Effects of Supplementation of Alfalfa Hay on Growth and Development and Plasma Biochemical Indices of Dairy Goat Kids

LYU Ming, PAN Tan, ZHANG Tiantian, LUO Jun, WANG Ping

doi:10.3969/j.issn.1006-267x.2018.12.031

Chinese Journal of Animal Nutrition >

2018 , Vol. 30 >Issue 12: 5032 - 5039

DOI: https://doi.org/10.3969/j.issn.1006-267x.2018.12.031

Molecular Nutrition

Effects of Supplementation of Alfalfa Hay on Growth and Development and Plasma Biochemical Indices of Dairy Goat Kids

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College of Animal Science and Technology, Northwest Agriculture and Forestry University, Yangling 712100, China

Received date: 2018-06-01

Online published: 2018-12-19

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Abstract

This experiment was conducted to study the effects of supplementation of alfalfa hay on growth and development and plasma biochemical indices of dairy goat kids. Sixteen healthy Xinong Saanen male dairy goat kids at 2 weeks of age with similar body weight [(4.56±0.71) kg] were selected, four of them were colleced samples after slaughter as the basal control group before experiment starting. The other 12 goats were randomly assigned to two experimental group with 6 goats per group, goats in Hay-2 group were supplementary feeding alfalfa hay from 2 weeks of age, and goats in Hay-8 group were supplementary feeding alfalfa hay from 8 weeks of age. The experiment lasted for 14 weeks. The results showed as follows: 1) the concentrate dry matter intake after weaning (10 to 16 weeks of age) and average daily intake at 10 weeks of age of goat kids in Hay-2 group were higher than those of Hay-8 group. 2) There were no significant differences in weights of rumen, reticulum, omasum, abomasum and liver of goat kids at 16 weeks of age between Hay-2 group and Hay-8 group (P>0.05). 3) The rumen papillaes width and submucosa thickness in Hay-2 group were significantly higher than those in Hay-8 group (P<0.05), and the rumen muscular layer thickness in Hay-2 group was significantly lower than that in Hay-8 group (P<0.05). 4) There were no significant differences in the contents of total protein, urea nitrogen, glucose and triglyceride in plasma of goat kids between Hay-2 group and Hay-8 group (P>0.05). The results suggested that early (2 weeks of age) supplementation of alfalfa hay is able to relieve the effect of weaning on feed dry matter intake and average daily gain of dairy goat kids, and enhances the development of rumen papilla without causing abnormal changes of plasma biochemical indices.

Key words： dairy goat kids; alfalfa hay; growth and development; plasma biochemical indices

Cite this article

LYU Ming, PAN Tan, ZHANG Tiantian, LUO Jun, WANG Ping . Effects of Supplementation of Alfalfa Hay on Growth and Development and Plasma Biochemical Indices of Dairy Goat Kids[J]. Chinese Journal of Animal Nutrition, 2018 , 30(12) : 5032 -5039 . DOI: 10.3969/j.issn.1006-267x.2018.12.031

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