Potential Climate Change Impacts on Livestock and Food Security Nexus in Egypt

Rabie, T.

doi:10.1007/978-3-030-41629-4_17

Cited by 8 publications

(11 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When the body temperature of chickens increases due to an increase in the ambient temperature above 30 °C, biochemical and physiological changes occur which may harm essential body organs if prolonged [ 48 ]. These responses include increased respiratory rate, up from 25 times/min to 260 times/min, leading to decreasing level of carbon dioxide and an increase of bicarbonate in blood plasma [ 49 ], which lowers hydrogen ions concentration and increases plasma pH, in a disease called alkalosis.…”

Section: Animal Responsesmentioning

confidence: 99%

‘Can They Take the Heat?’—The Egyptian Climate and Its Effects on Livestock

Goma

Phillips

2022

Animals

View full text Add to dashboard Cite

Egypt already has conditions in summer that cause heat stress for livestock, and predicted climate changes suggest that these will be exacerbated over the course of this century. As well, extreme climatic events make the mitigation of climate change difficult but important to understand. Apart from neonates, farm animals have upper critical temperatures in the region of 25–30 °C, whereas temperatures in summer regularly exceed 40 °C for prolonged periods. The temperature and humidity data were collected half hourly to calculate Temperature Humidity Indices and demonstrate that Egyptian livestock at two centers of livestock production in the country would experience heat stress in summer for extended periods of each day. The impact of rising temperatures on livestock in Egypt was reviewed, where extensive resources to mitigate the impact are not often available. It was found that, although there are some prospects to mitigate some heat stress, by using agroforestry systems of production for example, these are unlikely to have a major impact, and reduced food security may ensue over the course of this century.

show abstract

Section: Animal Responsesmentioning

confidence: 99%

‘Can They Take the Heat?’—The Egyptian Climate and Its Effects on Livestock

Goma

Phillips

2022

Animals

View full text Add to dashboard Cite

show abstract

“…In 2016, poultry meat production in Egypt was about 148,517 metric tons, which exceeded all other livestock meats, including beef and veal, buffalo meat, sheep and goat meat, camel meat, and others. Calf (buffalo and cattle) production increased to 1.93 million head in 2018 from 1.85 million head in 2017 [ 17 ]. A similar pattern of poultry dominance has been seen in other countries in the region.…”

Section: Climate Change Impacts On Livestock Production In Egyptmentioning

confidence: 99%

“…Heat stress also decreases the body weight of beef cattle due to decreased feed intake and feed conversion efficiency [ 17 ]. Additionally, dairy cattle in heat stress have a particular stance, with a lowered head, backward-facing ears, and a vertical tail [ 63 ].…”

Section: Climate Change Impacts On Livestock Production In Egyptmentioning

confidence: 99%

“…The best coping response to these adverse climatic conditions is the development of resilient management strategies and the genetic selection of heat tolerant livestock species [ 14 ]. In addition to the direct effects on livestock production, there are indirect effects because climate change and variability affect soil and pasture fertility [ 17 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

The Impact of Anthropogenic Climate Change on Egyptian Livestock Production

Goma

Phillips

2021

Animals

View full text Add to dashboard Cite

Egypt is one of the hottest countries in the world, and extreme climate events are becoming more frequent, which is consistent with the warming of the planet. The impact of this warming on ecosystems is severe, including on livestock production systems. Under Egyptian conditions, livestock already suffer heat stress periods in summer. The predicted increases in temperature as result of climate change will affect livestock production by reducing growth and milk production because of appetite suppression and conception rate reductions and will increase animal welfare concerns. In severe cases, these effects can result in death. We review the heat stress effects on livestock behaviour, reproduction, and production in the context of predicted climate change for Egypt over the course of this century and offer alternative scenarios to achieve food security for a growing human population. As an example, we combine predictions for reduced milk production during heat stress and human population trajectories to predict that milk availability per person will decline from 61 kg/year in 2011 to 26 kg/year in 2064. Mitigation strategies are discussed and include the substitution of animal-based foods for plant-based foods and laboratory-grown animal products.

show abstract

“…Nowadays, there has been concerted attention to global warming, especially in tropical and subtropical regions, due to the increased level of average air temperature during recent years (Rabie, 2020). Egypt is located in a subtropical climatic region, which encourages the adaptation to the extreme heat stress and drought of the desert.…”

Section: Introductionmentioning

confidence: 99%

Effect of Heat Stress on Developmental Competence of In Vitro Matured Oocytes of Camelus Dromedaries with Different Qualities

Ashour¹,

El-Sayed²,

Khalifa³

et al. 2020

WVJ

View full text Add to dashboard Cite

The deleterious effect of heat stress on cumulus-oocytes complexes (COCs) competence is well recognized in different livestock species. Therefore, the present study aimed to investigate the effect of physiologically relevant heat stress on the developmental competence of camel COCs during in vitro maturation (IVM). A total of 1548 COCs were divided into six groups in this study. The groups were named K1 and K2 representing good and low-quality COCs incubated at 38.5oC for 30 hours. While K3 and k4 represent good and low-quality COCs exposed to 41oC for the first 6 hours of IVM. Finally, K5 and k6 represent the groups of good and low-quality COCs exposed to 42oC for the first 6 hours of IVM. After exposure of COCs to heat stress at 41°C and 42°C during the first 6 hours of in vitro maturation, the COCs were incubated at 38.5°C for 24 hours of IVM. The in vitro matured COCs were activated to cleave using ethanol followed by 4 mM 6-DMAP and developed embryos were cultured in vitro for 7 days post parthenogenetic activation. The results of this study indicated that heat stress at 42oC significantly decreased the Pb (polar body) extrusion rate in K4 and K6, compared to other groups. Additionally, the embryo cleavage rate was significantly lower for good and low-quality oocytes exposed to heat stress (K2, K3, K4, K5, and K6), compared to good quality COCs of the control group (K1). The cleavage rate was lower for low quality (K2; 63 ± 1.28) than good quality COCs (K1; 53 ± 1.85). The percentages of oocytes that developed to the blastocyst stage were lower for K2, K3, K4, K5, and K6 than K1. Moreover, the blastocyst rate was lower for K2 (9 ± 0.22) than K1 (15 ± 0.22). The results of this study indicated that exposure of camel oocytes to heat stress for 6 hours during in vitro maturation severely reduced extrusion of polar body, cleavage, and blastocyst rates. The low-quality camel COCs were reduced developmental capacity than good quality oocytes.

show abstract

Potential Climate Change Impacts on Livestock and Food Security Nexus in Egypt

Cited by 8 publications

References 24 publications

‘Can They Take the Heat?’—The Egyptian Climate and Its Effects on Livestock

‘Can They Take the Heat?’—The Egyptian Climate and Its Effects on Livestock

The Impact of Anthropogenic Climate Change on Egyptian Livestock Production

Effect of Heat Stress on Developmental Competence of In Vitro Matured Oocytes of Camelus Dromedaries with Different Qualities

Contact Info

Product

Resources

About