Source:http://linkedlifedata.com/resource/pubmed/id/19141100
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
2009-11-13
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pubmed:abstractText |
One hundred and twenty-six cows were involved to investigate the impact of energy (E) restriction (100%, 90%, 80% and 70% of total energy requirements) during the indoor period and two calf management systems (CMS: suckling or rearing). An E restriction during the indoor period resulted in a loss of body weight, even for E100, which was compensated during the re-alimentation period, but body weight remained lower in suckling than in non-suckling cows. The cows yielded 213 full-term gestations and 8 abortions. Abortion was not affected by E (p = 0.187) or CMS (p = 0.804). Calving interval was neither affected by E (p = 0.775) but tended to be longer in suckled cows (p = 0.087). E reduced body weight and body condition score (BCS) at the end of the calving interval, while CMS only affected BCS. E70 resulted in a higher colostrum yield than E100 and E 90 but immunoglobulin content was not affected (p = 0.759). Cow culling was not affected by E or CMS. It increased from 12.9% to 22.2% and 32.5% for cows with a BCS at parturition lower than 1.5 or between 1.5 and 2.0, or higher than 2 respectively. Calf birth weight was neither affected by E or CMS, but there was an interaction between E and dam age (p = 0.050). Increasing the E restriction tended to reduce calf survival (p = 0.089). Performance of the surviving calves was not affected by E, but suckling calves gained faster than rearing calves (p < 0.001). Beef production by the cow-calf pair was not different between energy levels (p = 0.738), but it was 10.8% lower for E70 than for E100 cows. It is not appropriate to apply an E restriction of more than 10-20% for maximum cow reproductive traits and calf performance.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
Dec
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pubmed:issn |
1439-0396
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pubmed:author | |
pubmed:issnType |
Electronic
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pubmed:volume |
93
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
678-87
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pubmed:meshHeading |
pubmed-meshheading:19141100-Animal Feed,
pubmed-meshheading:19141100-Animal Husbandry,
pubmed-meshheading:19141100-Animal Nutritional Physiological Phenomena,
pubmed-meshheading:19141100-Animals,
pubmed-meshheading:19141100-Body Weight,
pubmed-meshheading:19141100-Cattle,
pubmed-meshheading:19141100-Diet,
pubmed-meshheading:19141100-Energy Metabolism,
pubmed-meshheading:19141100-Female,
pubmed-meshheading:19141100-Food Deprivation,
pubmed-meshheading:19141100-Housing, Animal,
pubmed-meshheading:19141100-Reproduction
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pubmed:year |
2009
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pubmed:articleTitle |
Effect of indoor energy restriction level and management on beef production in Belgian Blue double-muscled cow-calf pairs.
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pubmed:affiliation |
ILVO-Animal Sciences, Melle, Belgium. leo.fiems@ilvo.vlaanderen.be
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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