pregnancy rate is one of the most important factors determining profit or loss. Considerable emphasis and focus is placed on the nutritional and reproductive management of the cow herd; but, unfortunately, in most operations little emphasis is placed on the bull. However, each bull is expected to impregnate from 15 40 females during the breeding season in a typical cow-calf operation and, thus,...

To determine the effects of cow biological type on colour stability of ground beef, M. semimembranosus from beef-type (BSM) and dairy-type (DSM) cows was obtained 5d postmortem. Three blends (100% BSM, 50% BSM+50% DSM, 100% DSM) were adjusted to 90% and 80% lean points using either young beef trim (YBT) or beef cow trim (BCT), then packaged in high oxygen (High-O(2); 80% O(2)) modified atmosphe...

Dietary constituents can affect cow acid-base physiology and uterine pH. Dietary cation-anion difference (DCAD) has been shown to affect cow acid-base physiology, but the effect on uterine pH has not been demonstrated. The objective of this work was to determine if DCAD [(Na + K + 0.15Ca + 0.15Mg) - (Cl + 0.60S + 0.50P)] could affect cow DMI, acid-base physiology, and uterine pH, and second, to...

A well-known dairy scientist once wrote that "compared with an effective environmental management system, manipulation of the cow's diet specifically for heat stress will have a relatively small effect on productivity" (Beede and Shearer, 1992). Indeed many dietary adjustments made during heat stress feeding are to compensate for reduced feed intake or to maintain physiologic homeostasis in the...

The effects of natural traditional energy sources which is called biomass, mainly cowdung, on pulmonary function was investigated. In rural regions of Sivas City, pulmonary function tests of 112 cow-dung users and 153 modern energy source users were compared. When comparing the mean values of spirometric measurements of two groups' males and females seperately, all the spirometric parameters of...

This paper report of a fatal case of post parturient uterine Prolapse in a six year old pluriparous, Sokoto Gudali cow. The prolapse of the uterus is believed to be a common complication of the third stage of labour in the cow. The case being reported occurred some hours after a normal parturition. The uterus everted with the foetal membranes and some pockets of foetal fluids. About three ruptu...

The ESR radiation dosimetric properties of tooth enamel samples from cows and goats were investigated and compared with those of human samples. Samples were prepared first mechanically, and then chemically. The study results showed that the native signals from cow and goat samples were weaker than those from human samples; the radiation sensitivities for cow and goat samples were very close to ...

TAKE HOME MESSAGES: 1. Average milk yield was similar for cows in ADS-ST or KK (91.2 vs. 93.0 lbs/d) pens. 2. 1st lactation heifers in the KK pen tended to produce more milk (83.4 vs. 81.0 lbs/d). 3. The initial investment for the ADS-ST was less ($58,500 vs. $118,067). a. ADS-ST = $234/cow vs. $472/cow for the KK coolers. 4. ADS-ST used less electricity, water and had lower daily costs ($27.30...

The cholesterol content in cow milk is influenced by both genetic and environmental factors. Despite the fact that the main part of cholesterol contained in milk is synthesised endogenously, via process independent of the offered diet type, the chemical composition of feed (especially fat) affects the content of this sterol in cow milk (Precht, 2001). The content of cholesterol in cow milk is r...

In milk processing, special emphasis is directed to fostering the taste and healthy values of goat milk. Therapeutic properties of goat milk are very well known. Comparison of cow and goat milk at the level of chemical composition suggests significant differences in their physical and chemical characteristics. Smaller diameter of fat globules (natural homogeneity), high portion of essential ami...