Document Detail


Metabolic Profile of Japanese Black Breeding Cattle Herds: Usefulness in Selection for Nutrient Supplementation to Enhance Reproductive Performance and Regional Differences.
MedLine Citation:
PMID:  23196825     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The study aims were (1) to confirm the effects of nutritional improvement in prepartal and postpartal periods, monitored using the serum metabolic profile test (MPT) and reproductive performance, and (2) to clarify regional characteristics of the MPT results within our jurisdiction by using our MPT database. Experiment 1: Among 42 breeding cattle herds in our jurisdiction mainly fed home-pasture roughage, 3 experimental herds showing subnormal BUN levels were selected and compared with 1 representative excellent herd. Dietary remedial measures were implemented from feed analysis in each herd. Blood urea nitrogen (BUN) concentration in all 3 herds increased significantly, and open days postpartum in 2 of the herds were significantly reduced, compared with values before dietary supplementation. Experiment 2: Thirty-seven herds within our jurisdiction were grouped into 3 categories (Area 1, 2, and 3) by location and soil condition of the herd pastureland. The MPT and reproductive performance in cows whose blood samples were collected at both prepartum (60-20 days before calving) and postpartum (30-90 days after calving) were compared among the 3 areas. Significant regional differences were found in prepartal albumin, total cholesterol, BUN, and glucose and postpartal BUN, glucose, and open days (P<0.05). Overall, the MPT (especially BUN) might be useful for determining the metabolic nutritional status of breeding cattle herds, particularly those fed home-pasture roughage. Additionally, poor/unsatisfactory reproductive performance of beef breeding cattle herds probably reflects inadequate nutritional content of the diet, possibly arising from regional pastureland differences.
Authors:
Urara Watanabe; Mitsuhiro Takagi; Osamu Yamato; Takeshige Otoi; Chenga Tshering; Koji Okamoto
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-30
Journal Detail:
Title:  The Journal of veterinary medical science / the Japanese Society of Veterinary Science     Volume:  -     ISSN:  1347-7439     ISO Abbreviation:  J. Vet. Med. Sci.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9105360     Medline TA:  J Vet Med Sci     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
United Graduate School of Veterinary Science, Yamaguchi University.
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