Association between chitosan and sources of unsaturated fatty acids improvement the ruminal fermentation, omasal outflow and rumen dynamics of lactating Jersey cows.

IF 2 3区 农林科学 Q1 AGRICULTURE, DAIRY & ANIMAL SCIENCE
Olga Cedro de Menezes, Vinícius M De Carvalho, Victor H O de Queiroz, Camilla A Do N Rezende, Quésia G Costa, Layse A Gordiano, Maria L G M L de Araújo, Cláudio V D M Ribeiro, Arlindo S Netto, Polyana P Rotta, Douglas Dos S Pina, Gleidson G P de Carvalho, Lara M S Brant, Marcus V G Loiola, José E De Freitas Júnior
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Abstract

The objective of this study was to evaluate the effects of chitosan (CH), with or without the inclusion of unsaturated fatty acid (UFA) sources, on intake and digestibility, ruminal fermentation, microbial protein synthesis, nitrogen balance, blood metabolites, milk production and composition, and ruminal dynamics and flow in lactating Jersey cows. Five rumen-fistulated Jersey cows [average days in milk = 105 ± 45 days; milk production = 18.0 ± 0.47 kg/day; body weight = 350 ± 25 kg] were used in a 5 × 5 Latin square design with 21-day periods. Five experimental diets were evaluated: (1) Control (CON), basal diet including 30 g/kg of palm oil; (2) (SOCH-) inclusion of 30 g/kg soybean oil (SO) without CH; (3) (WSCH-) inclusion of 160 g/kg whole raw soybeans (WS) without CH; (4) (SOCH+) inclusion of 30 g/kg SO and 2 g/kg CH; (5) (WSCH+) inclusion of 160 g/kg WS and 2 g/kg CH. There was a CH and UFA interaction effect on acetate (C2) concentration (p = 0.005), propionate (C3) concentration (p = 0.008), the C2:C3 ratio (p < 0.001), and the milk fat content of trans-9 C18:1 fatty acid (FA) (p = 0.004). The inclusion of SO, with or without CH, proved to be more active in improving ruminal fermentation patterns by increasing propionate concentration. Furthermore, incorporating SO into the diets of lactating Jersey cows increased CLA, particularly cis-9, trans-11, in milk fat, offering health benefits. We recommend further research to assess the effects of UFA supplementation in combination with CH.

壳聚糖与不饱和脂肪酸来源的关联改善了泌乳泽西奶牛瘤胃发酵、泌胃流出和瘤胃动力学。
本研究旨在评价壳聚糖(CH)对泌乳泽西奶牛采食量和消化率、瘤胃发酵、微生物蛋白合成、氮平衡、血液代谢产物、产奶量和乳成分以及瘤胃动力学和流量的影响。瘤胃瘘泽西奶牛5头[平均泌乳天数= 105±45天;产奶量= 18.0±0.47 kg/天;体重= 350±25 kg],采用5 × 5拉丁方设计,周期21 d。试验选取5种试验饲粮:(1)对照(CON),基础饲粮中添加30 g/kg棕榈油;(2) (SOCH-)不含CH的30 g/kg大豆油(SO);(3) (WSCH-)添加160 g/kg不含CH的全生大豆(WS);(4) (SOCH+)含30 g/kg SO和2 g/kg CH;(5)添加160 g/kg WS和2 g/kg CH (WSCH+)。CH和UFA对乙酸(C2)浓度(p = 0.005)、丙酸(C3)浓度(p = 0.008)、C2:C3比(p < 0.001)和反式-9 C18:1脂肪酸(FA)乳脂含量(p = 0.004)有互作效应。事实证明,添加或不添加CH的SO通过增加丙酸浓度来改善瘤胃发酵模式更为活跃。此外,将SO添加到泌乳泽西奶牛的日粮中可以增加乳脂中的CLA,特别是顺式-9和反式-11,对健康有益。我们建议进一步的研究来评估UFA与CH联合补充的效果。
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来源期刊
Archives of Animal Nutrition
Archives of Animal Nutrition 农林科学-奶制品与动物科学
CiteScore
3.90
自引率
5.00%
发文量
31
审稿时长
>24 weeks
期刊介绍: Archives of Animal Nutrition is an international journal covering the biochemical and physiological basis of animal nutrition. Emphasis is laid on original papers on protein and amino acid metabolism, energy transformation, mineral metabolism, vitamin metabolism, nutritional effects on intestinal and body functions in combination with performance criteria, respectively. It furthermore deals with recent developments in practical animal feeding, feedstuff theory, mode of action of feed additives, feedstuff preservation and feedstuff processing. The spectrum covers all relevant animal species including food producing and companion animals, but not aquatic species. Seldom can priority be given to papers covering more descriptive studies, even if they may be interesting and technically sound or of impact for animal production, or for topics of relevance for only particular regional conditions.
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