Comparison of Urinary Cortisol Levels in Holstein and Japanese Shorthorn Cows in Response to Breeding System and Heat Stress
Journal Title: Journal of Animal Science Advances - Year 2014, Vol 4, Issue 8
Abstract
This study was performed to compare the stress hormone levels of Holstein and Japanese Shorthorn cows in response to the breeding system and heat stress. A total of 50 Holstein and 17 Japanese Shorthorn cows were used. The breeding system and heat stress were classified into grazing and indoor housing groups, and into the Temperature-Humidity Index (THI) ≥72 and THI <72, respectively. For Holstein cows, the urinary cortisol levels were higher in the grazing group than in the indoor housing group. In contrast, for Japanese Shorthorn cows, the urinary cortisol levels were higher in the indoor housing group than in the grazing group. In the grazing group, the urinary cortisol levels were higher in Holstein cows than in Japanese Shorthorn cows. In the grazing group of Holstein cows, the urinary cortisol levels were higher in the THI ≥72 group than in the THI <72 group. On the other hand, in Japanese Shorthorn cows, the urinary cortisol levels did not differ between the 2 THI groups, regardless of the breeding system. This study suggested that Holstein and Japanese Shorthorn show differing stress responses to breeding system and (or) heat stress.
Authors and Affiliations
Y. Higashiyama , T. Komatsu , M. Fukasawa , K. Ikeda , F. Akiyama , S. Asakuma
Keywords
Related Articles
- EP ID EP131917
- DOI -
- Views 148
- Downloads 0
Effects of Dietary Methionine-Supplementation on the General Performance and Economic Value of Rahmani Lambs
Essential amino acids such as methionine have been increasingly included into diets of lambs. However, few studies have determined the effects of methionine supplementation in the general performance and economic returns...
Plasmid Profile Analysis of Bacteria Isolated From Selected Honey Samples in Nigeria
The study was aimed at determining the plasmid profile of isolates obtained from honey samples sold in Nigeria. Forty- three bacterial isolates gotten from honey samples were screened for the presence of plasmid DNA and...
Studies on Nutritional Value of Fruits in Latur District of Maharashtra State (India) with Special Reference to Iron Mineral
A present investigation was carried out to determine the nutritional value of fruits grown in Latur district like Banana, Papaya, Sapota, Pomegranate, Apple and Fig. From the investigation it has been observed that the p...
Effects of Supplementing a Low Quality Diet with Desert Shrub (Kochia prostrata) on Alpaca (Vicugna pacos) Nutritional Status
This study determined the effects of supplementing a low quality (straw) diet with forage kochia (Kochia prostrata) on the nutritional status of alpacas (Lama pacos). Two experiments were conducted with this objective. T...
An Investigation of Fish Species Diversity, Abundance and Diets of Selected Predator Fish in Insukamini Dam, Zimbabwe
A total of 8 fish species (n=465) were caught by gill nets from December 2009 to May 2010 to investigate fish ecology in Insukamini dam. The species were identified as: Serranochromis robustus (n=18), Micropterus salmoid...