An experiment was conducted to investigate the effects of temperature, feed fat content and dietary oil source on growth and nutrient utilisation of Atlantic salmon parr (f 19 g). The fish were reared in freshwater at 2 or 8 jC for 6 months at light/dark cycles of 12 h:12 h. Each of four feeds was provided to triplicate groups of fish at each temperature. The feeds were formulated with marine f...

Effects of replacing canola meal with dehulled hemp in the diet lactating dairy cows on dry matter intake (DMI), milk production, fatty acid profile, blood metabolites, total-tract nutrient digestibilities, and transfer cannabinoids were determined 12 lactating, non-pregnant Holstein cows. These used a 3 × Latin Square design 3, 3-wk experimental periods, consisting 2 wk adaptation 1 sampling. ...

This experiment aimed to evaluate the effects of dietary starch-to-fat ratio on reproductive performance and lipid metabolism sows newborn piglets. A total 75 Landrace × Yorkshire multiparous at d 84 gestation were selected randomly divided into three groups based body weight. From 85 farrowing, fed one ratios (20:1, 10:1, 5:1). Dietary high increased birth weight piglets (p < 0.05). The app...

An incomplete 8 x 8 Latin square trial (4-wk periods; 12 wk total) using 32 multiparous and 16 primiparous Holstein cows was conducted to assess the production response to crude protein (CP), digestible rumen-undegraded protein (RUP), and rumen-protected Met (RPM; fed as Mepron; Degussa Corp., Kennesaw, GA). Diets contained [dry matter (DM) basis] 21% alfalfa silage, 34% corn silage, 22 to 26% ...

Meat and bone meal is a valuable protein and mineral source in diets of production animals and contributes to the protein, energy and mineral component of diets. The aim of the present study was to more accurately characterise the apparent ileal amino acid digestibility of meat and bone meals produced in New Zealand and evaluate routine in vitro assays used in practise to measure meat and bone ...

Five steers (average 526 kg) fitted with ruminal, duodenal, and ileal cannulas were used in a 5 x 6 Youden square design with 14-d periods. Diets contained chopped alfalfa hay, corn silage, and concentrate (25:35:40, DM basis). Treatments were 1) control (no added fat), 2) tallow (T), 3) partially hydrogenated tallow (PHT), 4) hydrogenated tallow (HT), 5) blend (1:1) of HT and hydrogenated free...

Three experiments were conducted to evaluate supplementation of dried distillers grains with solubles (DGS) to spring-calving beef cows (n = 120; 541 kg of initial BW; 5.1 initial BCS) consuming low-quality forage during late gestation and early lactation. Supplemental treatments included (DM basis) 1) 0.77 kg/d DGS (DGSL); 2) 1.54 kg/d DGS (DGSI); 3) 2.31 kg/d DGS (DGSH); 4) 1.54 kg/d of a ble...

1. To examine the relations between short- and long-term regulation of food intake in calves given milk-substitute diets, abrupt changes were made in the dry matter (DM) concentration of the diet (Expt 1) and in the frequency of feeding (Expts 2 and 3). 2. When calves, fed once daily, had the DM concentration of their diet changed, they drank the same volume of milk on the 1st day they received...

A total of 50 weaning pigs (16 d of age; 4.72 +/- 0.23 kg of BW) were selected to investigate the effect of dietary chito-oligosaccharide (COS) supplementation on growth performance, fecal shedding of Escherichia coli and Lactobacillus, apparent digestibility, and small intestinal morphology. Pigs housed in individual metabolic cages were assigned randomly to 5 treatments (n = 10), including 1 ...