This work was carried out to evaluate the effect of pasture feeding on buffalo meat quality compared with buffaloes reared intensively with the use of corn silage as a forage base or alternatively with polyphite meadow hay.
 
  Thirty Mediterranean bull buffaloes were distributed into three experimental diet groups maize silage (MS), polyphite meadow hay (PH) and pasture (PA). The animals were slaughtered at a live weight of 250 kg, and carcass and meat quality were evaluated. After 7 days of ageing, physical and chemical parameters of longissimus thoracis muscle were determined. To evaluate shelf life, malondialdehyde (TBARS) was tested at 7 and 14 days, and the fatty acid profile was recorded by gas chromatography.
 
  The pasture group, even if it showed carcass parameters lower than those of the silage maize group, reported a good meat percentage (60.59% vs 58.46% respectively) and lower fat percentage (p<0.001). Pasture-fed animals showed meat redness, and even if only on raw meat, shear force was higher than the others. Low values of CLA, PUFA and n-3 were reported in the silage maize group. PCA clearly showed the influence of different diets on meat quality, and PCA1 and PCA2 explained 82% of the variability.
 
  Buffaloes reared on pasture had meat with high nutritional value even if they showed poor carcass performance compared to the animals fed on maize silage. Buffaloes fed on polyphite hay were in an intermediate position, similar to grazing animals, according to the same nutritional determinations.
 Buffaloes reared on pasture had meat with high nutritional value even if they showed poor carcass performance compared to the animals fed on maize silage. Buffaloes fed on polyphite hay were in an intermediate position, similar to grazing animals, according to the same nutritional determinations.
  Bioactive compounds in the ruminant products are related to functional compounds in diets. Therefore, this study aimed to explore the effect of forage sources, Italian ryegrass (IR) silage vs corn silage (CS) in the total mixed ration (TMR), on milk production, milk composition, and phytanic acid content in milk, as well as on the extent of conversion of dietary phytol to milk phytanic acid.
 
  Phytanic acid content in milk was investigated for cows fed a TMR containing either IR silage or corn silage using 17 cows over three periods of 21 days each.  https://www.selleckchem.com/products/pds-0330.html  In periods 1 and 3, cows were fed corn silage-based TMR (30% corn silage), while in period 2, cows were fed IR silage-based TMR (20% IR silage and10% corn silage).
 
  The results showed that there were no differences in fat, protein, lactose, solids-not-fat, somatic cell count, and fatty acid composition of milk among the three experimental periods. There were no differences in the plasma concentration of glucose, triglycerides, total cholesterol, and nonesterifi content in diets. However, phytol might not be completely metabolized in the rumen and phytanic acid, in turn, might not be completely recovered into cow's milk. The change of phytanic acid content in milk may be positively correlated with the change of phytol in the diet within a short time.
  In most retail centers, primal pork cuts for sale are usually prepared into retail-ready slices and overwrapped with air-permeable plastic film. Also, meat of Korean native black pig (KNP) is reputed for its superior quality, however, its shelf life during retail display has not been studied. Thus, the objective of this study was to evaluate shelf life of prepackaged retail-ready KNP belly and shoulder butt slices during refrigerated display.
 
  Bellies and shoulder butt obtained at 24 h post-mortem from finishing KNP were used. Each belly or shoulder butt was manually cut into 1.5 cm-thick slices. The slices in each cut type were randomly taken and placed on white foam tray (2 slices/tray) overwrapped with polyvinyl chloride film. The retail-ready packages were then placed in a retail display cabinet at 4oC. Shelf life and sensory quality of the samples were evaluated on day 1, 3, 6, 9, 12 and 15 of display.
 
  The shoulder butt reached the upper limit (20 mg/100g) of volatile basic nitrogen (VBN) for fresh meat after 9 days while, the belly remained within this limit throughout the display time (15 days). Both the cuts reached a thiobarbituric acid reactive substances (TBARS) level of above 0.5 mg MDA/kg after 9 days. The a* (redness) values remained unchanged during first 9 days in both cuts (p>0.05). After 9 days, off-flavor was not found in either cut, but higher off-flavor intensity was found in shoulder butt after 12 days. The shoulder butt was unacceptable for overall eating quality after 12 days while, belly still was acceptable after 12 days.
 
  The belly showed a longer shelf life compared to the shoulder butt, and a shelf life of 9 and 12 days is recommended for the prepackaged retail-ready KNP shoulder butt and belly slices, respectively.
 The belly showed a longer shelf life compared to the shoulder butt, and a shelf life of 9 and 12 days is recommended for the prepackaged retail-ready KNP shoulder butt and belly slices, respectively.
  A trial was conducted to investigate the effects of supplemental levels of Mn provided by organic and inorganic trace mineral supplements on growth, tissue mineralization, mineral balance, and antioxidant status of growing broiler chicks.
 
  In total, 500 8-d-old male chicks were used in 10-day feeding trial, with 10 treatments and 10 replicates of 5 chicks per treatment. A 2 x 5 factorial design was used where supplemental Mn levels (0, 25, 50, 75, and 100 mg Mn/kg diet) were provided as MnSO4.H2O or MnPro. When Mn was supplied as MnPro, supplements of zinc, copper, iron, and selenium were supplied as organic minerals, whereas in MnSO4.H2O supplemented diets, inorganic salts were used as sources of other trace minerals. Performance data were fitted to a linear-broken line regression model to estimate the optimal supplemental Mn levels.
 
  Manganese supplementation improved body weight (BW), average daily gain (ADG) and feed conversion ratio (FCR) compared with chicks fed diets not supplemented with Mn. Manganese in liver, breast muscle, and tibia were greatest at 50, 75, and 100 mg supplemental Mn/kg diet, respectively.