نتایج جستجو برای: fertilization

تعداد نتایج: 33107  

Journal: :journal of agricultural science and technology 2010
f. al-mohammadi y. al-zu'bi

this research was conducted under greenhouse conditions to evaluate the optimum combination of irrigation and fertilizer levels to attain the best yield and quality of tomato crop. the experiment was conducted by using a split-plot design with three replicates. irrigation levels were applied to the main plots and fertilizer levels to the sub-plots. for each experimental unit, the irrigation lev...

Journal: :Current Biology 2004
Barry D. Shur Carey Rodeheffer Michael A. Ensslin

fine,” says Waters. “But bustards have to be bill-fed.” After a period of quarantine in a special enclosure, they will eventually be released. The enclosure is open-topped to allow them to fly out to colonise surrounding fields. The immigrants have been taught to avoid both man and predators such as foxes using aversion therapy. Volunteers walk through the pen with dogs on leads, and if the bir...

A.A. Ibrahim, A.B. Amin B. Babandi J. Aliyu U. Ibrahim

This study was undertaken to compare the efficiency of fresh and frozen-thawed buck semen on in vitro fertilization (IVF) of goat oocytes. Cumulus oocytes complexes (COCs) were collected by aspiration of 2-6 mm diameter follicles, which were obtained from slaughterhouse. Upon grading, only normal quality COCs were maturated in TCM-199 for 48 hours. The percentage of COCs reached to the M-II sta...

Journal: :cell journal 0

introduction: the aim of this study was to evaluate the effect of sperm chromatin anomalies on fertilization outcome post icsi. material and methods: therefore along with semen parameters, cma3 staining for protamine deficiency, aniline blue staining for excessive histones, sds for sperm chromatin stability and sds+edta for ability of sperm to undergo decondensation were carried out on 55 semen...

Journal: :Journal of animal science 1999
D Rath C R Long J R Dobrinsky G R Welch L L Schreier L A Johnson

The objectives for the present experiments were to apply sperm sexing technology to an in vitro production system with porcine oocytes obtained from slaughterhouse material. On six experimental days, ovaries were obtained from an abattoir, and cumulus-oocyte-complexes were matured in vitro. Semen was collected from mature boars of proven fertility and was sorted for X-chromosome-bearing sperm, ...

Journal: :The Iowa Review 1999

Journal: :The International Journal of Developmental Biology 2008

2015
Ling-Ying Jiang Ling-Yun Yang Xiao-Mei Tong Hai-Yan Zhu Ya-Mei Xue Wen-Zhi Xu Yang Yang Song-Ying Zhang

BACKGROUND Generally, intracytoplasmic sperm injection (ICSI) may be the preferable method to treat partial globozoospermia, but whether there exist some correlations between ICSI fertilization rate and the proportion of round-headed sperm or morphologically normal sperm remains open. This study was to explore the correlation between ICSI fertilization rate and the sperm morphology in patients ...

2005
A. Chau K. M. Heinz

Fertilization levels for ornamental crops may influence pest population dynamics, crop quality, and pest management strategy. We examined the effect of fertilization on population growth and within-plant distribution of melon or cotton aphid, Aphis gossypiiGlover, on potted chrysanthemum, Dendranthema grandiflora (Tzvelev). In terms of pest management implications, we also investigated the effe...

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