Abstract The objective of this experiment was to further investigate the effects phosphorus intake on beef heifer growth performance and conception rates. An increase in soil concentrations from use livestock manure as fertilizer Northwest Arkansas has led greater available forages. This study designed determine if supplementation is warranted when adequate exist. conducted over 2 years using t...

The objective of this study was to determine primiparous heifer performance following three different heifer development strategies that were the result of timed nutrient limitation. Two hundred eighty-two spring-born MARC III heifers were weaned at 203+/-1 d of age and 205+/-1 kg BW. The experiment was conducted on two calf crops with 120 heifers born in 1996 and 162 heifers born in 1997. Trea...

Abstract The study objective was to evaluate health, performance, and antimicrobial costs of heifers where targeted metaphylaxis guided by a commercial blood leukocyte analyzer compared traditional regimen. Using randomized complete block design, (n=1,271; initial body weight (BW) = 233.3±1.08 kg) were randomly allocated treatment pens (n=20; 10 blocks). Treatments were: 1) cattle administered ...

The goals of a dairy replacement management program are to rear heifers at a low economic and environmental cost without compromising future lactation performance. To meet these objectives, increased sophistication dairy heifer nutrition programs may be required. Research evaluating more sophisticated dairy heifer nutrition programs however does not always result in a relevant field application...

This report summarized the findings of a case of Erysipelothrix rhusiopathiae infection in a farmed Norwegian Red heifer located in the south-east of Norway. The 2.5-year-old pregnant heifer was found dead after a short episode of inappetence. On gross exam, the heifer was severely dehydrated with uterine torsion. Microscopically, necrosis of the endometrium was present throughout the uterus al...

In this study twenty-four male and female one-humped and crossbred (Camelus dromedarius and Camelus bactrianus) camel meat were evaluated during two fattening periods (6 and 9 months). The characteristics of camel meat and fatty acid profile in different parts of body (leg, shoulder, loin and neck) were measured. The results indicated that the pH ultimate of crossbred...

A target BW is often used to estimate sexual maturity in beef heifers. The target BW, a percentage of mature BW, is generally an average for the breed, herd, or both. Heifer development is done in groups or herds, and not all heifers respond similarly to the same development regimen. Generally, heifers fed at a higher plane of nutrition gain more BW and tend to have increased pregnancy rates, b...

In a previous study from 2014 it was found that US Holstein cows that gave birth to heifer calves produced more milk than cows having bull calves. We wanted to assess whether this is also true for Danish cattle. Data from 578 Danish Holstein herds were analysed with a mixed effect model and contrary to the findings in the US, we found that cows produced higher volumes of milk if they had a bull...