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  • Effects of diets optimized by CPM model on growth, development and blood biochemical parameters of Holstein replacement heifers at 7 to 15 months of age.

    Author(s) : Wang YangQu YongLiWang ZhiBoLiu LiChengLiu XiangZhao XinXing WeiMing

    Author Affiliation : College of Animal Science and Technology, Heilongjiang Bayi Agricultural University, Daqing 163319, China.

    Author Email : 182061631@qq.comYlqu007@126.com

    Journal article : Chinese Journal of Animal Nutrition 2014 Vol.26 No.11 pp.3291-3297 ref.17

    Abstract : DietsdietsSubject Category: Miscellaneous
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    of Holstein replacement heifersheifersSubject Category: Organism Groups
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    in scaled farm was optimized by CPM model, and the effects of optimized diets on growth, development and blood biochemical parameters were evaluated in this study. Forty Holstein replacement heifers with the same months of age (7 months of age), and similar body height and weight were randomly divided into control and test groups according to paired experimental design, and each group had 20 heifers. Heifers of control group were fed original diets of the farm, while those of test group were fed diets optimized by CPM model. The experimental period was 270 days. The results showed as follows: replacement heifers fed optimized diets had significantly higher cannon circumference at 8, 10, 11, 13 and 15 months of age (P<0.01); serum calciumcalciumSubject Category: Chemicals and Chemical Groups
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    content of replacement heifers fed optimized diets was significantly higher than that of heifers fed original diets (P<0.05); cost of optimized diets of 7 months of age, 8 to 9 months of age, 10 to 12 months of age, 13 to 15 months of age was decreased by 1.02, 0.78, 0.62 and 0.52 yuan/(head.d) than that of original diets, respectively. In conclusion, diets optimized by CPM model can increase cannon circumference of Holstein replacement heifers, improve growth and absorption of blood calcium, and decrease feeding cost; CPM model can be used to evaluate and optimize diets formulation of Holstein replacement heifers.

    ISSN : 1006-267X

    URL : http://www.chinajan.com/CN/abstract/h...

    Record Number : 20143422569

    Publisher : Chinese Association of Animal Science and Veterinary Medicine

    Location of publication : Beijing

    Country of publication : China

    Language of text : Chinese

    Language of summary : English

    Indexing terms for this abstract:

    Organism descriptor(s) : cattlecattleSubject Category: Organism Names
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    , Holstein (cattle breed)holstein (cattle breed)Subject Category: Animal Breeds
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    Descriptor(s) : blood chemistryblood chemistrySubject Category: Miscellaneous
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    , body weightbody weightSubject Category: Properties
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    , breedsbreedsSubject Category: Organism Groups
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    , calciumcalciumSubject Category: Chemicals and Chemical Groups
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    , cattle breedscattle breedsSubject Category: Organism Groups
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    , cowscowsSubject Category: Organism Groups
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    , dairy cattledairy cattleSubject Category: Organism Groups
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    , dairy cowsdairy cowsSubject Category: Organism Groups
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    , dietsdietsSubject Category: Miscellaneous
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    , growth rategrowth rateSubject Category: Properties
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    , heifersheifersSubject Category: Organism Groups
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    , modelsmodelsSubject Category: Techniques, Methodologies and Equipment
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    Identifier(s) : animal breed, animal breeds

    Broader term(s) : BosbosSubject Category: Organism Names
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    , BovidaebovidaeSubject Category: Organism Names
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    , ruminantsruminantsSubject Category: Organism Names
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    , ArtiodactylaartiodactylaSubject Category: Organism Names
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    , mammalsmammalsSubject Category: Organism Names
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    , vertebratesvertebratesSubject Category: Organism Names
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    , ChordatachordataSubject Category: Organism Names
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    , animalsanimalsSubject Category: Organism Names
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    , eukaryoteseukaryotesSubject Category: Organism Names
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    , cattlecattleSubject Category: Organism Names
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