The objective of this study was to determine whether production and nutrient utilization differed when lactating cows were fed diets based on 1 of 3 sources of alfalfa silage (AS) and whether performance was altered by feeding rumen-protected Met (RPM; fed as Mepron). Thirty-six lactating Holstein cows were blocked by parity and days in milk, then assigned to a randomized complete block design ...

The objective of this study was to evaluate the effect of ensiling alfalfa, wheat, and corn on malate content. Samples were grown, collected, and ensiled in 7.5 L plastic buckets with airtight lids. All samples were either ensiled immediately after cutting, or wilted for at least one h between treatments. Sources of corn either were grown in drought conditions or irrigated conditions. No other ...

The study was conducted to screen high 1,2-propanediol produced by Lactobacillus buchneri strains, isolated from baled silages stored for 1 or 2 years, and evaluate their effects on fermentation quality aerobic stability of whole-plant corn silage. In total, 31 L. strains were alfalfa, oat silages. Based growth performance acetic acid production, two 9-2 10-1, alfalfa silage, further assessed i...

Sixty multiprious Holstein cows were fed treatment diets from 11 to 40 d postpartum with corn silage as the forage. Treatment diets each contained a different supplemental protein: 1) solvent soybean meal; 2) extruded soy product; 3) combination of corn gluten meal and distillers dried grains with solubles; and 4) a combination of protein sources from diets 2 and 3. Covariate adjusted means for...

Effects of Adding Different Levels Date Pulp on the Aerobic Stability, Degradability Parametrs and Nutritional Value Alfalfa Silage using Gas Production

a number of 36 holstein young bulls (initial bw of 345±61 kg) were randomly assigned to 6 dietary treatments, following a 3 × 2 factorial arrangement, with three concentrate levels of fish oil (0, 1.5 and 3 % of dm) and 2 levels of alfalfa hay versus corn silage (10 and 20 % of alfalfa hay forage versus 20 and 10 % of corn silage) were used to investigate the effect of fish oil supplementation ...

The effects of four contrasting diets were determined on populations of three species of ruminal cellulolytic bacteria (Ruminococcus albus, Ruminococcus flavefaciens, and Fibrobacter succinogenes) using oligonucleotide probes to rRNA. Diets based on alfalfa silage or corn silage as the primary fiber source were formulated to contain either 24 or 32% neutral detergent fiber measured after alpha-...

The objectives of this study were to evaluate the effects of dry matter (DM) content and three different storage systems on the quality of alfalfa ensiled on commercial farms. Alfalfa silage samples were collected from 21 bunker silos, 20 silos that limited oxygen infiltration, and 19 tower silos on 43 commercial dairy farms. Storage system and DM content were confounded because silages from bu...

Story in Brief The influence of roughage source on digestion of :1 high grain diet was measured with 24 Hereford-Angus steers. The six roughages tested were cottonseed hulls, prairie hay, alfalfa hay, sorghum plant silage and two varieties of corn plant silage. The diet consisted of 82 percent whole shelled corn, 10 percent roughage and 8 percent supplement. Daily feed intake was restricted to ...

Two feeding trials evaluated several byproducts from commercial amino acid fermentations as N supplements for lactating cows. Trial 1 was a replicated 5 x 5 Latin square that used 2-wk periods and 25 Holstein cows (five with ruminal cannulae) fed diets containing [dry matter (DM) basis] 28% alfalfa silage, 31% corn silage, 28% high moisture ear corn plus 4 percentage units of crude protein (CP)...