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https://www.readbyqxmd.com/read/29652436/quick-changes-of-milk-fatty-acids-after-inclusion-or-suppression-of-linseed-oil-in-the-diet-of-goats
#1
Pilar Gómez-Cortés, Alfonso Cívico, Miguel Angel de la Fuente, Nieves Núñez Sánchez, Manuela Juárez, Francisco Peña Blanco, Andrés L Martínez Marín
BACKGROUND: Lipid supplementation of ruminant diet is an excellent tool to improve the nutritional quality of dairy fat. The purpose of this research was to monitor in detail the goat milk fatty acid (FA) profile during the first 24 h after linseed oil (LO) supplementation or suppression in the diet. Particular emphasis was placed in the changes of FA with bioactive properties. Milk fat was analysed by gas chromatography from milkings at 0, 1, 3, 6, 12 and 24 h after diet shift. RESULTS: The α-linolenic acid levels increased 12 h after LO incorporation in the diet and decreased 3 h after oil suppression...
April 13, 2018: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/29644024/a-comparative-study-on-physicochemical-characteristics-of-raw-goat-milk-collected-from-different-farms-in-malaysia
#2
Syarifah Hazirah Syd Jaafar, Roshada Hashim, Zaiton Hassan, Norlelawati Arifin
This study was conducted to determine the physical and chemical composition of goat milk produced by eight local farms located in the central region of Malaysia. Farms 1 to 4 (F1-SC, F2-SP, F3-SP, F4-SBC) reared Saanen-type goats while farms 5 to 8 (F5-JK, F6-JPEC, F7-JTC, F8-JC), Jamnapari-type goats. The common feedstuffs used in all farms comprised of fresh or silage from Napier grass, feed pellets, and brans while two farms, F5-JK and F6-JPEC supplemented the feeds with soybean-based product. The total solid content, dry matter, and proximate composition of goat milk and feedstuffs from the different farms were determined and the results analysed using principal component analysis...
March 2018: Tropical Life Sciences Research
https://www.readbyqxmd.com/read/29621535/coxiella-burnetii-in-dairy-goats-with-a-history-of-reproductive-disorders-in-brazil
#3
Júnior Mário Baltazar de Oliveira, Tatiana Rozental, Elba Regina Sampaio de Lemos, Danielle Forneas, Luis Miguel Ortega-Mora, Wagnner José Nascimento Porto, Andréa Alice da Fonseca Oliveira, Rinaldo Aparecido Mota
Coxiella burnetii, an intracellular bacterium, is the agent of Q fever/coxiellosis, a worldwide zoonosis. Dairy animals are the primary reservoirs of C. burnetii, and although the disease is usually asymptomatic or subclinical, abortion is a serious clinical outcome among small ruminants. This study was conducted to investigate C. burnetii seroprevalence and infection In a flock of dairy goats in Brazil. Serum samples from 312 goats collected from a dairy goat flock with a history of reproductive failure were tested by a commercial ELISA (LSIVet Ruminant Q Fever - Serum/Milk; Thermo Fisher Scientific, Lissieu, France) for anti-C...
April 3, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29621527/transmammary-transfer-of-toxicity-to-nursing-kids-from-isocoma-pluriflora-rayless-goldenrod-dosed-to-lactating-goats
#4
James A Pfister, Bryan L Stegelmeier, Stephen T Lee, T Zane Davis, Ben T Green
Rayless goldenrod (RG; Isocoma pluriflora) poisons livestock in the southwestern U.S., west Texas, and northern Mexico. The putative toxin(s) have historically been thought to be benzofuran ketones. Goats have been used successfully as a model of RG poisoning. The transmammary transfer of toxicity to offspring from lactating goats has not been studied, thus the objective of this study was to determine if nursing kids would become poisoned via mother's milk when the dams were dosed with RG. Twelve lactating goats (6 controls and 6 treated; all with twin kids) were dosed via oral gavage with alfalfa or rayless goldenrod at 2% of BW per day for 14 days...
April 2, 2018: Toxicon: Official Journal of the International Society on Toxinology
https://www.readbyqxmd.com/read/29617866/serotonin-induces-parathyroid-hormone-related-protein-in-goat-mammary-gland
#5
W J Zang, H Li, Z F Zhang, R QuZhen, Y Z CuoMu, D K Zhang, J Luo, J J Loor, H L Zheng
During lactation, large amounts of calcium are exported from the mammary gland into milk to ensure skeletal growth of the offspring. Recent studies revealed that serotonin (5-HT) is essential to stimulate skeletal calcium resorption for milk synthesis. Our objective was to explore the correlation between circulating 5-HT and serum calcium and parathyroid hormone-related protein (PTHrP) concentrations around parturition in dairy goats. We also investigated the effect of 5-HT on PTHrP expression in cultured primary goat mammary epithelial cells (GMEC)...
April 3, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29592768/effect-of-deformation-history-on-the-stress-relaxation-behaviour-of-colombian-caribbean-coastal-cheese-from-goat-milk
#6
Diego F Tirado, Diofanor Acevedo, Ramiro Torres-Gallo
Textural attributes are a manifestation of the rheological properties and physical structure of foods, cheeses among these. In order to describe these physical properties, the objective of this work was to analyse the effect of deformation history on the stress relaxation behaviour of Colombian Caribbean coastal cheese made from goat milk with 3.75% (F1), 4.00% (F2) and 4.25% (F3) fat content, through prediction made by a four-term Prony series based on Chen's model. For this, stress relaxation data and stress relaxation spectra were analysed...
January 1, 2018: Food Science and Technology International, Ciencia y Tecnología de Los Alimentos Internacional
https://www.readbyqxmd.com/read/29577121/evaluation-of-the-nutrition-and-function-of-cow-and-goat-milk-based-on-intestinal-microbiota-by-metagenomic-analysis
#7
Zhaoxia Wang, Shuaiming Jiang, Chenchen Ma, Dongxue Huo, Qiannan Peng, Yuyu Shao, Jiachao Zhang
Milk contains nutrients needed by the body, and the main components of different animal milk vary. Accordingly, we evaluated cow and goat milk's nutrition and their effects on the gut microbiota in mice models using a high-throughput 16S rRNA sequencing technology. The intestinal microbiota of mice changed significantly after the intake of cow and goat milk, and the goat milk had a greater effect on the intestinal microbial community than the cow milk. Bifidobacterium, Allobaculum, Olsenella and Akkermansia grew significantly in both cow and goat milk groups compared with the control group, indicating that milk positively affected their growth...
March 26, 2018: Food & Function
https://www.readbyqxmd.com/read/29573797/genome-wide-association-mapping-for-type-and-mammary-health-traits-in-french-dairy-goats-identifies-a-pleiotropic-region-on-chromosome-19-in-the-saanen-breed
#8
Pauline Martin, Isabelle Palhière, Cyrielle Maroteau, Virginie Clément, Ingrid David, Gwenola Tosser Klopp, Rachel Rupp
Type traits and mammary health traits are important to dairy ruminant breeding because they influence animal health, milking ability, and longevity, as well as the economic sustainability of farms. The availability of the genomic sequence and a single nucleotide polymorphism chip in goats has opened up new fields of investigation to better understand the genes and mechanisms that underlie such complex traits and to be able to select them. Our objective was to perform a genome-wide association study in dairy goats for 11 type traits and somatic cell count (SCC) as proxies for mastitis resistance...
March 21, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29572755/optimization-of-nutrient-composition-for-producing-ace-inhibitory-peptides-from-goat-milk-fermented-by-lactobacillus-bulgaricus-lb6
#9
Guowei Shu, Xiaoyu Shi, He Chen, Zhe Ji, Jiangpeng Meng
Hypertension is a serious threat to human health and food-derived angiotensin converting enzyme (ACE; EC 3.4.15.1) inhibitory peptides can be used to regulate high blood pressure without side effects. The composition of the nutrient medium for the production of these peptides by fermenting goat milk with Lactobacillus bulgaricus LB6 was optimized to increase the ACE inhibitory activity by Box-Behnken design (BBD) of response surface methodology (RSM) in the present study. Soybean peptone, glucose, and casein had significant effects on both ACE inhibition rate and viable counts of L...
March 23, 2018: Probiotics and Antimicrobial Proteins
https://www.readbyqxmd.com/read/29550119/short-communication-phenotypic-characterization-of-total-antioxidant-activity-of-buffalo-goat-and-sheep-milk
#10
G Niero, S Currò, A Costa, M Penasa, M Cassandro, C Boselli, G Giangolini, M De Marchi
Free radicals are reactive and unstable waste scrap molecules produced by cells, responsible of damages and alteration on DNA, proteins, and fat. The daily intake of antioxidant compounds, acting against free radicals and their detrimental effects, is essential for human health. Milk contains several compounds with antioxidant activity, and the sum of their reducing potential blocking free radicals development is defined as total antioxidant activity (TAA). This novel trait has been described in literature both in individual and bulk cow milk, but there are no reports from other dairy species...
March 14, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29548460/fatty-acid-profile-of-milk-from-saanen-and-swedish-landrace-goats
#11
S Yurchenko, A Sats, V Tatar, T Kaart, H Mootse, I Jõudu
Recent years have had an increased demand for goat milk and its products. The quality of goat milk is determined, in part, by the fatty acid (FA) profile, but there is little information about breed influence on the FA profile of goat milk. The aim of this study was to describe and compare FA profiles of goat milk produced by Saanen and Swedish Landrace breeds. FA profiles were analysed by gas chromatography with a flame ionisation detector using 100 m capillary column coated with ionic liquids of extreme polarity (SLB-IL111)...
July 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29545153/sero-epidemiology-of-bluetongue-virus-btv-infection-in-sheep-and-goats-of-khyber-pakhtunkhwa-province-of-pakistan
#12
Amir Iftikhar Malik, Muhammad Ijaz, Tahir Yaqub, Muhammad Avais, Muhammad Zubair Shabbir, Hassaan Bin Aslam, Amjad Islam Aqib, Shahid Hussain Farooqi, Tayyebah Sohail, Awais Ghaffar, Ahmad Ali, Amjad Khan
Bluetongue virus (BTV) infection is an emerging hazard in small ruminants having socio-economic impacts on animals and associated people. The current study was aimed to estimate the sero-prevalence and associated risk factors in sheep and goat from Khyber Pakhtunkhwa (KP) province of Pakistan. Three distinct zones (northern, central and southern) with four districts (Mansehra, Abbottabad, Swabi, and Kohat) with a higher population of small ruminants were selected. A total of n = 408 sera originating from sheep (n = 212) and goats (n = 196) were randomly collected for detection of BTV group specific antibodies through competitive ELISA (c-ELISA)...
March 12, 2018: Acta Tropica
https://www.readbyqxmd.com/read/29540984/microbial-quality-of-and-biochemical-changes-in-fresh-soft-acid-curd-xinotyri-cheese-made-from-raw-or-pasteurized-goat-s-milk
#13
Eleni C Pappa, Thomas G Bontinis, Maria Tasioula-Margari, John Samelis
The microbiological quality of and changes in the main physicochemical parameters, together with the evolution of proteolysis, lipolysis and volatile profiles of soft Xinotyri, a traditional Greek acid-curd cheese (pH≈4.4, moisture 65%, salt 1%) made from raw (RMC) or pasteurized (PMC) goat's milk without starters, were evaluated during aerobic storage at 4o C for 60 days. No statistically significant differences between the total nitrogen (TN) and nitrogen fraction (% of TN) contents, the degradation of intact αs - or β-caseins, total free amino acid (FAA) contents, and the ratio of hydrophilic and hydrophobic peptides in the water-soluble fraction of RMC and PMC were found...
December 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/29540983/novel-approach-to-the-development-of-functional-goat-s-milk-based-beverages-using-medicinal-plant-extracts-in-combination-with-high-intensity-ultrasound-treatment
#14
Draženka Komes, Arijana Bušić, Ana Belščak-Cvitanović, Mladen Brnčić, Tomislav Bosiljkov, Aleksandra Vojvodić, Filip Dujmić
Regardless of its highly valuable nutritive composition, goat's milk is less preferred by consumers due to its specific sensory characteristics that are very often regarded as undesirable. On the other hand, traditional medicinal plants from Lamiaceae family, due to their rich bioactive composition, especially polyphenols, and desirable aroma profile, can be used to enhance and improve bioactive and sensory properties of food. In the present study nutritively valuable beverages were produced by enrichment of goat's milk with medicinal plant extracts derived from the Lamiaceae family and stabilized by homogenization with high intensity ultrasound treatment...
December 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/29529321/supplementing-goat-kids-with-coconut-medium-chain-fatty-acids-in-early-life-influences-growth-and-rumen-papillae-development-until-4-months-after-supplementation-but-effects-on-in-vitro-methane-emissions-and-the-rumen-microbiota-are-transient
#15
S Debruyne, A Ruiz-González, E Artiles-Ortega, B Ampe, W Van Den Broeck, E De Keyser, L Vandaele, K Goossens, V Fievez
The aim of this study was to investigate the methane (CH4) reducing potential of a combination of pre- and/or postnatal treatment with coconut oil medium chain fatty acids (CO MCFA) in goat kids. The hypothesis is that influencing rumen function during early life has more chances for success than in the adult life, related to the resilience of the mature rumen microbiota. Forty-eight pregnant does were split into 2 experimental groups: treated does (D+) received 40 g/d of CO MCFA in a test compound feed, while control does (D-) received a control compound feed, during the last 3 wk of gestation...
February 24, 2018: Journal of Animal Science
https://www.readbyqxmd.com/read/29528030/effects-of-dietary-concentrate-composition-and-linseed-oil-supplementation-on-the-milk-fatty-acid-profile-of-goats
#16
P Gómez-Cortés, A Cívico, M A de la Fuente, N Núñez Sánchez, F Peña Blanco, A L Martínez Marín
Milk fat composition can be modulated by the inclusion of lipid supplements in ruminant diets. An interaction between the lipid supplement and the forage to concentrate ratio or the type of forage in the rations may affect milk fat composition. However, little is known about the effects of the starch-to-non-forage NDF ratio in the concentrate and lipid supplementation of goat diets. The aim of this work was to determine the role of dietary carbohydrates in goats rations supplemented with linseed oil on animal performance and milk fatty acid (FA) profile...
March 12, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29525316/trans-10-cis-12-conjugated-linoleic-acid-alters-lipid-metabolism-of-goat-mammary-epithelial-cells-by-regulation-of-de-novo-synthesis-and-the-ampk-signaling-pathway
#17
T Y Zhang, J T Huang, H B Tian, Y Ma, Z Chen, J J Wang, H P Shi, J Luo
The trans-10,cis-12 isomer of conjugated linoleic acid (t10c12-CLA) is a biohydrogenation intermediate in the rumen and has been shown to cause milk fat depression in dairy goats. However, few studies have focused on the in vitro molecular mechanisms involved in the response of the goat mammary gland to t10c12-CLA. In the present study, RNA sequencing technology was used to investigate the effects of t10c12-CLA on goat mammary epithelial cells. From the data, 25,153 annotated transcripts were obtained, and differentially expressed genes were selected based on a false discovery rate <0...
March 7, 2018: Journal of Dairy Science
https://www.readbyqxmd.com/read/29523944/bioaccessible-peptides-released-by-in-vitro-gastrointestinal-digestion-of-fermented-goat-milks
#18
Miriam Moreno-Montoro, Paula Jauregi, Miguel Navarro-Alarcón, Manuel Olalla-Herrera, Rafael Giménez-Martínez, Lourdes Amigo, Beatriz Miralles
In this study, ultrafiltered goat milks fermented with the classical starter bacteria Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus salivarus subsp. thermophilus or with the classical starter plus the Lactobacillus plantarum C4 probiotic strain were analyzed using ultra-high performance liquid chromatography-quadrupole-time-of-flight tandem mass spectrometry (UPLC-Q-TOF-MS/MS) and/or high performance liquid chromatography-ion trap (HPLC-IT-MS/MS). Partial overlapping of the identified sequences with regard to fermentation culture was observed...
March 10, 2018: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/29514650/prevalence-of-bovine-tuberculosis-in-cattle-goats-and-camels-of-traditional-livestock-raising-communities-in-eritrea
#19
Michael K Ghebremariam, A L Michel, J C M Vernooij, M Nielen, V P M G Rutten
BACKGROUND: The aim of the current study was to assess the prevalence of bovine tuberculosis (BTB) in cattle, goats, and camels, and its zoonotic potential within the traditional livestock raising communities in four regions of Eritrea. The Single Intradermal Comparative Tuberculin Test (SICTT) as indicator of M. bovis infection was conducted on 1077 cattle, 876 goats, and 195 camels. To elucidate possible risk factors for BTB transmission between animals and its potential zoonotic implication, questionnaire based face-to-face interviews were conducted in households of which 232 raised cattle, 128 goats, and 29 camels...
March 7, 2018: BMC Veterinary Research
https://www.readbyqxmd.com/read/29497092/author-correction-a-genome-scan-for-milk-production-traits-in-dairy-goats-reveals-two-new-mutations-in-dgat1-reducing-milk-fat-content
#20
Pauline Martin, Isabelle Palhière, Cyrielle Maroteau, Philippe Bardou, Kamila Canale-Tabet, Julien Sarry, Florent Woloszyn, Justine Bertrand-Michel, Ines Racke, Hüseyin Besir, Rachel Rupp, Gwenola Tosser-Klopp
A correction to this article has been published and is linked from the HTML and PDF versions of this paper. The error has not been fixed in the paper.
March 1, 2018: Scientific Reports
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