不同小麥日糧對(duì)肉仔雞肌肉發(fā)育的影響
發(fā)布時(shí)間:2018-11-07 17:11
【摘要】:試驗(yàn)選用出生重相近的艾維茵肉仔雞公雛240只,隨機(jī)分為3組,每組4個(gè)重復(fù),每個(gè)重復(fù)20只雞,對(duì)照組為玉米-豆粕型基礎(chǔ)日糧。試驗(yàn)Ⅰ、Ⅱ組日糧為含有營(yíng)養(yǎng)水平相近,但水溶性阿拉伯木聚糖(WSAX)含量不同的兩種小麥日糧,試驗(yàn)為期42 d。在試驗(yàn)期第28 d和42 d分別于每組隨機(jī)抽取12只肉雞,每個(gè)重復(fù)3只,解剖后,取胸肌、腿肌,測(cè)定胸肌率和腿肌率;于第14、21、28、35、42 d取胸肌樣制作石蠟切片,HE染色,顯微觀察并拍照。測(cè)定胸肌纖維直徑、密度。結(jié)果顯示:小麥組肉雞胸肌率和腿肌率與玉米組相比差異不顯著(P0.05);試驗(yàn)組肌纖維密度和直徑都趨向降低,在21~42日齡小麥組與對(duì)照組相比,肌纖維密度顯著降低(P0.05),但小麥組間差異不顯著(P0.05);小麥組肌纖維直徑與玉米組相比呈降低趨勢(shì),在21~42日齡時(shí),試驗(yàn)Ⅱ組的肌纖維直徑顯著低于對(duì)照組和試驗(yàn)Ⅰ組(P0.05)。
[Abstract]:240 male Avian broilers of similar birth weight were randomly divided into 3 groups with 4 replicates in each group and 20 chickens in each replica. The control group was a corn-soybean meal based diet. The diets of trial 鈪,
本文編號(hào):2317016
[Abstract]:240 male Avian broilers of similar birth weight were randomly divided into 3 groups with 4 replicates in each group and 20 chickens in each replica. The control group was a corn-soybean meal based diet. The diets of trial 鈪,
本文編號(hào):2317016
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