Effect of tomato pomace and different ratios of linoleic acid to alpha-linolenic acid in starter diet on growth performance and blood metabolites in Holstein calves

开胃菜 α-亚麻酸 饲料转化率 食品科学 亚油酸 化学 动物科学 断奶 饲料添加剂 生物 生物化学 脂肪酸 多不饱和脂肪酸 体重 内分泌学 六烯酸 肉鸡
作者
Soheil Pouraghakouchak,Ahmad Riasi,Amir Hossein Mahdavi,Rasoul Kowsar,Ali Sadeghi‐Sefidmazgi,Hassan Rafiee,Mahmoud Zeraatkar
出处
期刊:Animal Feed Science and Technology [Elsevier BV]
卷期号:293: 115469-115469
标识
DOI:10.1016/j.anifeedsci.2022.115469
摘要

The present study aimed to investigate the effect of using tomato pomace (TP) in the starter feed containing different ratios of linoleic acid to alpha-linolenic acid by including pure fat powder or calcium salt of flaxseed oil (FO) on growth performance and blood metabolites in calves before and after weaning. For this purpose, 48 7-day-old Holstein calves were allocated to 1 of 4 treatments in a 2 × 2 factorial arrangement: starter feed without TP and FO (NTP-NFO; ratio of C18:2 to C18:3 = 12.39), starter feed containing 25 g/kg calcium salt of FO without TP (NTP-FO; ratio of C18:2 to C18:3 = 2.54), starter feed containing 100 g/kg TP without FO (TP-NFO; ratio of C18:2 to C18:3 = 12.21), and starter feed containing 25 g/kg calcium salt of FO and 100 g/kg TP (TP-FO; ratio of C18:2 to C18:3 = 2.48). All calves were weaned gradually from d 51–56 and remained in the trial until d 70 of the study. Results showed that TP × FO interaction was observed for several traits, whereby FO increased days in diarrhea, fecal score, and superoxide dismutase concentration and decreased insulin concentration when diet had not TP, but had the opposite effect when diets had TP. Furthermore, FO supplementation decreased starter feed intake in NTP diets and increased it in TP diets. The TP had no significant effects on final body weight (BW) and feed efficiency; however, TP-fed calves tended to have greater white blood cells and had greater neutrophil and lower low dencity lipoprotein (LDL) concentrations than NTP-fed calves. Moreover, calves fed starter feed containing TP had greater ruminal butyrate concentration than NTP-fed calves. Calves that received FO treatments had lower BW and starter feed intake and tended to have lower average daily gain (ADG) than those that did not receive FO. Regardless of TP, feeding FO increased eosinophils and decreased malondialdehyde compared with unsupplemented calves. Overall, our results showed that supplementation of starter feed with 100 g/kg TP adversely affected calves' performance. Also, adding 25 g/kg of FO in starter feed decreased calves' BW and starter feed intake, indicating that dietary FO may be less effective at improving performance during the early months of life. Calves fed TP-FO treatment had better performance than calves fed TP or FO alone, which indicates the synergic effect between TP and FO on the performance and health of dairy calves. • Usage of 10% of tomato pomace had no adverse effect on calves' performance. • Adding 2.5% of flaxseed oil decreased calves' BW and increased fecal score. • Tomato pomace and flaxseed oil had synergic effect on calves’ performance.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
V_I_G完成签到 ,获得积分10
1秒前
nick完成签到,获得积分10
2秒前
高高高完成签到 ,获得积分10
5秒前
彪壮的亦瑶完成签到 ,获得积分10
6秒前
科研通AI2S应助科研通管家采纳,获得10
8秒前
Perry应助科研通管家采纳,获得60
8秒前
Akim应助科研通管家采纳,获得10
8秒前
鱼雷完成签到,获得积分10
9秒前
廿伊发布了新的文献求助10
11秒前
我是125完成签到,获得积分10
13秒前
依人如梦完成签到 ,获得积分10
14秒前
15秒前
PDIF-CN2完成签到,获得积分10
19秒前
雪雪完成签到 ,获得积分10
20秒前
21秒前
Willow完成签到,获得积分10
24秒前
研研研完成签到,获得积分10
25秒前
大橙子发布了新的文献求助10
27秒前
dejiangcj完成签到 ,获得积分10
28秒前
无味完成签到,获得积分10
29秒前
大气的尔蓝完成签到,获得积分10
30秒前
科研通AI5应助普鲁卡因采纳,获得10
31秒前
略略略完成签到 ,获得积分10
33秒前
zqlxueli完成签到 ,获得积分10
37秒前
无语的断缘完成签到,获得积分10
39秒前
hdx完成签到 ,获得积分10
40秒前
健壮的涑完成签到 ,获得积分10
41秒前
量子星尘发布了新的文献求助10
45秒前
普鲁卡因发布了新的文献求助10
45秒前
高大绝义完成签到,获得积分10
47秒前
49秒前
黄超超发布了新的文献求助10
50秒前
ZEcholy完成签到 ,获得积分20
50秒前
大橙子发布了新的文献求助10
51秒前
小幸运完成签到,获得积分10
53秒前
淡然一德完成签到,获得积分10
56秒前
咖啡豆完成签到 ,获得积分10
57秒前
58秒前
龙猫爱看书完成签到,获得积分10
58秒前
you完成签到,获得积分10
59秒前
高分求助中
【提示信息,请勿应助】关于scihub 10000
Les Mantodea de Guyane: Insecta, Polyneoptera [The Mantids of French Guiana] 3000
徐淮辽南地区新元古代叠层石及生物地层 3000
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
Handbook of Industrial Diamonds.Vol2 1100
Global Eyelash Assessment scale (GEA) 1000
Picture Books with Same-sex Parented Families: Unintentional Censorship 550
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 4038128
求助须知:如何正确求助?哪些是违规求助? 3575831
关于积分的说明 11373827
捐赠科研通 3305610
什么是DOI,文献DOI怎么找? 1819255
邀请新用户注册赠送积分活动 892655
科研通“疑难数据库(出版商)”最低求助积分说明 815022