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논문 기본정보

Meta-analysis of factors affecting milk component yields in dairy cattle

논문 개요

기관명, 저널명, ISSN, ISBN 으로 구성된 논문 개요 표입니다.
기관명 NDSL
저널명 Journal of animal science and technology
ISSN ,2055-0391
ISBN

논문저자 및 소속기관 정보

저자, 소속기관, 출판인, 간행물 번호, 발행연도, 초록, 원문UR, 첨부파일 순으로 구성된 논문저자 및 소속기관 정보표입니다
저자(한글) Lee, Junsung,Seo, Jakyeom,Lee, Se Young,Ki, Kwang Seok,Seo, Seongwon
저자(영문)
소속기관
소속기관(영문)
출판인
간행물 번호
발행연도 2014-01-01
초록 The objectives of this study were thus to identify most significant factors that determine milk component yield (MCY) using a meta-analysis and, if possible, to develop equations to predict MCY using variables that can be easily measured in the field. A literature database was constructed based on the research articles published in the Journal of Dairy Science from Oct., 2007 till May, 2010. The database consisted of a total of 442 observed means for MCY from 118 studies. The candidate factors that determine MCY were those which can be routinely measured in the field (e.g. DMI, BW, dietary forage content, chemical composition of diets). Using a simple linear regression, the best equations for predicting milk fat yield(MFY) and milk protein yield (MPY) were $MFY=0.351({ pm}0.068)+0.038({ pm}0.003)$ DMI ( $R^2=0.27$ ), and $MPY=0.552({ pm}0.071)+0.031({ pm}0.002)DMI-0.004({ pm}0.001)$ FpDM (%, forage as a percentage of dietary DM) ( $R^2=0.38$ ), respectively. The best equation for predicting milk fat content (%) explained only 12% of variations in milk fat content, and none of a single variable can explain more than 5% of variations in milk protein content. We concluded that among the tested variables, DMI was the only significant factor that affects MFY and both DMI and FpDM significantly affect MPY. However, predictability of linear equations was relatively low. Further studies are needed to identify other variables that can predict milk component yield more accurately.
원문URL http://click.ndsl.kr/servlet/OpenAPIDetailView?keyValue=03553784&target=NART&cn=JAKO201421154209073
첨부파일

추가정보

과학기술표준분류, ICT 기술분류,DDC 분류,주제어 (키워드) 순으로 구성된 추가정보표입니다
과학기술표준분류
ICT 기술분류
DDC 분류
주제어 (키워드) Meta analysis,Milk fat,Milk protein,Dry matter intake,Dairy cattle