雷州山羊喜食牧草养分含量及其与相对采食频度相关性分析

doi:10.16431/j.cnki.1671-7236.2017.10.014

Abstract

Abstract:

In order to understand the correlation between the grazing behavior of Leizhou goat and natural meadow nutrient content, the pasture behavior of Leizhou goats were tracked and recorded for 7 consecutive days, then the grass samples were collected according to the feeding conditions. The results showed that the relative feeding frequency of Pharbitis nil, Eleusine indica, Isachne globosa and Imperata cylindrica for Leizhou goats were 55.51%,28.70%, 8.13% and 1.18%,respectively.Among the determinated pastures, the contents of dry matter (DM)(P < 0.05),neutral detergent fiber (NDF)(P < 0.05) and acid detergent fiber (ADF) in Imperata cylindrica were the highest; Bidens pilosa had the highest contents of crude protein (CP)(P < 0.05),calcium (Ca)(P < 0.05),phosphorus (P)(P < 0.05), crude ash (ASH) and crude fat (EE);The crude fiber (CF) content in Isachne globosa was the highest. The correlation coefficient between the content of grass CP,CF,ADF,NDF,Ca as well as P and relative feeding frequency was 0.793(P < 0.05),-0.813(P < 0.05), -0.328(P > 0.05), -0.945(P < 0.01),0.804(P < 0.05),0.735(P < 0.05),respectively. In conclusion, there were significant positive correlation between the relative feeding frequency of Leizhou goats and the cotent of CP, Ca and P in native grass, and had a significant or extremely significant negtive correlation with CF and NDF content.

Key words: Leizhou goat; natural grassland; grazing behavior; correlation

CLC Number:

S827

WANG Zhi-jing, WU Zheng-min, ZHUANG Gui-feng, WU Hao-hao, LI Zi-cai, CHEN Pu, WANG Ya-yun, HU Zeng-ming, YIN Fu-quan. Analysis of the Relativity Between the Nutrient Content of Pasturage and the Relative Frequency of Feeding in Leizhou Goat Grazing on Natural Grassland[J]. , 2017, 44(10): 2931-2936.

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Analysis of the Relativity Between the Nutrient Content of Pasturage and the Relative Frequency of Feeding in Leizhou Goat Grazing on Natural Grassland

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