Effect of heat stress on milk production and its composition of Holstein Friesian crossbred dairy cows

Reyad, Mahmud Al; Sarker, Md. Asaduzzaman; Uddin, E; Habib, Md. Rezwanul; Rashid, Harun Ur

doi:10.3329/ajmbr.v2i2.29060

Cited by 20 publications

(21 citation statements)

References 14 publications

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“…The difference of minerals% in milk in two seasons might be due to difference in climatic temperature and humidity and less feed intake during hot season. This finding was different from the result of Reyad et al (2016) who got higher minerals% in milk of Holstein Friesian crossbred cows during lower THI period and lower minerals% in higher THI period. Higher minerals content in milk during higher THI period might be due to declining the milk yield and increasing the concentration of minerals in milk as a consequence of heat stress.…”

Section: Methodscontrasting

confidence: 96%

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Impact of heat stress on milk yield and composition in early lactation of Holstein Friesian crossbred cattle

Chanda

Debnath

Khan

et al. 2018

Bang. J. Anim. Sci.

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The aim of the study was to know the effect of heat stress on milk yield and its composition of Holstein Friesian crossbred dairy cows rearing under intensive management system.Heat stress in dairy cows is caused by a combination of environmental factors i.e. temperature, relative humidity, solar radiation and air movement, etc. Grading-up of local cattle by temperate breeds for greater performance results to increase the sensitivity to heat stress. The trial was conducted during hot (May-July) and cool period (December-February) on a total of 12 crossbred dairy cows in early lactation period (first 60 days of lactation). The selected cows were divided into two groups namely as G1 (Holstein-Friesian 50% × Local 50%) and G2 (Holstein-Friesian 75% × Local 25%) and each group containing three cows of 3rd lactation in both periods of trail. Cows of each group were offered same quality and quantity of feed and reared in same management condition in both the trail periods. The mean average temperature humidity index (THI) of the stanchion barn were 70.83± 0.535 and 83.87± 0.375 in cool and hot period, respectively. The differences of THI of cool and hot season was significant (p<0.05). The average rectal temperature (0F) of G1 group was 101.51± 0.027and 102.15±0.049 in cool and hot period, respectively. On the other hand, the average rectal temperature (0F) of G2 group was 101.68± 0.035 and 102.5±0.052 in cool and hot period, respectively. The differences of rectal temperature of both groups between cool and hot season were significant (p<0.05). The average milk yield (Liter/day) of both groups was significantly (p<0.05) higher in cool period (14.92±0.019 and 19.54± 0.116 for G1 and G2 group, respectively) than in hot period (12.84±0.152 and 15±0.137 for G1 and G2 group, respectively). The milk yield of G2 group hampered more compare to G1 group due to higher THI during hot season. The milk fat, protein and lactose of both groups were significantly higher (p<0.05) during lower THI period compare to higher THI period, while the higher values of minerals detected in higher THI period but the differences were not statistically significant (p<0.05). From the result it is evident that the milk yield and composition are greatly affected by the heat stress during early lactation period.Bang. J. Anim. Sci. 2017. 46 (3): 192-197

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Section: Methodscontrasting

confidence: 96%

“…The higher THI in hot season was due to higher barn temperature and humidity. Reyad et al (2016) was also found the higher THI value than 72 in Mymensingh district of Bangladesh. The best approach to conclude that cows are being affected by heat stress is to measure the rectal temperature.…”

Section: Methodsmentioning

confidence: 68%

Impact of heat stress on milk yield and composition in early lactation of Holstein Friesian crossbred cattle

Chanda

Debnath

Khan

et al. 2018

Bang. J. Anim. Sci.

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“…Several other consequences of global warming include flooding, melting ice, sea-level rise, wind and heat stress, which might have direct or indirect negative effects on plant and animal species. For instance, heat stress negatively effects the performance of pastoral livestock (Reyad et al, 2016), whereas flooding would make pastoral livestock systems more vulnerable mainly due to creating feed crisis and increasing morbidity and mortality of livestock (Hoffmann, 2010).…”

Section: Population Growth Food Production and Climate Changementioning

confidence: 99%

“…Intake reductions start at 25 • C with 20 to 40% intake reductions when temperatures exceed 40 • C (Hahn, 1999). Heat stress could reduce milk production by 19% under extensive tropical production systems, which have comparable levels of milk production to pastoral systems (Reyad et al, 2016). In terms of milk quality, Cowley et al (2015) reported a decrease in milk protein content due to heat stress.…”

Section: Productive and Reproductive Performance Of Livestockmentioning

confidence: 99%

Review: Impact of Food and Climate Change on Pastoral Industries

Uddin

Kebreab

2020

Front. Sustain. Food Syst.

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The industrialization of agriculture based on inexpensive fossil fuels allowed for unprecedented levels of food production and population growth, but simultaneously contributed to a threat to food systems and population well-being: climate change. This paper analyses the impacts and adaptations available to the world's pastoral production systems including potential mitigation and adaptation strategies. The current food system is under pressure to satisfy the needs of the increasing population with already limited natural resources particularly land and water, and now increasingly under pressure due to climate change. Increasing incomes from greater number of people have increased demand for animal source foods. As a result, domestic livestock numbers are rising, particularly in low-income countries with greater dependence on pasture for animal feed. The carrying capacity of pastured land is limited; therefore, increasing animal numbers may cause environmental degradation and loss of productivity from pastoral industries. In some countries, the increasing demand has prompted some to burn forestlands and convert them into crop production, and after the land is degraded into pasture mainly for raising large ruminants. Changes in atmospheric carbon dioxide levels and ambient temperatures are predicted to make a number of changes to the growth of herbage for animals. Several strategies can be implemented to optimize the pasture-based food system, including choosing the right breed, improving reproductive efficiency, improving grazing management, and maintaining an animal feed base. The global challenge is to meet our food production needs while sustaining our environment. Producers in all income categories have a role to play in adapting to these challenges.

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“…Studies have reported that heat stress begins when the temperature humidity index value exceeds 65 and mortality rates increase when it exceeds 80 (Vitali et al, 2009;Collier et al, 2011). Many studies have been conducted to show that the heat stress negatively affects milk yield (West, 1999;West et al, 2003;Brouček et al, 2009;Baumgard et al, 2012;Brown et al, 2015;Al Reyad et al, 2016;Trajchev et al, 2016;Zhu et al, 2016) and milk fat rate (Arieli et al, 2004;Rejeb et al, 2012;Brouček et al, 2009;Ghavi Hossein-Zadeh, 2013). However, studies reporting that heat stress negatively affects the reproductive characteristics of animals have also been conducted (Evans et al, 2010;Khodaei-Motlagh et al, 2011;El-Wishy, 2013).This study aimed to investigate the effect of heat stress on milk yield, milk fat ratio and body temperature in Holstein-Friesian dairy cattle.…”

Section: Intrоduсtiоnmentioning

confidence: 99%

The Effect of Heat Stress on Milk Yield, Milk Fat Rate and Rectal Temperature in Holstein-Friesian Dairy Cattle

Ki̇bar

Bakir

Yılmaz

2020

SJAFS

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Heat stress is an environmental factor that negatively affects the morphological and physiological properties of dairy cattle. The aim of this study is to investigate the relationship between heat stress and milk yield, milk fat ratio and body temperature in Holstein-Friesian dairy cattle. The data of the study was obtained from a private Kurtalan Farm of Siirt province, the Southeastern Anatolia Region of Turkey. Milk yield and other traits of 13 head Holstein-Friesian dairy cattle were recorded in March, April, May, June, July, August and September. In addition, temperature and humidity records were recorded in the farm and in the parlor to be used for calculating the temperature humidity index value. In the analysis of data, correlation and regression methods were used. As a result of the study, the negative correlation (P<0.01) was found between milk yield and milk fat ratio and the positive correlation (P<0.001) were detected between heat stress and body temperature. In addition, a significant negative relationship was observed between rectal temperature and milk yield (P<0.01).

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Effect of heat stress on milk production and its composition of Holstein Friesian crossbred dairy cows

Cited by 20 publications

References 14 publications

Impact of heat stress on milk yield and composition in early lactation of Holstein Friesian crossbred cattle

Impact of heat stress on milk yield and composition in early lactation of Holstein Friesian crossbred cattle

Review: Impact of Food and Climate Change on Pastoral Industries

The Effect of Heat Stress on Milk Yield, Milk Fat Rate and Rectal Temperature in Holstein-Friesian Dairy Cattle

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