Some non-genetic factors affecting commercial pig production in Zimbabwe

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Non Regulatory Constrants Affecting Pig Industry in Zimbabwe

This study was done to review the status of pig industry in Zimbabwe and find out the non-regulatory constraints to production and marketing using a value chain approach. The study used literature and secondary data from stakeholders and service providers as well as primary data collected through key informant interviews and focus group discussions. Data were analyzed mainly by value chain mapp...

متن کامل

Non-Genetic Factors Affecting Grasscutter Production Traits. 1. Growth Traits

This study was conducted at the grasscutter section of the University of Education, Winneba, Ghana, to estimate effects of non-genetic factors on growth traits. Data consisted of records of 502 kids born from 136 does and 40 sires from 2006 to 2010. Feed intake increased (P<0.01) with increasing parity and years, whilst feed efficiency declined (P<0.01) with years. Animals consumed less (P<0.01...

متن کامل

Genetic and Non-genetic Factors Affecting Some Reproduction Traits in Tharparkar Cattle

A total of 1385 lactation records of Tharparkar cattle collected from LRS Chandan, Jaisalmer spreading over a period of 33 years were utilized to assess the effects of period and season of birth/calving on age at first calving, calving interval and service period and also studied effect of parity on calving interval and service period. The least-squares means were 1821.86 ± 37.022 days, 414.16 ...

متن کامل

Non-Genetic Factors Affecting Stillbirth and its Effects on Longevity, Production, and Reproductive Performance in Holstein Cows of Iran

The aim of this study was to determine the factors affecting stillbirth and the consequences of stillbirth on longevity, production, and reproductive performance in Holstein cows of Iran. Calving records from March 2000 to April 2009 comprising of 220,043 calvings on 102,199 cows in 33 herds were used. The results showed that 4.06% of the newborn calves died within 48 h of birth. The stillbirth...

متن کامل

Genetic variation at RYR1, IGF2, FUT1, MUC13, and KPL2 mutations affecting production traits in Chinese commercial pig breeds

The identification of causative mutations affecting economically important traits has benefited the worldwide pig industry. We investigated the genetic variation at five loci including RYR1, IGF2, FUT1, MUC13, and KPL2 affecting traits related to production, reproduction, and disease resistance in a sample of 8009 pigs representing 3 commercial breeds (Duroc, Landrace, and Large White) from 28 ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: South African Journal of Animal Science

سال: 2009

ISSN: 2221-4062,0375-1589

DOI: 10.4314/sajas.v29i3.44202