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5.796  Articles
1 of 581 pages  |  10  records  |  more records»
Article Details: Received: 2018-09-10 | Accepted: 2018-10-25 | Available online: 2018-09-31https://doi.org/10.15414/afz.2018.21.03.119-124The aim of this study was to analyse several genetic and non-genetic factors that can affect the calving difficulty o... see more

To evaluate effect of dystocia on the lactation curve characteristics for milk yield and composition in Holstein cows, six non-linear models (Brody, Wood, Sikka, Nelder, Dijkstra and Rook) were fitted on 5,917,677 test day records for milk yield (MY), fat... see more

To evaluate effect of dystocia on the lactation curve characteristics for milk yield and composition in Holstein cows, six non-linear models (Brody, Wood, Sikka, Nelder, Dijkstra and Rook) were fitted on 5,917,677 test day records for milk yield (MY), fat... see more

Received: 2018-05-04 | Accepted: 2018-05-14 | Available online: 2018-11-26https://doi.org/10.15414/afz.2018.21.04.135-137Calving difficulty is one of important economic traits in beef production. In the Slovak Republic calving difficulty in beef cattle is... see more

Article Details: Received: 2020-09-29 | Accepted: 2020-11-27 | Available online: 2021-01-31https://doi.org/10.15414/afz.2021.24.mi-prap.20-24The aim of this research was to evaluate the effect of cow exterior on the weight of the calf at parturition and t... see more

Article Details: Received: 2020-04-29 | Accepted: 2020-05-28 | Available online: 2020-09-30https://doi.org/10.15414/afz.2020.23.03.161-166The study aimed to examine the analyses of the trend in the numbers of dairy cows, production and reproductive traits... see more

Findings of research and experiences gained in commercial practice reveal needs for efforts in order to reinforce further development in the subject matter of calving difficulty and stillbirth in dairy cattle with special emphasis on causes and effects. D... see more

Sapi Jabres sebagai sumber daya genetik ternak lokal Indonesia harus dilindungi dan dilestarikan. Namun, kajian karakteristik kinerja reproduksi terutama calving interval pada sapi Jabres pada berbagai umur masih terbatas. Tujuan dari penelitian ini adala... see more

This article explains how to analyze test items in arithmetic operation with fractions to obtain the items' level of difficulty and fitness. Data were collected by using multiple-choice questions given to 50 fourth-grade students of an elementary school i... see more

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