نتایج جستجو برای: first parity holsteins
تعداد نتایج: 1461558 فیلتر نتایج به سال:
In dairy cattle, the increase in milk yield has been accompanied by a more negative energy balance during early lactation and a decrease in fertility. The 167 amino acid protein product of the ob gene was named leptin (derived from the Greek term ‘leptos’ meaning thin). The leptin hormone, as a 16-kDa protein is synthesized mainly by adipose tissue and is involved in regulation of food intake, ...
Background: A variable hematological value without clinical sign of sepsis or hematological disorder is often observed in newborns. The purpose of this study was to investigate hematological measurements in umbilical cord vein of newborns delivered spontaneously or by cesarean section. Methods: We studied 150 pregnant women who delivered term normal infants. The patients were divided into two ...
In dairy cattle, the increase in milk yield has been accompanied by a more negative energy balance during early lactation and a decrease in fertility. The 167 amino acid protein product of the ob gene was named leptin (derived from the Greek term ‘leptos’ meaning thin). The leptin hormone, as a 16-kDa protein is synthesized mainly by adipose tissue and is involved in regulation of food intake, ...
Introduction & Objective: The coronary artery disease (CAD) is the second cause of mortality in women over 40. The risk factors of CAD in females include: age over 55, BP>140/90, smoking and hyperlipidemia. As plasma lipoprotein level changes significantly during pregnancy, low density lipoprotein reaches its peak approximately in the week 36 of pregnancy. Hypercholesterolemia induced by pregna...
some factors affecting crude protein balance (cpb), as a measure of efficiency, were studied using 2824 records of 501 lactating holstein cows. the cpb (kg d-1) was calculated as crude protein (cp) intake (kg) minus cp yield (kg). two different statistical methods including principal components (pcs) and general linear model analyses were used to study the effects of different factors. crude pr...
Canonical (logic) programs (CP) refer to normal logic programs augmented with connective not not. In this paper we address the question of whether CP are succinctly incomparable with propositional formulas (PF). Our main result shows that the PARITY problem, which can be polynomially represented in PF but only has exponential representations in CP. In other words, PARITY separates PF from CP. S...
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