与奶牛围产期性状相关的变量。II. 疾病之间的相互关系及其对采食量和繁殖效率的影响。

Variables associated with peripartum traits in dairy cows. II. Interrelationships among disorders and their effects on intake of feed and on reproductive efficiency.

作者信息

Zamet C N, Colenbrander V F, Erb R E, Callahan C J, Chew B P, Moeller N J

机构信息

Department of Animal Sciences, Purdue University, West Lafayette, Indiana 47907, USA.

出版信息

Theriogenology. 1979 Mar;11(3):245-60. doi: 10.1016/0093-691x(79)90032-3.

DOI:10.1016/0093-691x(79)90032-3

PMID:16725409

Abstract

Daily individual voluntary intakes of dry matter (DM % of body weight) and estimated net energy (ENE, Mcal/100 kg) by 89 Holstein cows were compared between day 220 of gestation and day 30 postpartum over a 21-month period. The purpose was to compare effects of diet and health status (control vs. abnormal) on intakes of DM and ENE. The cows were fed either chopped hay, hay crop silage (HCS) or corn silage (CS). Compared to controls, voluntary intakes of DM and ENE were decreased (most to least) in cows with fat cow syndrome (FCS), parturient paresis (PP), mastitis (MST), retained fetal membranes-metritis (RFM-M), and displaced abomasum (DA) prepartum and FCS, DA, PP, RFM-M and MST peripartum. Cows fed hay had a lower incidence of RFM-M (28%) than cows fed HCS (57%) and CS (47%) as well as superior reproductive efficiency subsequently (89% conceived vs. 72% and 78%, respectively).

摘要

在21个月的时间里，对89头荷斯坦奶牛在妊娠第220天和产后第30天的每日个体干物质自愿摄入量（占体重的干物质百分比）和估计净能量（ENE，兆卡/100千克）进行了比较。目的是比较日粮和健康状况（对照与异常）对干物质和ENE摄入量的影响。给奶牛分别饲喂切碎的干草、牧草青贮料（HCS）或玉米青贮料（CS）。与对照组相比，患有肥胖母牛综合征（FCS）、产乳热（PP）、乳腺炎（MST）、胎衣不下-子宫内膜炎（RFM-M）和产前真胃移位（DA）的母牛以及围产期患有FCS、DA、PP、RFM-M和MST的母牛，其干物质和ENE的自愿摄入量均有所下降（从最多到最少）。饲喂干草的母牛RFM-M的发病率（28%）低于饲喂HCS（57%）和CS（47%）的母牛，且随后的繁殖效率更高（受孕率分别为89%，而饲喂HCS和CS的母牛受孕率分别为72%和78%）。