While information and communication technologies (ICT) have proven to be useful in boosting agricultural production productivity, regardless of the geographical location, much discussion on ICT their impact focus global north, with deficient literature south. The limited account south shows mixed conclusions production, most studies focusing crop as a proxy for leaving out livestock production. Animated by this concern, article explores ICTs (crop livestock) Africa using panel data from 32...

This study investigated the effect of water restriction on wool and blood cortisol concentrations consumption patterns in heat-stressed sheep. Nine Corriedale female sheep (average BW=43±6.5 kg) were individually fed diets based maintenance requirement metabolic crates. They assigned to three treatments according a Latin square design (3×3) for periods with 21-day duration each period (nine per treatment). Treatments included free access (FAW), 2 h (2hWR) 3 (3hWR) after feeding. Average...

This study was conducted to investigate the effect of HS on HSPs gene expression in bovine PBMCs beef calves vitro and vivo models. In experiment, blood samples were collected from jugular vein five (age: 174.2 ± 5.20 days, BW: 145.2 5.21 kg). sixteen Korean native male 169.6 4.60 136.9 6.23 kg) exposed ambient temperature for seven days (22 24 °C, relative humidity 60%; temperature-humidity index (THI) = 68 70) subsequently corresponding target THI level 21 (HS). For PBMC isolation, every...

Abstract The deleterious effects of heat stress on animal health are being increasingly recognized. This study aimed to determine hair cortisol (HC) and serotonin levels in lactating Holstein cows under conditions with different coat hair‐cut color. Forty‐five multiparous (days milk = 130 ± 47, body weight 753 85 kg) were divided two main groups over 80% black color (BC) 85% white (WC) visually observed based registry certificates subdividing sample (BH) samples (WH) 2 × factorial...

The present study aims to examine the relationships between temperature and humidity milk composition, microbial load, somatic cells in of Holstein dairy cows. For this purpose, temperature−humidity index, ambient temperature, relative data were obtained from nearest weather stations. Production four farms Golestan province, Iran, collected 2016 2021. traits investigated protein, fat, solids-not-fat (SNF), cell count (SCC) milk. effects environmental humidity, month, season on analyzed...

This study was conducted to investigate the behavioral and physiological changes of heat stressed Corriedale ewes exposed water deprivation. Nine (average BW = 45 ± 3.7 kg) were individually fed diets based on maintenance requirements in metabolic crates. Ewes assigned into three groups (9 sheep per treatment) according a 3 × Latin square design for periods with 21-d duration each period. The control (CON) group given free access water, 2 h deprivation (2hWD), (3hWD) following feeding. No...

Heat shock proteins (HSPs) consist of highly preserved stress that are expressed in response to stress. Two studies were carried out investigate whether HSP genes hair follicles from beef calves can be suggested as indicators heat (HS). In study 1, harvested three male Hanwoo (aged 172.2 ± 7.20 days) on six dates over the period 10 April 9 August 2017. These days provided varying temperature–humidity indices (THIs). 2, 16 169.6 4.60 days, with a BW 136.9 6.23 kg) maintained (4 per...

This study investigated the effects of dietary protein levels under various heat stress (HS) conditions on growth performance and parameters in Korean native beef calves. Male calves (n = 40; initial BW 202.2 ± 3.31 kg) were randomly assigned to climatic-controlled chambers with 3 × factorial arrangements. Calves into three (low protein; LP 12.5%, medium MP 15%, high HP 17.5%) HS [mild: temperature-humidity index (THI) 74 76, moderate: THI 81 83, severe: 89 91] control (threshold: 70 73...

This current study addresses the knowledge gap regarding influence of seasons, months, and THI on milk yield, composition, somatic cell counts (SCC), total bacterial (TBC) dairy farms in northeastern regions Iran. For this purpose, ten herds were randomly chosen, daily production records obtained. Milk samples systematically collected from individual upon delivery to processing facility for subsequent analysis, including fat, protein, solids-not-fat (SNF), pH, SCC, TBC. The effects TBC...

This study evaluated the effects of a complex natural feed additive on rumen fermentation, carcass characteristics and growth performance in Korean-native steers. In this study, vitro vivo experiment were conducted. Seven different levels (CA) added to buffered fluid using Ankom RF gas production system for 12, 24 48 h. All experimental data analyzed by mixed procedure SAS. Total increased CA groups, with highest response observed 0.06% group at h incubation (linear, p = 0.02; quadratic,...

Abstract The contribution of aquaculture to economic development cannot be overemphasized. Several factors affect production. However, few studies document the impact climate change, electricity and other macroeconomic covariates on production in Africa. present research's objective is examine rainfall, temperature, access electricity, per capita national income, renewable energy consumption, employment agriculture, carbon emissions 32 African countries. We rely panel data using rigorous...

This study aims to characterize the influence of short-term heat stress (HS; 4 day) in early lactating Holstein dairy cows, terms triggering blood metabolomics and parameters, milk yield composition, microRNA expression. Eight cows (milk = 30 ± 1.5 kg/day, parity 1.09 0.05) were homogeneously housed environmentally controlled chambers, assigned into two groups with respect temperature humidity index (THI) at distinct levels: approximately ~71 (low-temperature, low-humidity; LTLH) ~86...

The purpose of this study was to investigate the effect cold stress (CS) on physiological, blood, and behavioral parameters beef cattle according their growth stage. Twelve calves in growing stages (220.4 ± 12.33 kg, male non-castrated) twelve steers early fattening (314.2 18.44 kg) were used experiment. animals randomly distributed into three homogenized groups (four each) for 14 days, namely threshold, mild-moderate (MCS), extreme (ECS), outside ambient temperature. feed water intakes...

This study was conducted to investigate the effect of heat stress (HS) on physiological, blood, and behavioral parameters, according temperature-humidity index (THI), in beef steers. Twelve Korean native steers (342.7 ± 13.81 days old, body weight (BW) 333.0 18.53 kg) were used this experiment. Beef randomly distributed into three homogenized groups (four each) for 14 days, namely, threshold (THI = 64-71), mild-moderate 72-79), severe 80-87). Feed water intake recorded daily. Physiological...

The study objectives were to investigate the heat resistance using peripheral blood mononuclear cells (PBMCs) and hair follicles in beef dairy calves based on shock protein (HSP) 70 genetic polymorphisms. follicle samples from sixty (6 months old; 30 Korean native Holstein calves) collected for DNA extraction. HSP70 single nucleotide polymorphism (SNP) was genotyped a 5′-exonuclease activity (TaqMan) assay. In Study 1, PBMCs isolated 20 categorized by their genotypes during thermoneutral...

The study analyzes the impact of institutional quality, information and communication technology (ICT), higher education enrollment, research on carbon emissions intensity in West Africa. used panel data from 12 African countries, covering 2009-2020 period, which were obtained World Development Indicators database. We applied econometric methods such as fixed random effects generalized method moments for analysis. Our findings indicate that while increased intensity, (proxied number...

In order to investigate the effect of physical forms starter diets on performance, weaning age, nutrient digestibility and rumen biochemical factors, 24 female neonatal Brown Swiss calves (average body weight 39.5±1.2 kg) were randomly assigned three treatments. Dietary treatments mashed (MS), pelleted (PS), texturized (TS) using 8 from birth till 90 days age in each treatment. Diets formulated be iso-nitrogenous with 21% crude protein. Based experimental results, that received PS TS diets,...

Cortisol hormone shows distinct circadian rhythmicity in humans and animals. In this study, preliminary cortisol assessments were conducted using wool samples from ewes (nine ewes) exploiting both RIA ELISA assays. Afterwards, eighteen high production (milk = 38 ± 1.5 kg d−1) lactating Holstein cows (2nd parity) 12 growing heifers (10–12 mo of age, BW 200 35 kg) employed experiment. Higher (P 0.04) serum subsequently significantly higher 0.001) hair levels observed compared with heifers....