Effects of high environmental temperatures on physiological and nutritional status of prepubertal Holstein heifers

Nonaka, Itoko; Takusari, Naozumi; Tajima, Kiyoshi; Suzuki, Tomoyuki; Higuchi, Koji; Kurihara, Mitsunori

doi:10.1016/j.livsci.2007.02.010

Cited by 100 publications

(80 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At 40°C, dietary intake might decline by as much as 40% (National Research Council, 1989). Similar findings have been also reported in Holstein heifers (Nonaka et al, 2008). In present study, the decline in DMI was only evident at 40°C exposure and further the decrease in DMI was owing to a decrease in roughage intake as the amount of concentrate mixture was fixed and the offered concentrate was completely consumed by the animals.…”

Section: Results and Disussonsupporting

confidence: 91%

“…The studies related to effect of different temperature exposures on digestibility had been conducted in temperate breeds simulating heat stress under temperate climate conditions (Nonaka et al, 2008; Yadav et al, 2013) but lacking in crossbreds in subtropical and tropical climatic conditions. Also, the study on the effect of heat stress on CH 4 emission in cattle is still less exploited.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Simulated Heat Stress on Digestibility, Methane Emission and Metabolic Adaptability in Crossbred Cattle

Yadav

Singh

Wankar

et al. 2016

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

The present experiment was conducted to evaluate the effect of simulated heat stress on digestibility and methane (CH4) emission. Four non-lactating crossbred cattle were exposed to 25°C, 30°C, 35°C, and 40°C temperature with a relative humidity of 40% to 50% in a climatic chamber from 10:00 hours to 15:00 hours every day for 27 days. The physiological responses were recorded at 15:00 hours every day. The blood samples were collected at 15:00 hours on 1st, 6th, 11th, 16th, and 21st days and serum was collected for biochemical analysis. After 21 days, fecal and feed samples were collected continuously for six days for the estimation of digestibility. In the last 48 hours gas samples were collected continuously to estimate CH4 emission. Heat stress in experimental animals at 35°C and 40°C was evident from an alteration (p<0.05) in rectal temperature, respiratory rate, pulse rate, water intake and serum thyroxin levels. The serum lactate dehydrogenase, aspartate aminotransferase, alanine aminotransferase, alkaline phosphatase activity and protein, urea, creatinine and triglyceride concentration changed (p<0.05), and body weight of the animals decreased (p<0.05) after temperature exposure at 40°C. The dry matter intake (DMI) was lower (p<0.05) at 40°C exposure. The dry matter and neutral detergent fibre digestibilities were higher (p<0.05) at 35°C compared to 25°C and 30°C exposure whereas, organic matter (OM) and acid detergent fibre digestibilities were higher (p<0.05) at 35°C than 40°C thermal exposure. The CH4 emission/kg DMI and organic matter intake (OMI) declined (p<0.05) with increase in exposure temperature and reached its lowest levels at 40°C. It can be concluded from the present study that the digestibility and CH4 emission were affected by intensity of heat stress. Further studies are necessary with respect to ruminal microbial changes to justify the variation in the digestibility and CH4 emission during differential heat stress.

show abstract

Section: Results and Disussonsupporting

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Effect of Simulated Heat Stress on Digestibility, Methane Emission and Metabolic Adaptability in Crossbred Cattle

Yadav

Singh

Wankar

et al. 2016

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

show abstract

“…In the present study, high temperature stressor impaired total disaccharidase activity and xylose absorption of porcine small intestine, which may relate to the disturbance of hypothyroid hormone induced by heat stress. Patience et al (2005) and Nonaka et al (2008) reported that heat stress altered nutrient digestibility by reducing nutrient uptake from the gut lumen or by reducing thyroid hormone levels which in turn alters gastrointestinal motility and digestive passage rates. Thyroid hormones, either T 4 or T 3 , were known to play an important role in the animal's adaptation to environmental changes, and T 3 is more concerned with thermogenesis.…”

Section: Effect Of High Temperature Stress On Porcine Growth Performamentioning

confidence: 99%

Traditional Chinese medicine decoction enhances growth performance and intestinal glucose absorption in heat stressed pigs by up-regulating the expressions of SGLT1 and GLUT2 mRNA

Song

Wang

et al. 2010

Livestock Science

View full text Add to dashboard Cite

“…In Experiment 1 16 , prepubertal Holstein heifers (n = 4, initial body weight (initial BW) = 198 ± 3 kg, initial age = 7.7 ± 0.2 months) were maintained at three environmental temperatures, 20, 28 and 33°C, in that order in an environmentally controlled room 8 where the relative humidity (RH) was maintained at 60%. The experimental diet consisted of a 50% split of concentrate and roughage respectively, which was sufficient to meet the heifers' energy and protein requirements to achieve a growth rate of 0.8 kg/day based on the Japanese Feeding Standard…”

Section: The Effects Of High Temperature and Humidity On The Performamentioning

confidence: 99%

Effects of a Hot and Humid Environment on the Performance of Holstein Heifers

Nonaka

Takusari

Higuchi

et al. 2012

JARQ

View full text Add to dashboard Cite

A series of studies were performed to determine the effects of increasing environmental temperature and relative humidity on the performance of Holstein heifers. In heifers of 200 kg body weight, the effects on dry matter intake and daily weight gain were small at 28°C and 60% relative humidity, but dry matter intake and daily weight gain were seen to start declining at 28°C and 80% relative humidity. Moreover, in heifers of 400 kg body weight, even at relative humidity of 60%, dry matter intake and daily weight gain started to decline at 28°C. At 60% relative humidity, the rate of decline in daily weight gain in heifers of 200 kg body weight at 33°C was similar to that of those of 400 kg body weight at 28°C. These results indicated that the influence of high temperature on the performance of heifers intensified at a late stage, and under high relative humidity. An assessment of the impact of global warming on heifer growth performance in the Japanese summer was made using 'Climate change 10 × 10 km mesh data (Japan)', which is one of the models assuming progressive global warming. In the 2060s, compared to the end of the 20 th century, areas showing a decline in the rate of body weight gain in heifers will expand from Kanto to the western Hokkaido area, and the rate of decline will accelerate over time from the present to the 2020s, 2040s and 2060s, especially in July and August. As high humidity under hot temperatures significantly affect heifer growth, global warming and high humidity in the Japanese summer will have the negative effect. Discipline: Animal industryAdditional key words: assessment of global warming, energy and nitrogen metabolism Present address:

show abstract

Effects of high environmental temperatures on physiological and nutritional status of prepubertal Holstein heifers

Cited by 100 publications

References 36 publications

Effect of Simulated Heat Stress on Digestibility, Methane Emission and Metabolic Adaptability in Crossbred Cattle

Effect of Simulated Heat Stress on Digestibility, Methane Emission and Metabolic Adaptability in Crossbred Cattle

Traditional Chinese medicine decoction enhances growth performance and intestinal glucose absorption in heat stressed pigs by up-regulating the expressions of SGLT1 and GLUT2 mRNA

Effects of a Hot and Humid Environment on the Performance of Holstein Heifers

Contact Info

Product

Resources

About