Showing papers in "Journal of Dairy Science in 2005"

TL;DR: It was concluded that optimum bacterial growth in the rumen occurs when EMPS is 29 g of bacterial N/kg of fermented organic matter, and ENU is 69%, implying that bacteria would require about 1.31 x rumen-available N per unit ofacterial N.

TL;DR: Broadening of breeding goals through recent changes to selection indices decreased the similarities of top bull listings across the various countries, with a slightly greater commonality among sires of top bulls.

TL;DR: It is demonstrated that cows can experience oxidative stress during the peripartum period, and cows with higher BCS and greater BCS losses are more sensitive to oxidative stress.

TL;DR: It is suggested that strains of lactobacilli could remove cholesterol via various mechanisms and may be promising candidates for use as a dietary adjunct to lower serum cholesterol in vivo.

TL;DR: Strategic use of metabolic tests to monitor transition dairy cows should focus on NEFA in the last week prepartum and BHBA in the first week postpartum.

TL;DR: Subacute ruminal acidosis was induced in 3 rumen fistulated Jersey steers by offering them different combinations of wheat-barley pellets and chopped alfalfa hay and activated a systemic inflammatory response in the steers.

TL;DR: The health-beneficial components of bovine MFGM, including phospholipids as agents against colon cancer, gastrointestinal pathogens, Alzheimer's disease, depression, and stress, compel us to consider bovines MFGM as a potential nutraceutical.

TL;DR: This review summarizes the available information on methods and procedures used for research on methods for screening of EPS-producing LAB, detection of the ropy phenotype, and the physicochemical and structural characterization of these molecules, including parameters related to their viscosifying properties.

TL;DR: Plasma acetate and beta-hydroxybutyrate decreased, whereas glucose, nonesterified fatty acids, and leptin increased with high-concentrate diets, and milk fat depression was observed when HC induced an increase in trans10-18:1 yield.

TL;DR: The ingestion of probiotics reduced the percentage of calves that required therapy and the amount of treatments needed against digestive or respiratory diseases, and there was no clear difference in the efficiency of the MSPB and CSPB preparations.

TL;DR: It is demonstrated that increasing the peNDF content of diets increased chewing time, butIncreased chewing time did not necessarily reduce ruminal acidosis, and models that predict rumen pH should include both peN DF and fermentable OM intake.

TL;DR: Genetic correlations among traits indicated that different traits measured different aspects of reproductive performance of a dairy cow could be used jointly in a fertility index to allow for selection for better fertility of dairy cattle.

TL;DR: The results indicate that frequent delivery of feed improves access to feed for all cows, particularly during peak feeding periods when fresh feed is provided, and reduces the amount of feed sorting.

TL;DR: The ability of GAR, DAD, and ALM to decrease methane production is confirmed, which may help to improve the efficiency of energy use in the rumen.

TL;DR: Documented changes in standing behavior suggest that cow comfort may be particularly important during the time around calving, and changes in feeding behavior may help account for the well-documented changes in feed intake during transition.

TL;DR: T and S management schemes had similar effects on DMI, SCM, and metabolic variables in the first 70 d of the subsequent lactation, and Eliminating the DP improved energy and metabolic status.

TL;DR: The results of this study indicate the necessity for active management of the rate of inbreeding in the future and indicate the need for low levels of genetic diversity in Holstein and Jersey.

TL;DR: It is suggested that antibiotics are used extensively on dairy herds for both therapeutic and prophylactic purposes, and beta-lactams and tetracyclines were the most widely used antibiotics.

TL;DR: The CIN and GAR resulted in similar effects as monensin, with the exception of the effects on the molar proportion of butyrate, which suggests that they might have a different mode of action in affecting in vitro microbial fermentation.

TL;DR: The regression equations provide improved predictions of excretion and enable more accurate planning of manure storage and nutrients to be managed at the farm level.

TL;DR: Dairy cattle are considered reservoirs of STEC and can impose a significant health risk to humans, and the global nature of food supply suggests that safety concerns with beef and dairy foods will continue and the challenges facing the dairy industry will increase at the production and processing levels.

TL;DR: Replacing default NRC degradation rates for protein supplements with rates measured in vivo resulted in similar observed and predicted values, suggesting that in situ degradation rates used by the NRC are slower than apparent rates in this study.

TL;DR: The fat globules are larger in early colostrum than in transitional and mature human milk and in contrast with the small-sized fat droplets in infant formula, which can be of nutritional significance for the infant.

TL;DR: Improvements to the efficiency of dietary nitrogen use by lactating dairy cattle can be made by altering the concentration and form of protein in the diet, and increasing CT content of the dietary forage legume component resulted in a shift in N excretion from urine to feces.

TL;DR: It is indicated that the delivery of fresh feed has a greater impact on stimulating feeding behavior than does the return from milking and that changes in feeding management can affect both the feeding and lying behavior of dairy cows.

TL;DR: In this article, an HPLC method using an evaporative laser light-scattering detector was developed, which enabled excellent separation of glucosylceramide, lactosylaceramide, and lysophosphatidylcholine in less than 21 min.

TL;DR: A potent angiotensin-converting enzyme (ACE)-inhibitory activity was found in a commercial kefir made from caprine milk, and low molecular mass peptides released from caseins during fermentation were mainly responsible for this activity.

TL;DR: Silages treated with LLB4, SB, and PSE had the highest concentrations of water-soluble carbohydrates, the greatest recoveries of DM, and the lowest concentrations of ethanol, andYeasts were undetected in all silages except in silage treated with B5, which had the poorest aerobic stability of all treatments.

TL;DR: The first spontaneous ovulation in anovular cows and a higher level of milk production for 14 d preceding estrus were associated with increased multiple ovulation rate, and cows with multiple ovulations had lower estradiol at estrus, a shorter duration ofEstrus, and lower progesterone at 7 d after estrus than cows with single ovulations.

TL;DR: The results indicate that the optimum strain of Holstein-Friesian cows (HF) will vary with feed system, and there was a strain x FS interaction for yield of milk, fat, and protein.