畜牧与饲料科学
畜牧與飼料科學
축목여사료과학
ANIMAL HUSBANDRY AND FEED SCIENCE
2014年
10期
15-16,19
,共3页
荒漠草原%优势牧草%饲料相对指数%刈割期
荒漠草原%優勢牧草%飼料相對指數%刈割期
황막초원%우세목초%사료상대지수%예할기
desert steppe%dominant forage grass%relative feed value(RFV)%harvesting period
将采自内蒙古鄂尔多斯地区的禾本科牧草3种、豆科牧草3种和菊科牧草3种分别于6月、7月和9月刈割晾干,共制得27个样本。通过应用饲料相对指数(RFV)进行综合评定可知:将6月、7月和9月分别刈割的同一品种牧草混合后,品质最好的为中苜2号,其次是沙打旺,再次是沙蒿,最差的是花棒;同种牧草不同刈割期比较可知:对于禾本科牧草来说,针茅、冰草和中苜2号在不同刈割期营养价值的大小顺序为6月>7月>9月;对于豆科牧草来说,花棒、沙打旺在不同刈割期营养价值的大小顺序为6月>7月>9月,但草木樨在不同刈割期营养价值的大小顺序则为6月>9月>7月;对于菊科牧草来说,沙蒿、猪毛蒿、籽蒿在不同刈割期营养价值的大小顺序为7月>6月>9月。
將採自內矇古鄂爾多斯地區的禾本科牧草3種、豆科牧草3種和菊科牧草3種分彆于6月、7月和9月刈割晾榦,共製得27箇樣本。通過應用飼料相對指數(RFV)進行綜閤評定可知:將6月、7月和9月分彆刈割的同一品種牧草混閤後,品質最好的為中苜2號,其次是沙打旺,再次是沙蒿,最差的是花棒;同種牧草不同刈割期比較可知:對于禾本科牧草來說,針茅、冰草和中苜2號在不同刈割期營養價值的大小順序為6月>7月>9月;對于豆科牧草來說,花棒、沙打旺在不同刈割期營養價值的大小順序為6月>7月>9月,但草木樨在不同刈割期營養價值的大小順序則為6月>9月>7月;對于菊科牧草來說,沙蒿、豬毛蒿、籽蒿在不同刈割期營養價值的大小順序為7月>6月>9月。
장채자내몽고악이다사지구적화본과목초3충、두과목초3충화국과목초3충분별우6월、7월화9월예할량간,공제득27개양본。통과응용사료상대지수(RFV)진행종합평정가지:장6월、7월화9월분별예할적동일품충목초혼합후,품질최호적위중목2호,기차시사타왕,재차시사호,최차적시화봉;동충목초불동예할기비교가지:대우화본과목초래설,침모、빙초화중목2호재불동예할기영양개치적대소순서위6월>7월>9월;대우두과목초래설,화봉、사타왕재불동예할기영양개치적대소순서위6월>7월>9월,단초목서재불동예할기영양개치적대소순서칙위6월>9월>7월;대우국과목초래설,사호、저모호、자호재불동예할기영양개치적대소순서위7월>6월>9월。
Three species of Gramineae grass, three species of Legume grass and three species of Asteraceae grass were collected from Ordos of Inner Mongolia in June, July and September respectively and air-dried. And twenty-seven samples were made. The comprehensive evaluation results by relative feed value (RFV) showed that Zhongmu No.2 had the highest quality when the same species of grass samples harvested in June, July and September were mixed. And the quality of Astragalus adsurgens Pall. and Artemisia desterorum Spreng were the next, and the quality of Hedysarum scoparium Fisch. was the worst. Then the same species of forage grass harvested at different time were compared. As for Gramineae grass, the nutritional value order of Stipa krylovii Roshev., Agropyron desertorum and Zhongmu No.2 in different harvesting period was June>July>September. As for Legume grass, the nutritional value order of H. scoparium and A. adsurgens in different harvesting period was June>July>September, but the nutritional value order of Melilotus albus was June>September>July. As for Asteraceae grass, the nutritional value order of A. desterorum, Artemisia scoparia Waldst. et Kit. and Artemisia sieversiana was July>June>September.