Alpine forages are assumed to have specific effects on ruminal digestion when fed to cattle. These effects were investigated in an experiment from two perspectives, either by using such forages as a substrate for incubation or as feed for a rumen fluid donor cow. In total, six 24-h in vitro batch culture runs were performed. Rumen fluid was collected from a non-lactating donor cow after having ...

Lactating adenoma is one of the breast tumours associated with pregnancy. A case of lactating adenoma, unusual on account of its huge size, is presented. Large size and history of rapid growth can lead to a mistaken diagnosis of malignancy. A review of the literature of this particular tumour with the different views on its histogenesis and the differential diagnoses are also discussed.

During the past decade, fatty acid (FA) research has been focused on discovering the optimal combination of FA to feed to lactating cows for the purpose of improving milk yield (MY) and milk components. Most long chain fatty acid (LCFA) supplements contain either combinations of palmitic (C16:0) and oleic acids (C18:1), highly enriched C16:0 (>80%), or C16:0, stearic acid (C18:0), and C18:1. Th...

Lactating dairy cow diets with more than 24% starch (DM basis) are common, but recent high corn prices have fueled a desire to feed lower-starch diets. The potential for using digestible neutral detergent fiber or pectin from byproduct feeds or sugars to partially replace starch from corn grain in diets fed to lactating dairy cows was reviewed. Potential modifying effects of corn silage, starch...

Sixteen selected small-scale dairy farms were investigated in Kiambu County (Kenya) during the short rains seasonto develop a snapshot of types rations fed, milk yields obtained and sources fodder. On average farmers had1 ha land 2.2 lactating cows yielding 8.93 kg milk/cow/d with feed intake 10.5 DM/d. Only 35% feedconsumed was produced on farm. Boma Rhodes grass hay green Napier main forage c...

Our objective was to compare mammary tissue gene expression profiles during a Streptococcus uberis (S. uberis) mastitis challenge between lactating cows subjected to dietary-induced negative energy balance (NEB; n = 5) and cows fed ad libitum to maintain positive energy balance (PEB; n = 5) to better understand the mechanisms associated with NEB and risk of mastitis during the transition period...

Lipogenesis from propionate-l-Cl4 was first reported by Feller and Feist (2) in slices of liver and adipose tissue. Favarger and Gerlach (3, 4) and Masoro and Porter (5) recently studied the incorporation of propionate-1-V into fatty acids of rat and mouse adipose tissue in viva and in vitro. The incorporation of propionate, compared with that of acetate, was quite low. Favarger and Gerlach (4)...

The objective of this study was to describe the incidence of papillomatous digital dermatitis in the US (including regional and herd size patterns) and to evaluate specific herd-level management factors associated with high incidence of digital dermatitis in US dairy herds. The study design was a population-based cross-sectional survey. US dairy operations with at least 30 cows in 20 states, re...