In order to research the effects of concentrate supplemental level on uterine recovery of Tibetan sheep after parturition, a total of 3-year-old 160 Tibetan sheep at the second parity with similar body status were chose and divided into four groups [groups Ⅰ, Ⅱ, Ⅲ and Ⅳ (control), 40 sheep in each group]. Sheep in experimental groups were all barn fed. The concentrate supplemental levels for groups Ⅰ, Ⅱ, Ⅲ were 0.50, 0.75, 1.00 kg/d for one sheep, respectively, while group Ⅳ was carried out traditional grazing. The pre-test lasted for 6 d, and the test lasted for 35 d. Body weight of sheep, uterine weight, sum of three diameters, area and height of leaf, the thickness of uterine wall were determined. The results showed as follows: weight gain of sheep in groups Ⅱ and Ⅲ was significantly lower than that of groups Ⅰ and Ⅳ (P<0.01), and that of group Ⅰ was significantly lower than that of group Ⅳ (P<0.01); with the increasing of concentrate supplemental level, uterine weight, sum of three diameters, uterine area and uterine height were declined, while thickness of uterine wall was increased; Tibetan sheep finished uterine recovery for groups Ⅱ and group Ⅲ after 34 d of parturition. In conclusion, concentrate supplementation at 0.75 kg/d for one sheep can promote uterine recovery, and it finishes in 34 d after parturition.
MA Liaowei
,
HOU Shengzhen
,
WANG Zhiyou
,
SHEN Dachao
. Effect of Concentrate Supplemental Level on Uterine Recovery of Tibetan Sheep after Parturition[J]. Chinese Journal of Animal Nutrition, 2016
, 28(1)
: 249
-255
.
DOI: 10.3969/j.issn.1006-267x.2016.01.032
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