共查询到19条相似文献，搜索用时 187 毫秒
1.
分析添加尿素和废糖蜜对青贮菠萝茎叶营养成分的影响,并测定青贮后菠萝茎叶养分的瘤胃降解率。为提高菠萝茎叶的饲料化利用提供理论依据。试验以直接青贮菠萝茎叶为对照组,分别添加10 g/kg尿素、20 g/kg废糖蜜、10 g/kg尿素+20 g/kg废糖蜜为试验组,青贮45 d后进行营养成分、养分的瘤胃降解分析。结果表明:与对照组相比,添加10 g/kg尿素青贮菠萝茎叶可以显著降低单宁含量,提高粗蛋白(CP)、氨态氮(NH3-N)含量(p0.05);添加20 g/kg废糖蜜,CP、单宁含量显著提高(p0.05);添加10 g/kg尿素+20 g/kg废糖蜜,CP、NH3含量提高,乙酸含量降低,差异显著(p0.05);3个试验组中,DM、CP、中性洗涤纤维(NDF)在瘤胃内经72 h后的降解率均显著高于对照组(p0.05)。本试验中,添加10 g/kg尿素+20 g/kg废糖蜜可以显著提高青贮菠萝茎叶的品质,并提高青贮菠萝茎叶养分的瘤胃降解率。 相似文献
2.
《中国麻业》2016,(5)
探讨甲酸和蔗糖两种添加剂对红麻青贮的影响。以刈割后的红麻为青贮原料,添加不同计量的蔗糖(10 g/kg,15 g/kg和20 g/kg)和甲酸(3 m L/kg,6 m L/kg和9 m L/kg),并分别设空白对照,密封青贮60 d后分析。结果显示,添加蔗糖或者甲酸能够显著提高粗蛋白含量(P0.05)和可溶性碳水化合物含量(P0.05)降低红麻青贮饲料的PH值,实验组p H均小于4.0,乳酸含量显著增加(P0.05),氨态氮含量显著降低(P0.05),实验组均没有检测到丁酸含量,青贮发酵品质良好;且在本实验研究范围内认为,添加20 g/kg的蔗糖得到的红麻青贮饲料的品质优于其他实验组,添加9 m L/kg的甲酸得到的红麻青贮饲料的品质优于其他实验组。 相似文献
3.
为研究播期和播量对大麦新品种盐麦7号青贮原料产量和品质等的影响,设计2个播期(11月1日和11月10日)、3个播量(15.0、17.5、20.0 kg/667 m2),研究其对盐麦7号青贮原料农艺性状、产量、品质和籽粒产量的影响。结果表明,与正常播期(11月1日)相比,晚播环境下(11月10日)冬前苗、干物质含量、粗淀粉含量显著下降,中性洗涤纤维、酸性洗涤纤维含量及30 h中性洗涤纤维消化率显著上升;随着播量的升高,基本苗、冬前苗、有效穗数、株高、产量、籽粒产量显著上升,酸性洗涤纤维和30 h中性洗涤纤维消化率显著下降。总体来看,播期主要影响盐麦7号的青贮原料品质相关性状,播量主要影响盐麦7号的产量相关性状,盐麦7号在11月1日播种,播量20.0 kg/667 m2时可以获得较高的青贮原料产量和品质。 相似文献
4.
为了改善木薯叶青贮品质,研究有机酸对木薯叶青贮品质及营养成分的影响,以确定青贮木薯叶最适合的有机酸种类及添加量。本研究以华南7号木薯幼嫩茎叶为原料进行青贮试验,设对照组、甲酸（0.2%）、乙酸（0.2%）和丙酸（0.2%）处理组,30 d后测定木薯叶青贮饲料pH、乳酸（LA）、乙酸（AA）、丙酸（PA）和丁酸（BA）含量以及主要营养成分含量。结果表明,木薯叶直接青贮品质较差,添加有机酸处理与对照相比显著降低青贮饲料的pH和丁酸含量（P<0.05）,降低中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）含量（P<0.05）,提高了饲料相对值（RFV）。添加有机酸可以改善木薯叶青贮品质并提高营养价值,添加乙酸（0.2%）和丙酸（0.2%）青贮品质较好,可作为木薯叶青贮添加剂。 相似文献
5.
6.
研究柱花草菠萝皮不同比例混合青贮发酵品质。试验设4个处理，分别为100 %柱花草单独青贮(CK)、70 %柱花草+30 %菠萝皮(SP1)、60 %柱花草+40 %菠萝皮(SP2)、50 %柱花草+50 %菠萝皮(SP3)，青贮30 d后开窖取样，测定青贮饲料发酵品质。结果表明：与对照组相比，柱花草与菠萝皮混合青贮显著提高了乳酸含量，显著降低了pH值、丁酸和氨态氮/总氮，提高了发酵品质；各混合组随菠萝皮混合比例增大，乳酸增多，pH值和丁酸降低；SP2、SP3处理组pH值、乙酸、丙酸、挥发性脂肪酸和氨态氮/总氮无显著差异。从发酵品质和菠萝皮利用角度出发，50 %菠萝皮和柱花草混合青贮是可行的。 相似文献
7.
为合理开发和利用热带牧草资源，研究热研2号柱花草和热研4号王草混合青贮对其营养成分及发酵品质的影响，以期筛选出适宜的混合青贮比例，为调制高品质的青贮饲料提供理论依据。本研究将热研4号王草和热研2号柱花草混合青贮比例分别设置为100∶0(CK)、85∶15(A1)、70∶30(A2)、55∶45(A3)4组，青贮30 d后开封取样检测。结果表明：A2组混合青贮感官评价最佳，随着热研2号柱花草比例的升高，pH和氨态氮/总氮（NH3-N/TN）值逐渐升高，A1、A2、A3组与CK组差异显著（P<0.05）；乳酸（LA）含量逐渐降低，A3组显著低于CK组（P<0.05）；各试验组乳酸/乙酸（LA/AA）值均大于2.6；且A2组丁酸（BA）显著低于其他各处理组（P<0.05）。随着热研2号柱花草比例升高，各处理组粗蛋白（CP）、干物质（DM）和粗脂肪（EE）含量随之升高，且显著高于CK组（P<0.05）；水溶性碳水化合物（WSC）含量呈上升趋势，且各试验组差异不显著（P>0.05）；中性洗涤纤维（NDF）逐渐降低，且各处理组间差异不显著（P>0.05）；各试验... 相似文献
8.
为有效利用热区农业废弃物砂仁茎叶及优质牧草资源,添加不同比例的砂仁茎叶与‘热研4号’王草混合青贮,研究其对王草营养成分和发酵品质的影响,筛选最佳混合青贮比例,以期提高饲料营养品质。按照完全随机设计试验,鲜重基础条件下,‘热研4号’王草和砂仁茎叶的混合比例依梯度分为100∶0（对照组）、90∶10（A1组）、80∶20（A2组）、70∶30（A3组）,每组均加入10 mg/kg的EM菌,青贮30 d后开封进行检测分析。结果表明：各试验组乳酸（LA）/乙酸（AA）比值均大于2,均有少量丙酸（PA）和丁酸（BA）检出。A2和A3组感官品质为优良;随着砂仁茎叶比例升高,青贮料pH显著升高,各处理组的干物质（DM）、粗蛋白（CP）、粗脂肪（EE）和粗灰分（ASH）均呈现上升趋势;铵态氮/总氮（NH3-N/TN）、LA和AA含量逐渐降低,且A3组NH3-N/TN显著低于CK和A1组（P<0.05）;各处理组LA和AA含量显著低于对照组（P<0.05）,但各处理组间LA和AA含量差异不显著（P>0.05）;A3组的DM、CP、EE和ASH含量显著高于CK（P<0.05）,水溶性碳水化合物（WSC）含量显著低于CK（P<0.05）,且A1、A2和A3组间差异不显著（P>0.05）,中性洗涤纤维（NDF）和酸性洗涤纤维（ADF）含量显著低于CK（P<0.05）;从营养价值和发酵品质考虑,建议砂仁茎叶与‘热研4号’王草以30∶70比例混合青贮较为适宜。 相似文献
9.
施用不同有机肥对甜高粱产量和品质的影响 总被引：1，自引：0，他引：1
《作物研究》2017,(5)
以饲用甜高粱(Sorghum saccharatum Moench)品种‘大力士’为材料,鸡粪、生物炭为基肥,研究了不同有机肥对甜高粱产量和品质的影响。结果表明,鸡粪和生物炭混施作为基肥的情况下,饲用甜高粱生长速度最快,产量最高;单独施用鸡粪时,甜高粱中性洗涤纤维含量降低,酸性洗涤纤维、粗蛋白、粗脂肪与吸附水含量逐渐得到提升,但处理间差异不显著;单施生物炭作为基肥,能提高植株生长速度和干物质产量,但效果不显著,相对于单施鸡粪作为基肥,可以显著提高粗灰分含量。综合比较来看,施用3 kg/m2生物炭+2 kg/m2鸡粪处理对甜高粱产量和品质效果最好。 相似文献
10.
研究了王草菠萝皮不同比例混合青贮发酵品质。试验设5个处理,分别为王草单独青贮(CK)、90 %王草+10 %菠萝皮(KP1)、80 %王草+20 %菠萝皮(KP2)、70 %王草+30 %菠萝(KP3)、60 %王草+40 %菠萝皮(KP4)。青贮后第1、3、5、7、14、30天开窖取样,测定青贮饲料发酵品质。结果表明：与对照相比,王草与菠萝皮混合青贮显著提高了乳酸含量,显著降低了pH值和氨态氮/总氮;各混合处理组均未检测到丁酸,pH值、乙酸、丙酸、挥发性脂肪酸和氨态氮/总氮无显著差异。从发酵品质和菠萝皮利用角度出发,40 %菠萝皮和王草混合青贮是可行的。 相似文献
11.
Protein supplementation of formic acid- and enzyme-treated silages. 2. Nitrogen and amino acid digestion 总被引：1，自引：0，他引：1
Two silages were made from primary growth perennial ryegrass and ensiled after the application of either formic acid or an enzyme mixture of cellulase and hemicellulase. Silage analysis showed both silages to be well preserved with low pH of 3·70 and 3·62 for the formic and enzyme treatments respectively. Formic acid-treated silage had a higher total amino acid concentration than enzyme-treated silage. The silages were offered to growing steers either as the sole diet or supplemented with rapeseed meal at 60 g or 120 g fresh weight kg−1 silage DM offered, in a 6 × 6 Latin square arrangement.
Non-ammonia nitrogen and microbial nitrogen flows at the duodenum (g d−1 ) were significantly ( P < 0·05) increased by supplementation of enzyme-treated silage compared with formic acid-treated silage (enzyme, 83·6, 58·7; enzyme + 60 g, 101·7, 75·3; enzyme + 120 g, 112·5, 80·7; formic, 91·9, 63·7; formic + 60g, 88·3, 67·9; formic + 120 g, 95·5, 67·1) respectively. Efficiencies of microbial protein synthesis were increased for supplemented enzyme-treated silage diets and values were reduced for supplemented formic acid-treated silage diets compared with the silage only diets (enzyme, 27·9; enzyme + 60 37·7; enzyme + 120 g, 38·6; formic, 33·7; formic + 60g, 31·2; formic + 120 g, 28·8). Total amino acid flow at the duodenum increased with supplementation of both silages; however, microbial amino acid flow increased significantly ( P < 0·05) with supplementation of enzyme-treated silage compared with formic acid-treated silage diets. Significantly greater amounts of cystine, methionine, alanine, valine and aspartic acid entered the small intestines of animals receiving supplemented enzyme silages compared with supplemented formic acid silages. 相似文献
Non-ammonia nitrogen and microbial nitrogen flows at the duodenum (g d
12.
Two silages were made from perennial ryegrass ensiled without wilting in 2-t capacity silos with the application of either formic acid or an enzyme mixture of cellulases and hemicellulases. Effluent losses were monitored over the ensiling period. Subsequent silage analysis showed that the enzyme-treated silage had higher concentrations of residual water soluble carbohydrate, lactic acid and acetic acid, and lower concentrations of cellulose, ADF and NDF. Effluent production was higher with the enzyme silage (formic acid, 211 1 t?1; enzyme, 2671 t?1). The silages were either offered as the sole diet or supplemented with rapeseed meal at two levels (60 or 120 g fresh weight kg?1 silage DM offered) to growing steers equipped with rumen cannulae and T-piece duodenal cannulae. Apparent whole tract digestibilities for DM, OM, N, ADF and NDF were similar for all diets although nitrogen retention (g d?1) was increased with supplementation of both silages (formic acid, 21·1; formic acid + 60 g, 23·5; formic acid+ 120 g, 28·5; enzyme, 22·6; enzyme + 60 g, 25·8; enzyme+ 120 g, 31·6). Rumen pH, ammonia and total volatile fatty acids patterns were similar. Supplementation increased the amount of organic matter apparently digested in the rumen (ADOMR) with formic acid-treated silage but not with enzyme-treated silage. Liveweight gains were similar for both unsupplemented silages (0·49 kg d?1). These increased to 0·55 and 0·65 kg d?1 for formic + 60 and formic + 120 respectively. Liveweight gains for the corresponding enzyme-treated supplemented diets were 0·81 and 0·91 kg d?1 respectively. Liveweight gains on supplemented enzyme-treated diets were significantly (P < 0·05) greater than those on formic acid-treated diets. 相似文献
13.
Sadhana Joshi Vaishali Agte 《Plant foods for human nutrition (Dordrecht, Netherlands)》1995,48(1):39-44
Digestibility of fiber components namely neutral detergent fiber (total content of cellwall) cellulose, hemicellulose and lignin are estimated in 14 healthy vegetarian men during adlibitum feeding and at 3 energy levels namely 2526, 2868 and 3290 kcals/day. Values of digestibility for adlibitum experiments were 34.17±2.3 for neutral detergent fiber (NDF), 30.1±3.9 for cellulose and 53.4±3.0 for hemicellulose and 8.1±2.6 for lignin. There was a considerable variability in digestibility of fiber components between individuals. 相似文献
14.
巴西橡胶树是一种重要的热带作物。以巴西橡胶树‘热研7-33-97’处于减数分裂四分体时期的幼嫩雄花为试验材料来获取单细胞,利用5%纤维素酶、5%果胶酶、5% β-葡聚糖酶、5%纤维素酶与4%果胶酶混合酶4种酶液,探索酶解四分体胼胝质的最佳方案。结果表明：在37℃条件下酶解1 h,5%纤维素酶与4%果胶酶混合酶的酶解效果最佳,可得到品质良好的小孢子单细胞。通过对拉制针尖细长度、磨针斜口直径以及显微操作分离体系的不断探索与试验,成功建立一套适合巴西橡胶树‘热研7-33-97’小孢子单细胞的显微分离技术体系。小孢子单细胞是减数分裂的直接产物,对小孢子单细胞进行分离并分析可精确解析橡胶树减数分裂过程中基因的重组与交换,确定橡胶树基因组的变异情况。该研究结果将为橡胶树单细胞全基因组测序提供理论与技术支持。 相似文献
15.
Enzymes as silage additives. 1. Silage quality, digestion, digestibility and performance in growing cattle 总被引：5，自引：0，他引：5
Four grass silages were made from perennial ryegrass ensiled after a 1h wilt in 2-t silos without additive application, with application of formic acid or with one of two enzyme mixtures of hemicellulases and cellulases (enzyme 1 and enzyme 2). Effluent losses were monitored over the ensiling period (130 d).
Analyses of the silage showed that formic acid-treated silage had lower concentrations of lactic acid than the other silages. Both enzyme-treated silages had lower levels of cellulose, acid detergent fibre (ADF) and neutral-detergent fibre (NDF) than the untreated and formic acid treated silages. Effluent production was highest with enzyme-treated silages.
The silages were subsequently fed to growing steers equipped with rumen cannulae and T-piece duodenal cannulae. Apparent whole-tract digestibilities of organic matter constituents were significantly lower ( P < 0·05) with both enzyme-treated silages (untreated; 0·736, formic acid; 0·722, enzyme 1; 0·694, enzyme 2; 0·703). Both untreated and enzyme 2-treated silages sustained higher nitrogen digestibilities (g g−1 intake) (untreated; 0·675, formic acid; 0·636, enzyme 1; 0·630, enzyme 2; 0·662) and N retentions (g d−1 ) untreated; 16·0, formic acid; 14·0, enzyme 1; 11·6, enzyme 2; 16·6), but none of these differences was significant. When formic acid-treated silage was offered, there was a greater amount of organic matter apparently digested in the rumen (ADOMR). Non-ammonia nitrogen and microbial nitrogen flows at the duodenum were similar on all diets. The efficiency of microbial protein synthesis was highest with enzyme 2-treated silage and lowest with formic acid-treated silage (untreated, 35·4; formic acid, 25·2; enzyme 1, 30·4; enzyme 2, 39·4), but none of these differences were significant. 相似文献
Analyses of the silage showed that formic acid-treated silage had lower concentrations of lactic acid than the other silages. Both enzyme-treated silages had lower levels of cellulose, acid detergent fibre (ADF) and neutral-detergent fibre (NDF) than the untreated and formic acid treated silages. Effluent production was highest with enzyme-treated silages.
The silages were subsequently fed to growing steers equipped with rumen cannulae and T-piece duodenal cannulae. Apparent whole-tract digestibilities of organic matter constituents were significantly lower ( P < 0·05) with both enzyme-treated silages (untreated; 0·736, formic acid; 0·722, enzyme 1; 0·694, enzyme 2; 0·703). Both untreated and enzyme 2-treated silages sustained higher nitrogen digestibilities (g g
16.
湘饲纤兼用苎1号是从地方品种咸丰大叶绿的自然变异单株中系统选育的新品种,既可以作为饲用苎麻栽培也可以作为常规纤维用苎麻栽培。2年5点饲用区域试验结果显示:鲜产量为123148.9~138624.7kg/hm^2,平均鲜产量131936.9kg/hm^2,比对照增产17.15%~20.34%,且丰产稳产性好;粗蛋白含量在22.5%,优于对照,粗纤维含量18.5%、粗脂肪含量6.5%、灰分含量13.6%、钙含量3.6%,均低于对照,磷含量0.4%左右,与对照无差异。纤维用区域试验结果显示:平均纤维产量2599.5kg/hm2,比对照平均值低5.2%左右;生产试验平均纤维产量为2676kg/hm2,减产6.5%以内;平均纤维支数2394.8支,比对照湘苎3号和中苎1号分别提高15.22%、22.06%。表明湘饲纤兼用苎1号是一个高产优质的饲纤兼用苎麻新品种。 相似文献
17.
A randomized block design experiment involving thirty beef cattle (mean initial live weight 462 kg) was carried out to evaluate a bacterial inoculant based on a single strain of Lactobacillus plantarum as a silage additive and to provide further information in relation to its mode of action. Three herbages were harvested on 10 August 1989 using three double-chop forage harvesters from the first regrowth of a perennial ryegrass sward which had received 170 kg N, 25 kg P2O5, and 42 kg K2O ha?1. They received either no additive (silage C), formic acid at 2·91 (t grass)?1(silage F) or the inoculant at 3·21 (t grass)?1 (silage I). Mean dry-matter (DM), water-soluble carbohydrate and crude protein concentrations in the untreated herbages were 158g kg?1, 88 g (kg DM)? and 183g (kg DM)?1 respectively. For silages C, F and I respectively, pH values were 4·01, 3·57 and 3·62; ammonia N concentrations 117, 55 and 77 g (kg total N)?1; and butyrate concentrations 2·18, 0·50 and l·24g (kg DM)?1. The silages were offered ad libitum and supplemented with 2·5 kg concentrates per head daily for 77 days. For treatments C, F and I, silage DM intakes were 6·59, 7·25 and 6·80 (s.e. 0·074)kg d?1; metabolizable energy (ME) intakes 86,99 and 94 (s.e. 0·8) MJ d?1; liveweight gains 0·90, 0·97 and 1·02(s.e.0·066) kg d?1; carcass gains 541,656 and 680 (s.e. 34·0) g d?1. Inoculant treatment increased DM (P < 0·01), organic matter (P < 0·01), crude fibre (P < 0·05), neutral detergent fibre (NDF) (P < 0·05) and energy (P < 0·05) digestibilities, the digestible organic matter concentration (P < 0·01) and the ME concentration (P < 0·05) of the total diets. Additive treatment altered rumen fermentation patterns but had little effect on the rumen degradability of silage DM, modified acid detergent (MAD) fibre, NDF or hemicellulose. It is concluded that treatment with the inoculant improved silage fermentation and increased digestibility, had little effect on silage DM intake but significantly increased carcass gain to a level similar to that sustained by a well-preserved formic acid-treated silage 相似文献
18.
The effect of cell wall degrading enzymes or formic acid on fermentation quality and on digestion of grass silage by cattle 总被引：1，自引：0，他引：1
A first cut of timothy, treated with water (untreated), formic acid (FA), cellulase + lactic acid bacteria (CB), cellulase + hemicellulase (CH) or cellulase + hemicellulase + a lignin-modifying enzyme (CHL), was ensiled in pilot-scale silos. Silages, except CB, were fed to four male cattle, each equipped with a rumen and duodenal cannula, in a digestibility trial designed as a 4 × 4 Latin square. The animals were fed a diet of 400 g of concentrate and 600 g of silage at a level of 70 g DM kg?1 live weight (LW0·75). All enzyme-treated silages were well-preserved with a more extensive fermentation than in FA silage. The quality of untreated silage was poorer as indicated by higher pH and ammonia-N content. The amount of effluent from enzyme-treated silages ranged from 116 to 127 g kg?1; for FA and untreated silages values were 101 g kg?1 and 80 g kg?1, respectively. Total DM losses from enzyme-treated silages were higher than from FA silage (P < 0·05). No significant differences were noticed between silages in the apparent digestibility of organic matter (OM), neutral-detergent fibre (NDF), acid-detergent fibre (ADF) or nitrogen (N). The apparent digestibility of cellulose was higher with enzyme-treated silages than with FA silage (P < 0·05). The values for microbial N flow at the duodenum were 80·0, 91·9, 80·7 and 70·5g N d?1, and for the efficiency of rumen microbial N synthesis 38·6, 47·6, 36·9 and 32·5 g N kg?1 OM apparently digested in the rumen for untreated, FA, CH and CHL silages, respectively. In the rumen the molar proportion of propionate was higher (P < 0·01) and that of butyrate lower (P < 0·01) with enzyme-treated silages when compared with FA silage. The proportion of butyrate was also lower with untreated than with other silages (P < 0·01). The rumen residence time of NDF and ADF was longer (P < 0·05) with enzyme-treated silages than with FA silage. 相似文献
19.
Effect of silage additives and wilting on silage fermentation, digestibility and intake, and on liveweight change of young cattle 总被引：1，自引：0，他引：1
Data from thirty-three experiments conducted at three ADAS Experimental Husbandry Farms were used to compare unwilted non-additive-treated silage with silage treated with formic acid, a formalin and formic-acid mixture, a calcium-formate and sodium-nitrite mixture, a formalin and sulphuric-acid mixture and wilted silage made without or with formic acid or a formalin and formic-acid mixture.
Formic acid significantly reduced pH and wilting significantly increased silage pH compared with other treatments. Formalin-acid mixtures significantly reduced pH compared with untreated silage. Formic acid in conjunction with formalin or wilting significantly increased water-soluble carbohydrate in silage compared with other treatments except wilting. Formic acid either alone or combined with either formalin or wilting significantly reduced silage butyric acid content compared with other treatments. Formic acid treatment either alone or combined with formalin significantly increased lactic acid as a proportion of total silage acids compared with other treatments except sulphuric acid-formalin.
All treatments significantly increased silage dry matter (DM) intake compared with untreated silage and intakes of wilted silage were significantly greater than of unwilted silage. Daily liveweight gains on all treatments were significantly higher than on untreated silage.
Herbage water-soluble carbohydrate necessary for successful preservation as silage without additive use was approximately 30 g (kg DM)−1 and with additives containing formic acid it was approximately 25 g (kg DM)−1 .
It is suggested that formic acid application to unwilted silage either alone or in conjuction with formalin was the best treatment for improving subsequent preservation as silage, and that animal performance was enhanced by addition of acid-formalin additives to unwilted herbage or formic-acid application to unwilted or wilted herbage. 相似文献
Formic acid significantly reduced pH and wilting significantly increased silage pH compared with other treatments. Formalin-acid mixtures significantly reduced pH compared with untreated silage. Formic acid in conjunction with formalin or wilting significantly increased water-soluble carbohydrate in silage compared with other treatments except wilting. Formic acid either alone or combined with either formalin or wilting significantly reduced silage butyric acid content compared with other treatments. Formic acid treatment either alone or combined with formalin significantly increased lactic acid as a proportion of total silage acids compared with other treatments except sulphuric acid-formalin.
All treatments significantly increased silage dry matter (DM) intake compared with untreated silage and intakes of wilted silage were significantly greater than of unwilted silage. Daily liveweight gains on all treatments were significantly higher than on untreated silage.
Herbage water-soluble carbohydrate necessary for successful preservation as silage without additive use was approximately 30 g (kg DM)
It is suggested that formic acid application to unwilted silage either alone or in conjuction with formalin was the best treatment for improving subsequent preservation as silage, and that animal performance was enhanced by addition of acid-formalin additives to unwilted herbage or formic-acid application to unwilted or wilted herbage. 相似文献