本文選題：黃梁木 + 樂(lè)至黑山羊�。� 參考：《飼料工業(yè)》2017年21期

【摘要】：試驗(yàn)旨在研究青貯黃梁木不同比例替代青貯全株玉米對(duì)育肥期樂(lè)至黑山羊生長(zhǎng)性能、屠宰性能和肉品質(zhì)的影響。選取體重為(21.07±4.05)kg的5月齡樂(lè)至黑山羊公羔45只,隨機(jī)分為3組,每組15只。對(duì)照組每天飼喂基礎(chǔ)飼糧,試驗(yàn)組每天用青貯黃梁木分別按比例替代25%和50%青貯全株玉米。預(yù)飼期10 d,正式期40 d。結(jié)果顯示:(1)青貯黃梁木不同比例替代青貯全株玉米極顯著提高了育肥期樂(lè)至黑山羊的平均日采食量(P0.01),極顯著提高了平均日增重(P0.01);50%青貯黃梁木替代組顯著降低了料肉比(P0.05)。(2)青貯黃梁木不同比例替代青貯全株玉米顯著提高了育肥期樂(lè)至黑山羊的肩寬(P0.05),50%青貯黃梁木替代組顯著增加了眼肌面積(P0.05),對(duì)其余屠宰指標(biāo)均無(wú)不良影響。(3)青貯黃梁木不同比例替代青貯全株玉米顯著降低了育肥期樂(lè)至黑山羊羊肉的失水率(P0.05),極顯著降低了苯丙氨酸的含量(P0.01),50%青貯黃梁木替代組顯著提高了蘇氨酸和賴(lài)氨酸的含量(P0.05)。結(jié)果表明,青貯黃梁木不同比例替代青貯全株玉米對(duì)育肥期樂(lè)至黑山羊生長(zhǎng)性能、屠宰性能和肉品質(zhì)有一定的提高作用,本試驗(yàn)條件下,以青貯黃梁木50%替代青貯全株玉米的效果較優(yōu)。
[Abstract]:The purpose of this study was to study the effects of silage with different proportion of silage on growth performance, slaughter performance and meat quality of Lezhi Black Goat during fattening period. Forty five month old Lezhi black goat lambs weighing 21.07 鹵4.05)kg were randomly divided into 3 groups with 15 lambs in each group. The control group was fed with basic diet every day, and the experimental group was replaced by 25% and 50% silage per day, respectively. The prefeeding period was 10 days and the formal period was 40 days. The results showed that the average daily feed intake of Lezhi Black Goat during fattening period was increased significantly, and the average daily gain was increased significantly (P 0.01%, P 0.01%, P 0.01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, P 0 01%, respectively). The shoulder width of Lezhi Black Goat in different proportion of silage with different ratio of silage yellow beam to silage was significantly increased in the 50% silage yellow beam replacement group, and the eye muscle area was increased significantly (P0.05), and there was no adverse effect on the other slaughtering indexes. 3Qingqing was not affected by silage with different proportion of silage yellow beam (P 0.05, P 0.05, P 0.05, P 0.05, P 0.05, P 0. 05, P 0. 05, P 0. 05, P 0. 05). The water loss rate (P0.05N) and phenylalanine content (P0.01T50%) were significantly decreased in silage with different proportion of stored yellow-beam tree. The contents of threonine and lysine were increased significantly in the silage replacement group. The content of threonine and lysine was significantly increased in the silage replacement group (P 0.05), and the content of phenylalanine was significantly decreased in the silage with 50% silage. The results showed that different proportion of silage could improve the growth performance, slaughter performance and meat quality of Lezhi Black Goat. The effect of replacing silage maize with 50% silage was better.
【作者單位】： 華南農(nóng)業(yè)大學(xué)動(dòng)物科學(xué)學(xué)院;|竹溫氏新旺羊業(yè)有限公司;
【基金】：廣東省公益研究與能力建設(shè)專(zhuān)項(xiàng)資金項(xiàng)目[2014A020208104,2016A020210083]
【分類(lèi)號(hào)】：S827.5

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