نتایج جستجو برای: economic yield

تعداد نتایج: 502176  

In the present study a deterministic bio-economic model was used to estimate economic values for reproduction traits (conception rate, twining rate and litter size), production traits (body weight of kid sold at 6.5 months, annual cashmere weight, body weight of doe and annual milk yield) and longevity (survival of doe, survival of kid until weaning and survival of kid until sale age at 6.5 mon...

Journal: :Journal of dairy science 1994
M M Schutz

Increases in milk yield from genetic selection may be accompanied by correlated increases in genetic susceptibility to clinical mastitis and somatic cells. Unlike clinical mastitis, somatic cell scores can be easily determined and recorded and are related to milk loss from subclinical mastitis. Selection against high somatic cell scores should decrease incidence of clinical mastitis and provide...

Journal: :Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Horticulture 2014

2004
Jianping XIE Jim Yang Lee Yen Peng Ting

Much effort has been devoted to the synthesis of gold nanoparticles with different shapes, including the zero-dimensional nanospheres, one dimensional nanorods, and two-dimensional nanoplates. Compared to zero or one dimensional nanostructures, the synthesis of two-dimensional nanostructures in high yield has always been more involved, often requiring complex and timeconsuming steps such as mor...

Journal: :Field Crops Research 2021

Nutrient deficiencies limit rice production in sub-Saharan Africa. The conventional recommended remedy for this is the soil application of fertilizers composed macro-nutrients, N, P and K, whereas crop micronutrient requirements are neglected. This leads to nutrient mining diminished fertiliser use efficiency. Application micronutrients along with NPK rates can prevent boost yields. In study, w...

2012
Yun Ho Choy Byoung Ho Park Tae Jung Choi Jae Gwan Choi Kwang Hyun Cho Seung Soo Lee You Lim Choi Kyung Chul Koh Hyo Sun Kim

The objective of this study was to estimate economic weights of Hanwoo carcass traits that can be used to build economic selection indexes for selection of seedstocks. Data from carcass measures for determining beef yield and quality grades were collected and provided by the Korean Institute for Animal Products Quality Evaluation (KAPE). Out of 1,556,971 records, 476,430 records collected from ...

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