Publications by authors named "D Mujibi"

The African Goat Improvement Network Image Collection Protocol (AGIN-ICP) is an accessible, easy to use, low-cost procedure to collect phenotypic data via digital images. The AGIN-ICP collects images to extract several phenotype measures including health status indicators (anemia status, age, and weight), body measurements, shapes, and coat color and pattern, from digital images taken with standard digital cameras or mobile devices. This strategy is to quickly survey, record, assess, analyze, and store these data for use in a wide variety of production and sampling conditions.

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This study is concerned with developing predictive models using machine learning techniques to be used in identifying factors that influence farmers' decisions, predict farmers' decisions, and forecast farmers' demands relating to breeding service. The data used to develop the models comes from a survey of small-scale dairy farmers from Tanzania (n = 3500 farmers), Kenya (n = 6190 farmers), Ethiopia (n = 4920 farmers), and Uganda (n = 5390 farmers) and more than 120 variables were identified to influence breeding decisions. Feature engineering process was used to reduce the number of variables to a practical level and to identify the most influential ones.

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Article Synopsis
  • Efforts to enhance dairy production in East Africa have struggled due to insufficient performance records for targeted breeding.
  • A study utilized genomic data and different models to analyze milk yield, finding that herd grouping based on production levels yielded more accurate genetic parameter estimates.
  • Notably, heritability estimates for milk yields varied significantly based on how herds were defined, and longer intervals between test-day records were less effective for genetic evaluations.
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  • The study evaluated the effects of aluminum citrate on Sprague-Dawley rat offspring using a double-blind, vehicle-controlled design and multiple dose levels (30, 100, 300 mg Al/kg bw/day).
  • The most significant findings included renal pathology, particularly in male pups, with higher mortality in the high-dose group leading to euthanization at day 89.
  • Despite some dose-response relationships in neuromuscular measurements, most behavioral and cognitive assessments did not show consistent treatment-related effects, and any observed brain lesions were attributed to aging rather than aluminum exposure.
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The influence of rumen microbial structure and functions on host physiology remains poorly understood. This study aimed to investigate the interaction between the ruminal microflora and the host by correlating bacterial diversity with fermentation measurements and feed efficiency traits, including dry matter intake, feed conversion ratio, average daily gain, and residual feed intake, using culture-independent methods. Universal bacterial partial 16S rRNA gene products were amplified from ruminal fluid collected from 58 steers raised under a low-energy diet and were subjected to PCR-denaturing gradient gel electrophoresis (DGGE) analysis.

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