scholarly journals Effect of heat stress on crossbred dairy cattle in tropical Nepal: Impact on blood parameters

2018 ◽  
Vol 1 (1) ◽  
pp. 223-230
Author(s):  
Tulasi Prasad Paudel ◽  
Buddhi Ram Acharya ◽  
Dainik Bahadur Karki ◽  
Bhola Shankar Shrestha
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Blood Parameters ◽  
Sodium Potassium ◽  
Strategic Location ◽  
Humidity Index ◽  
Crossbred Dairy Cattle ◽  
To Come ◽  
Routine Assessment ◽  
Daily Milk

Chitwan district of Nepal has been known as the dairy kingdom of the country considering its strategic location andpotential to easily provision inputs and produce as well as market quality milk across the country. However, theclimate especially during summer has been a challenge to farmers that potentially compromise the daily milk yieldof cows. Therefore, sixteen crossbred dairy cattle were placed in a RCBD fashion to assess the impacts of cold waterbathing in ameliorating effect of heat stress on their performance and body physiology. Routine assessment of themicroclimate within the experimental shed and blood parameters was made. The results from the experimentinferred that frequency of bathing (none, once, twice or thrice a day) did not have any significant impact onHaemoglobin, Haematocrit, Sodium, Potassium, Chloride and Bicarbonate levels in the blood plasma(p>0.05). Inaddition, the animals did not exhibit any signs of physiological distress clinically either. A detailed study scopingtemperature humidity index and over a number of other milk and blood parameters are to be tested across a numberof other available breeds too in order for the researchers to come to a meaningful strategy to beat the heat stress.

scholarly journals The effect of response to heat stress, parity, breed and breeding region on somatic cell count in dairy cattle

2020 ◽  
Vol 90 (5) ◽  
pp. 435-442
Author(s):  
Vesna Gantner ◽  
◽  
Božidarka Marković ◽  
Mirna Gavran ◽  
Marcela Šperanda ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Somatic Cell ◽  
Cell Count ◽  
Somatic Cell Count ◽  
High Variability ◽  
Humidity Index ◽  
The Individual ◽  
Daily Milk Yield ◽  
Daily Milk

With the aim of determining the effect of response to heat stress, parity, breed and breeding region on somatic cell count (SCC) in dairy cattle, the individual test-day records of dairy cows collected from 2005 to 2012 in regular milk recording (AT4 / BT4 method) in Croatia were used. The proportional differences in log somatic cell count, and logSCC (in %) in subsequent milk recordings (1st, and 2nd) were determined in cows with a significant decrease in daily milk yield at a set temperature-humidity index, THI threshold (68, 72, and 76). The results indicate high variability in somatic cell count due to the animal’s response to heat stress (heat stressed at THI in 68, 72, and 76), parity (1, 2, and 3+), breed (Holstein, and Simmental) and breeding region (Central, and Eastern Croatia). Also, it could be pointed out that Holsteins, especially cows in higher parities (2, 3+) reared in Eastern Croatia were shown to be more sensitive to environmental stress, even in the period after heat stress (1st, and 2nd subsequent milk recording). Since SCC is not only an indicator for mastitis, but also reflects a cow’s immune response to general stress situations, the high variability determined may be explained by the individual adaptation capabilities of these two breeds to breeding conditions in the analysed regions.

Reassessment of temperature-humidity index for measuring heat stress in crossbred dairy cattle of a sub-tropical region

2019 ◽  
Vol 82 ◽  
pp. 99-106 ◽  
Author(s):  
Rakhshan Jeelani ◽  
Dipanjali Konwar ◽  
Asma Khan ◽  
Dhirendra Kumar ◽  
Dibyendu Chakraborty ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Tropical Region ◽  
Temperature Humidity Index ◽  
Humidity Index ◽  
Crossbred Dairy Cattle

scholarly journals Characterization of Short-Term Heat Stress in Holstein Dairy Cows Using Altered Indicators of Metabolomics, Blood Parameters, Milk MicroRNA-216 and Characteristics

Animals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 722
Author(s):  
Jang-Hoon Jo ◽  
Jalil Ghassemi Nejad ◽  
Dong-Qiao Peng ◽  
Hye-Ran Kim ◽  
Sang-Ho Kim ◽  
...  
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Milk Yield ◽  
Milk Fat ◽  
Blood Parameters ◽  
Negative Effects ◽  
Short Term ◽  
Lactating Cows ◽  
Humidity Index ◽  
Holstein Dairy Cows

This study aims to characterize the influence of short-term heat stress (HS; 4 day) in early lactating Holstein dairy cows, in terms of triggering blood metabolomics and parameters, milk yield and composition, and milk microRNA expression. Eight cows (milk yield = 30 ± 1.5 kg/day, parity = 1.09 ± 0.05) were homogeneously housed in environmentally controlled chambers, assigned into two groups with respect to the temperature humidity index (THI) at two distinct levels: approximately ~71 (low-temperature, low-humidity; LTLH) and ~86 (high-temperature, high-humidity; HTHH). Average feed intake (FI) dropped about 10 kg in the HTHH group, compared with the LTLH group (p = 0.001), whereas water intake was only numerically higher (p = 0.183) in the HTHH group than in the LTLH group. Physiological parameters, including rectal temperature (p = 0.001) and heart rate (p = 0.038), were significantly higher in the HTHH group than in the LTLH group. Plasma cortisol and haptoglobin were higher (p < 0.05) in the HTHH group, compared to the LTLH group. Milk yield, milk fat yield, 3.5% fat-corrected milk (FCM), and energy-corrected milk (ECM) were lower (p < 0.05) in the HTHH group than in the LTLH group. Higher relative expression of milk miRNA-216 was observed in the HTHH group (p < 0.05). Valine, isoleucine, methionine, phenylalanine, tyrosine, tryptophan, lactic acid, 3-phenylpropionic acid, 1,5-anhydro-D-sorbitol, myo-inositol, and urea were decreased (p < 0.05). These results suggest that early lactating cows are more vulnerable to short-term (4 day) high THI levels—that is, HTHH conditions—compared with LTLH, considering the enormous negative effects observed in measured blood metabolomics and parameters, milk yield and compositions, and milk miRNA-216 expression.

scholarly journals Effects of Sprinkler Flow Rate on Physiological, Behavioral and Production Responses of Nili Ravi Buffaloes during Subtropical Summer

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 339
Author(s):  
Musa Bah ◽  
Muhammad Afzal Rashid ◽  
Khalid Javed ◽  
Talat Naseer Pasha ◽  
Muhammad Qamer Shahid
Keyword(s):  
Heat Stress ◽  
Milk Yield ◽  
Flow Rate ◽  
Rectal Temperature ◽  
Latin Square ◽  
Flow Rates ◽  
Group Water ◽  
Humidity Index ◽  
Daily Milk Yield ◽  
Daily Milk

Water buffaloes wallow in water to combat heat stress during summer. With the decreasing reservoirs for wallowing, the farmers use sprinklers to cool the buffaloes in Pakistan. These sprinklers use a large quantity of groundwater, which is becoming scarce. The objective of the current study was to determine the effect of different sprinkler flow rates on the physiological, behavioral, and production responses of Nili Ravi buffaloes during summer. Eighteen buffaloes were randomly subjected to three sprinkler flow rate treatments in a double replicated 3 × 3 Latin square design. The flow rates were 0.8, 1.25, and 2.0 L/min. During the study, the average afternoon temperature humidity index was 84.6. The 1.25 and 2.0 L/min groups had significantly lower rectal temperature and respiratory rates than the 0.8 L/min group. Water intake was significantly higher in the 0.8 L/min group. Daily milk yield was higher in the 1.25 and 2.0 L/min groups than in the 0.8 L/min group. These results suggested that the sprinkler flow rates > 0.8 L/min effectively cooled the buffaloes. The sprinkler flow rate of 1.25 L/min appeared to be more efficient, as it used 37.5% less water compared to the 2.0 L/min.

scholarly journals Effect of Heat Stress on Behavior, Physiological and Blood Parameters of Goat

2013 ◽  
Vol 22 (1-2) ◽  
pp. 37-45 ◽  
Author(s):  
MM Alam ◽  
MA Hashem ◽  
MM Rahman ◽  
MM Hossain ◽  
MR Haque ◽  
...  
Keyword(s):  
Heat Stress ◽  
Heat Exposure ◽  
Blood Parameters ◽  
Experimental Animals ◽  
Treatment Groups ◽  
Exposure Temperature ◽  
Heat Treated ◽  
Significant Difference ◽  
Humidity Index ◽  
Severe Heat Stress

The research was conducted to study the effect of heat stress on behavior, some physiological and blood parameters with nine goats of almost similar in age, sex and weight into three groups. Three groups were divided as zero hour (T0), four hours (T4) and eight hours (T8) heat exposure. Temperature–humidity index (THI) value was calculated as 28.17 which indicate the experimental animals were in extreme severe heat stress. Skin and rectal temperature had no significant differences among the treatment groups but respiration/panting and pulse rate were increased with the increased of heat stress from T0 to T8 group (P<0.01).  Significant difference was found in standing time and lying time (P<0.01) in experimental groups. There were significant changes (P<0.01) in number of urination and defecation per hour but no significant changes was found in duration per urination in heat treated groups. The amount of RBC, PCV%, Hb%, WBC were increased with the increased of heat stress (P<0.01). Neutrophil, eosinophil, lymphocyte and monocyte numbers increased significantly (P<0.01) in heat treated groups.  It can be concluded that heat stress had significant changes on some behavioral, physiological and blood parameters of goat.DOI: http://dx.doi.org/10.3329/pa.v22i1-2.16465 Progress. Agric. 22(1 & 2): 37 - 45, 2011  

scholarly journals Effect of heat stress on blood parameters in indigenous sheep

2014 ◽  
Vol 12 (1) ◽  
pp. 91-94 ◽  
Author(s):  
MS Rana ◽  
MA Hashem ◽  
MN Sakib ◽  
A Kumar
Keyword(s):  
Heat Stress ◽  
Blood Cell ◽  
Heat Exposure ◽  
Experimental Period ◽  
Blood Parameters ◽  
Treatment Groups ◽  
Indigenous Sheep ◽  
Significant Difference ◽  
Heat Stress Condition ◽  
Humidity Index

The research was conducted to study the effect of heat stress on blood parameters in indigenous sheep. Nine sheep were divided into three groups which were almost similar in age, sex and weight. Three groups were divided as zero hour (T0), four hours (T4) and eight hours (T8) heat exposure to direct sunlight. During experimental period temperature–humidity index (THI) value was calculated as 27.09 which indicate T4 and T8 groups were subjected to heat stress condition for at least four hours and eight hours respectively every day. The amount of red blood cell (RBC), hemoglobin (Hb%) and packed cell volume (PCV%) were increased significantly (p<0.05) with the increase of heat stress but the amount of white blood cell (WBC) had no significant difference (P>0.05) among the treatment groups. It can be concluded that heat stress had significant changes on some blood parameters in indigenous sheep. DOI: http://dx.doi.org/10.3329/jbau.v12i1.21253 J. Bangladesh Agril. Univ. 12(1): 91-94, June 2014

scholarly journals Effect of heat stress on pregnancy rates of crossbred dairy cattle in Terai region of Uttarakhand, India

2013 ◽  
Vol 2 (4) ◽  
pp. 277-279 ◽  
Author(s):  
FA Khan ◽  
Shiv Prasad ◽  
HP Gupta
Keyword(s):  
Heat Stress ◽  
Dairy Cattle ◽  
Pregnancy Rates ◽  
Crossbred Dairy Cattle

Determining heat stress effect in Holstein dairy cattle using daily milkyield and meteorological data obtained from public weatherstation in Sanliurfa Province of Turkey

2016 ◽  
Author(s):  
Kemal Yazgan
Keyword(s):  
Heat Stress ◽  
Dairy Cows ◽  
Meteorological Data ◽  
Live Weight ◽  
Good Alternative ◽  
Holstein Cows ◽  
Stress Effect ◽  
Humidity Index ◽  
Daily Milk Yield ◽  
Daily Milk

The objective of this study was to detect the relationship between weather information, obtained from nearest public weather station, and milk productions of Holstein cows breeding in Sanliurfa province of Turkey. Data used in this study comprised 711,968 first-five parity individual daily milk and live weight records of 939 Holstein cows. Results from this study indicated that using combination of minimum ambient temperature and relative humidity values one day earlier from daily milk yield in temperature – humidity index (THI) formula can be good alternative for determining heat stress in Holstein dairy cows under climatological conditions in Sanliurfa province of Turkey. As a result, this study confirmed that for quantifying heat stress in dairy cows valuable information can obtained from public weather stations.

scholarly journals The Effect of Breeding Region on Differences in Persistency of Heat Stress Effect in First Parity Simmentals

2019 ◽  
Vol 20 (2) ◽  
pp. 75
Author(s):  
Vesna Gantner ◽  
Mirna Gavran ◽  
Dragan Dokić ◽  
Božo Važić ◽  
Maja Gregić ◽  
...  
Keyword(s):  
Heat Stress ◽  
Threshold Value ◽  
Eastern Region ◽  
Stress Effect ◽  
Milk Traits ◽  
Significant Difference ◽  
Negative Effect ◽  
Humidity Index ◽  
Daily Milk Yield ◽  
Daily Milk

In order to determine the effect of breeding region on differences in persistency of heat stress effect in first parity Simmentals test-day records provided by the Croatian Agricultural Agency were analysed. Only cows with detected statistically significant decrease in daily milk yield at set temperature-humidity index (THI) threshold value (65, 70 and 75) were included in the further analyses. The persistency of heat stress effect regarding the daily milk traits was determined as a drop in the subsequent milk recordings (1st and 2nd). The research results indicate significant difference in animals’ response to heat stress effect due to breeding region and individual’s susceptibility to heat stress. The most pronounced and persistent negative effect of heat stress was determined in cows reared in Eastern region. Also, the negative effect of heat stress was more pronounced and more persistent in Simmentals that were heat stressed at the lower THI threshold values (cows that are more susceptible to heat stress).

scholarly journals Effect of Lactation Yield on First Follicular Wave Surge After Calving of Crossbred Dairy Cattle

2013 ◽  
Vol 4 ◽  
pp. 1
Author(s):  
R.C.A Berber ◽  
H.A.Z Biavatti ◽  
J. Fornazieri ◽  
G.C.M Berber ◽  
L.G.R. Sturaro ◽  
...  
Keyword(s):  
Growth Rate ◽  
Dairy Cattle ◽  
Milk Production ◽  
Post Partum ◽  
Follicular Wave ◽  
Crossbred Dairy Cattle ◽  
Group 2 ◽  
Daily Milk Production ◽  
Group 1 ◽  
Daily Milk

Abstract: This study aimed  to evaluate the effect of lactation on first follicular wave surge of crossbred (Gir x Holstein) dairy cattle.  Nine multiparous crossbred dairy cattle were divided according to daily milk production (Group 1 = milk production higher than average, n = 5; Group 2 = milk  production  lower  than  average,  n  =  4).  From  calving  (Day  0)  until  divergence  of  first follicular wave, ovaries  was monitored daily by ultrasound exams to observed the follicular emergence,  growth  rate,  maximum  follicular  diameter,  day  of  follicular  divergence  and ovulation. The mean of milk production was 17.4 + 6.4 L/day (n= 9). Group 1 had higher daily milk production than Group 2 (21.8 + 3.8 L/day vs. 11.9 + 3.9 L/day, P< 0.001). Data of follicular emergence were similar in both groups (P >0.05). The growth  rate of first follicular surge was higher  in  Group  2  than  Group  1  (2.0  + 0.0  mm/day  vs  1.2  + 0.6  mm/day,  P<  0.05).  The maximum follicular diameter was 11.6  + 0.9 mm (Group 1) and 13.5  + 1.7 mm (Group 2); P< 0.05. The follicular divergence occurred earlier  in Group 1 than Group 2 (12.2  + 0.8 days vs 13.7 + 0.6 days; P< 0.05). One animal of Group 2 ovulated. In conclusion, data suggested that milk production had influence on ovarian follicular dynamic after calving.Keywords: Follicle, post-partum, lactation, dairy cattle

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