Feeding Values Assessment of Spartina anglica in Fuqing goats

LIU Yuan; WU Xianfeng; CHEN Xinzhu; GAO Chengfang; MIAO Furong; ZHUANG Zhongqin; LI Wenyang

doi:10.3969/j.issn.1006-267x.2019.11.047

Chinese Journal of Animal Nutrition >

2019 , Vol. 31 >Issue 11: 5301 - 5309

DOI: https://doi.org/10.3969/j.issn.1006-267x.2019.11.047

Feeding Values Assessment of Spartina anglica in Fuqing goats

LIU Yuan ,
WU Xianfeng ,
CHEN Xinzhu ,
GAO Chengfang ,
MIAO Furong ,
ZHUANG Zhongqin ,
LI Wenyang

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Animal Husbandry and Veterinary Institute, Fujian Academy of Agricultural Sciences, Fuzhou 350013, China

Received date: 2019-05-01

Online published: 2019-11-19

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Abstract

In this experiment, common nutrient composition analysis, ex vivo test and in vivo digestion test were used to assess feeding values of Spartina anglica in Fuqing goats. Nylon-bag technique was used to estimate the degradation characteristics of major nutrient composition in rumen of Spartina anglica of Fuqing goats. Twelve adult Fuqing goats with initial body weight of (30.50±0.75) kg were randomly divided into 4 groups (3 replicates per group and 1 goat per replicate), and goats in the 4 groups were fed the basal diet (forage to concentrate ratio was 3:7) and 3 experimental diets (the basal diet was replaced by 10%, 20% and 30% Spartina anglica). The pre-experimental period lasted for 10 days, and the experimental period lasted for 6 days. Nutrient apparent digestibility of experimental diets were measured by total collection of feces and urine, then calculated the nutrient whole intestine apparent digestibility in all groups. The results showed as follows:1) gross energy (GE) of Spartina anglica was 16.19 MJ/kg, and the contents of crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), ash (Ash), calcium (Ca), total phosphorus (TP) and salt[dry matter (DM) basis] were 8.16%, 1.23%, 66.85%, 42.60%, 10.37%, 0.15%, 0.12% and 2.16%, respectively. 2) The rumen effective degradability of DM, OM, CP, NDF and ADF of Spartina anglica were 41.35%, 45.79%, 48.92%, 34.52% and 35.65%, respectively. 3) The whole intestine apparent digestibility of DM and OM of Spartina anglica in 10% group was significantly higher than that in 30% group (P<0.05). 4) The nitrogen retention rate in 10% group was the highest (47.33%), and significantly higher than that in 30% group (P<0.05); the nitrogen biological value in 20% group was the highest (71.14%), and significantly higher than that in 30% group (P<0.05). It is concluded that diets made by Spartina anglica can be intake and utilize by Fuqing goats, but it has high fiber and salt contents, and the optimal supplemental proportion in the diet of Fuqing goats is 10% to 20%.

Key words： Spartina anglica; Fuqing goats; feeding value; substitution method; rumen degradability; apparent digestibility

Cite this article

LIU Yuan , WU Xianfeng , CHEN Xinzhu , GAO Chengfang , MIAO Furong , ZHUANG Zhongqin , LI Wenyang . Feeding Values Assessment of Spartina anglica in Fuqing goats[J]. Chinese Journal of Animal Nutrition, 2019 , 31(11) : 5301 -5309 . DOI: 10.3969/j.issn.1006-267x.2019.11.047

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