›› 2018, Vol. 45 ›› Issue (8): 2204-2211.doi: 10.16431/j.cnki.1671-7236.2018.08.020

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Effects of Different Addition Amounts of Portulaca oleracea L.Silage on Lactation Performance of Dairy Goats

LIANG Qi1, GAO Zhanjun1, YU Zhu2, XU Qingfang1, CHENG Long1, SONG Wenqi1, GAO Pan1, PAN Xiaoyan1   

  1. 1. College of Animal Science and Veterinary Medicine, Shanxi Agricultural University, Taigu 030801, China;
    2. College of Animal Science and Technology, China Agricultural University, Beijing 100193, China
  • Received:2018-01-31 Online:2018-08-20 Published:2018-08-15

Abstract:

The study was aimed to explore the effects of different addition amounts of Portulaca oleracea L.silage on lactation performance of dairy goats.12 healthy dairy goats with (62±3) kg body weight,(1.90±0.15)kg/d milk yield and similar lactation period (0 to 60 d postpartum) were chosen and randomly divided into 4 groups with 3 replicates per group and 1 dairy goat per replicate.The dairy goats were fed with total mixed rotation (TMR) adding 0 (CK group),10 (group A),20 (group B) and 30 g/d DM (group C) Portulaca oleracea L.silage,respectively.The trial period was 75 d,of which the pre-test period was 15 d and the trial period was 60 d.The dry matter intake,milk yield,milk quality and blood biochemical indexes were determined.The results showed that the amount of dry matter intake of dairy goats increased with the increase of Portulaca oleracea L.silage adding amount.The milk yield in Portulaca oleracea L.silage adding groups were improved compared with control group.The pH range of goat milk was 7.10 to 7.24,showing a downward trend with the increase of additive,and CK group was highest while the group C was lowest.The content of lactose,TPC,TFC and β-carotene in the milk increased with the increase of Portulaca oleracea L.silage dosage,while the total cholesterol content in the serum showed the opposite trend.In conclusion,there was no adverse effect on dairy goats by adding Portulaca oleracea L. silage in TMR, which could increase the feed intake of dairy goats,milk yield and milk quality,meanwhile decrease the total cholesterol.

Key words: Portulaca oleracea L.; dairy goat; lactation performance; silage

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