An experiment was conducted to investigate the effects of supplementing Lori ewes with rumen-undegradable protein (RUP) in late pregnancy on their performance and that of their lambs. Milk yield and blood metabolite profile were measured. Forty pregnant ewes were used in a completely randomized design trial with four treatments: 1) a basal diet (control); 2) with a supplement of 5% fishmeal; 3)...

The effects of condensed tannins (CT) in fresh Sulla (Hedysarum coronarium) on the net flux of skatole and indole from the gastrointestinal tract to the mammary gland were investigated in ewes during mid to late lactation. Twelve ewes were prepared with catheters in the mesenteric artery and the mesenteric, portal, hepatic and mammary veins. A transonic flow probe was fitted around the pudic ar...

Although it has long been known that there are seasonal variations in the chemical characteristics of butterfat, it has as yet not been possible to assess the relative importance of nutritional and lactational influences. Moreover, in the Northern Hemisphere the problem is further complicated by the climatic effects, which necessitate the maintenance of cows indoors during the colder months, th...

the stability of milk production, quality and content of recombinant human factor viii (rhFviii) in transgenic rabbits was determined. transgenic rabbits carrying the mouse whey acid protein promoter (mWaP) and human factor viii gene (hFviii) were born after mating of transgenic and non-transgenic rabbits. PCr analysis of samples from F4 generation showed that the transgene was transmitted. Mil...

BACKGROUND A single prolonged milking interval (PMI) e.g. after a technical stop in an automated milking system is of concern for the producer since it is associated with a short-lasting increase in milk somatic cell count (SCC), which is a major quality criterion used at the dairy plants. The content of polymorphonuclear leukocytes (PMN) and how the milk quality is influenced has not been much...

The experiment involved 40 mid-lactating Comisana ewes. The animals were housed in straw-bedded pens and assigned to a control group (n = 10) and two test groups of 15 subjects each. Control ewes were never moved from their pen and peers throughout the experiment period, whereas test animals were subjected to either regrouping (RG) or regrouping and relocation (RGRL) three times at weekly inter...

More than 80% of the milk stored in the udder, i.e. the alveolar fraction, only available after milk ejection is induced by the release of oxytocin and myoepithelial contraction. Milk ejection is induced by tactile teat stimulation, either manually or by the milking machine. The time from the start of a tactile stimulation until the occurrence of milk ejection spans from 40 s up to more than 2 ...

The objectives were to compare milk production and composition, change in body weight and body condition score, rumen fermentation parameters and grazing patterns by cows when supplemented with different forms and amounts of corn grain. In experiment 1, 36 Holstein cows were supplemented with either 6, 6, 6, or 4 kg/d of dry matter of high moisture corn, coarsely ground corn, finely ground corn...