflexx® 45 in cull cow finishing diets on performance, carcass characteristics, and carcass value. Experiment 1 evaluated the inclusion of Optaflexx® 45 in the diet, whereas Experiment 2 evaluated different inclusion concentrations in the finishing ration. In each experiment crossbred cows (Experiment 1, n=93; ...

To improve the growth performance of growing-finishing pigs and maximize economic returns for summer marketing, producers can feed increased dietary energy while are still in their dependent phase. Removal high-fiber ingredients such as dried distillers’ grains with solubles increase gain. During when intake is low, formulating diets at or slightly above amino acid requirements may be beneficia...

The effects of the carbohydrate composition of finishing diet (fed from 80 to 107 kg of body weight) and the length of pre-slaughter fasting on pork quality were studied in a 2 × 2 factorial experiment with 80 crossbred pigs. The control finishing diet was based on barley and soybean meal, and the fibrous finishing diet was based on barley, barley fibre, faba beans, and rapeseed cake. These die...

An experiment was conducted to determine the long-term effects of dietary boron (B) on growth performance, immune function, and plasma and serum characteristics in gilts. Fifty weanling gilts were allotted to 10 pens based on weaning weight and litter origin. Pens were randomly assigned to receive one of two dietary treatments. Treatments consisted of a basal diet low in B (control) and the bas...

An experiment was conducted to determine growth performance, carcass characteristics, and fat quality of growing-finishing pigs fed diets based on short-season corn hybrids. Twenty-four individually housed, Cotswold, growing pigs with an initial BW of 41.4 (SD = 1.4) kg were blocked by BW and sex and randomly allotted from within block to 1 of 3 diets to give 8 replicate pigs per diet. Experime...

Abstract A study was conducted to identify the effects of standardized ileal digestible (SID) branched-chain amino acids (BCAA):lysine (Lys) ratios on growth performance, plasma nitrogen (N) profile, carcass traits, and economic analysis growing–finishing pigs fed diets with high corn distillers dried grains solubles (cDDGS) inclusions. total 1,140 (initial body weight [BW] = 28.7 ± 2.0 kg) wer...