نتایج جستجو برای: chinese holstein cow

تعداد نتایج: 160043  

Journal: :The Japanese journal of veterinary research 1990
N Seike K Utaka H Kanagawa

Sixty-five chromosomal preparations from bisected bovine embryos were examined and 43 embryos (66.2%) with metaphase plates were observed; however, only 25 embryos (38.5%) were sexed. Fifteen of the bisected embryos sexed by chromosomal analysis were transferred to each of the 15 recipients, and 5 recipients became pregnant. Female calves were born on December 28, 1985, August 2, 1986 and July ...

2004
Daniel Z. Caraviello

The stress of high milk production, along with increasing herd size and changes in facilities and management, has made fertility one of the main focuses of genetic improvement today. In the US, the reduction in calving rate to first service and the impact of this decrease in fertility on the Holstein breed, mainly in the last 20 years, is of major concern [27]. Figure 1 shows the clear trend fo...

2017
Christa A. Rice Nicole L. Eberhart Peter D. Krawczel

Utilizing pasture-based systems may increase cow comfort during late gestation and calving as it lacks the constraints of confinement housing. The objective of this study was to quantify lying behavior and activity of Holstein dairy cows housed on pasture during the 6 d before calving. Sixteen Holstein dairy cows were moved to pasture 3 weeks before their projected calving date. Data loggers we...

Journal: :پژوهش های علوم دامی ایران 0
محمد خوروش حسین یزدانی احسان محجوبی رسول کوثر غلامرضا قربانی

in order to examine the effect of using rumen protected methionine (mepron, evonik industries, hanau, germany) on productive and reproductive performance under field condition, 195 holstein cows were used in a unbalanced completely randomized design and 2 groups. experimental treatments consisted of: 1) control group with 110 holstein dairy cows (71±51 dim and 47.5±12 milk yield) and without me...

2013
Shan Wang Francis Bond

Princeton WordNet (PWN) is one of the most influential resources for semantic descriptions, and is extensively used in natural language processing. Based on PWN, three Chinese wordnets have been developed: Sinica Bilingual Ontological Wordnet (BOW), Southeast University WordNet (SEW), and Taiwan University WordNet (CWN). We used SEW to sense-tag a corpus, but found some issues with coverage and...

2014
A. M. Mwanza

A 5-year-old Holstein-Friesian cow was presented with a primary problem of difficult in parturition (Dystocia). This was the third calving for the cow. A disoriented foetus was palpated per rectum, and on vaginal examination the head of the foetus was palpated which was ventral to the body of the foetus. A caesarotomy (caesarean section) was performed which aided in the diagnosis of a shistosom...

2014
Hossein Nourani Iraj Karimi Hossein Rajabi Vardanjani

Synophthalmia is a form of cyclopia, in which some elements of two eyes are fused and form a single eye in the middle region of the forehead. The head of a Holstein female calf born from a 5-year-old cow was referred to Department of Pathology, School of Veterinary Medicine, Shahrekord University due to multiple congenital anomalies. The calf had been slaughtered immediately after birth due to ...

Journal: :Journal of dairy science 2009
E Kramer E Stamer J Spilke G Thaller J Krieter

The objective was to evaluate 6 different lactation curve models for daily water and dry matter intake. Data originated from the Futterkamp dairy research farm of the Chamber of Agriculture of Schleswig-Holstein in Germany. A data set of about 23,000 observations from 193 Holstein cows was used. Average daily water and dry matter intake were 82.3 and 19.8 kg, respectively. The basic linear mixe...

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