A 90 d study was designed to investigate the effects of rumen undegradable protein (RUP) and a mixture of Cu, Zn and Mn proteinate (CZMP) on milk yield and composition and ovarian functions during rainy months. Twenty four Holstein× indigenous cows in their 2nd and 3rd lactation were randomly allocated to total mixed rations (TMR) containing soy bean meal (SBM) as a source of rumen degradable p...

The objectives of this study were to (1) determine the effect exogenous fibrolytic enzyme derived from Trichoderma reesei on dry matter (DM) and neutral detergent fibre (NDF) degradability whole plant faba bean silage (Snowbird), (2) evaluate effects (FETR) DM NDF degradation kinetics silage, (3) compare difference between in vitro approach (DaisyII incubation method) situ assay-biological (nyl...

Energy-rich diets can challenge metabolic and protective functions of the rumen epithelial cells, but the underlying factors are unclear. This study sought to evaluate proteomic changes of the rumen epithelium in goats fed a low, medium, or high energy diet. Expression of protein changes were compared by two-dimensional differential gel electrophoresis followed by protein identification with ma...

The rumen is arguably the most important organ in the ruminant digestive system. Ruminal microbial protein and volatile fatty acid (VFA) synthesis supply most of the protein and energy needs of the ruminant. Rumen function problems can reduce intake, digestion, and health of ruminants and culminate in death. Furthermore, inefficient rumen function reduces animal performance and health and contr...

This study was conducted to investigate the effect of decreasing concentrations dietary neutral detergent fiber (NDF) at high rumen undegradable protein (RUP) on performance, digestibility, chewing activity, blood attributes, and carcass characteristics in 32 weaned male Afshari lambs (90 days age; 26 kg initial body weight; BW). Dietary metabolic energy (ME) increased from 10.6–11.5 11.8 MJ/kg...

this study was conducted to determine in vitro crude protein degradation (ivdp) parameters and effective crude protein degradability (epd) of various feeds using the modified in vitro gas production (gp) technique. feed samples were alfalfa hay, soybean meal, soybean, rapeseed meal, sunflower meal and fish meal. rumen fluid was collected before the morning feeding from four rumen fistulated lam...

Pastoral agriculture in New Zealand has a long history of improving the efficiency with which fresh pasture is converted into meat, wool and dairy products. New Zealanders live in a temperate climate where rainfall and pasture growth are the main driving forces in low-input pastoral systems. The process whereby protein in fresh pasture is broken down in the rumen and reassimilated into microbia...