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https://www.readbyqxmd.com/read/28822547/bacterial-diversity-in-goat-milk-from-the-guanzhong-area-of-china
#1
Fuxin Zhang, Zhaoxia Wang, Feiyan Lei, Bini Wang, Shuaiming Jiang, Qiannan Peng, Jiachao Zhang, Yuyu Shao
In this study, the V3 and V4 regions of the 16S rRNA gene from metagenomic DNA were sequenced to identify differences in microbial diversity in raw milk of Saanen and Guanzhong goats from the Guanzhong area of China. The results showed that Proteobacteria was the predominant phylum, accounting for 71.31% of all phyla identified in milk from the 2 breeds, and Enterobacter was the predominant genus (24.69%) within the microbial community. Microbial alpha diversity from Saanen goat milk was significantly higher than that of Guanzhong goat milk based on bioinformatic analysis of indices of Chao1, Shannon, Simpson, observed species, and the abundance-based coverage estimator...
August 16, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28817647/caprine-brucellosis-a-historically-neglected-disease-with-significant-impact-on-public-health
#2
REVIEW
Carlos A Rossetti, Angela M Arenas-Gamboa, Estefanía Maurizio
Caprine brucellosis is a chronic infectious disease caused by the gram-negative cocci-bacillus Brucella melitensis. Middle- to late-term abortion, stillbirths, and the delivery of weak offspring are the characteristic clinical signs of the disease that is associated with an extensive negative impact in a flock's productivity. B. melitensis is also the most virulent Brucella species for humans, responsible for a severely debilitating and disabling illness that results in high morbidity with intermittent fever, chills, sweats, weakness, myalgia, abortion, osteoarticular complications, endocarditis, depression, anorexia, and low mortality...
August 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28815405/supplemented-organic-and-inorganic-selenium-affects-milk-performance-and-selenium-concentration-in-milk-and-tissues-in-the-guanzhong-dairy-goat
#3
L Zhang, X R Liu, J Z Liu, X P An, Z Q Zhou, B Y Cao, Y X Song
Trace amounts of selenium (Se) are essential for several organisms, and deficiencies therein have adverse effects on growth, development, and reproduction; this is particularly significant in animals raised for milk and livestock production. To study the effect of Se on Guanzhong dairy goats, their diets were supplemented with different sources (inorganic or organic) and Se concentrations (0.2 or 0.4 mg Se/kg). A non-Se-fortified basal diet served as a negative control, and a sixth treatment group received both inorganic and organic Se sources (0...
August 16, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28813529/natural-and-artificial-feeding-management-before-weaning-promote-different-rumen-microbial-colonization-but-not-differences-in-gene-expression-levels-at-the-rumen-epithelium-of-newborn-goats
#4
Leticia Abecia, Elisabeth Jiménez, Gonzalo Martínez-Fernandez, A Ignacio Martín-García, Eva Ramos-Morales, Eric Pinloche, Stuart E Denman, C Jamie Newbold, David R Yáñez-Ruiz
The aim of this work was to evaluate the effect of feeding management during the first month of life (natural with the mother, NAT, or artificial with milk replacer, ART) on the rumen microbial colonization and the host innate immune response. Thirty pregnant goats carrying two fetuses were used. At birth one kid was taken immediately away from the doe and fed milk replacer (ART) while the other remained with the mother (NAT). Kids from groups received colostrum during first 2 days of life. Groups of four kids (from ART and NAT experimental groups) were slaughtered at 1, 3, 7, 14, 21 and 28 days of life...
2017: PloS One
https://www.readbyqxmd.com/read/28807296/myiasis-of-domestic-and-wild-ruminants-caused-by-hypodermatinae-in-the-mediterranean-and-indian-subcontinent
#5
REVIEW
Anish Yadav, Rosario Panadero, Rajesh Katoch, Rajesh Godara, Eva Cabanelas
Myiasis caused by Hypodermatinae flies is an economically important disease affecting domesticated and wild ruminants in countries of the Mediterranean and Indian subcontinent. The adult flies have a short life span of 1 week, and they spread disease by laying their eggs on the coat of animals. Hypoderma spp. primarily lay their eggs on cattle, buffalo, roe deer, red deer and reindeer, while Przhevalskiana spp. lay eggs on the coat of goats. The larvae live as tissue parasites, inducing myiasis in the host, and have a major impact on the productivity and welfare of infested animals...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28803011/new-insights-on-the-metabolism-of-ricinoleic-acid-in-ruminants
#6
Susana P Alves, Cintia M Araujo, Rita C Queiroga, Marta S Madruga, Michelle O M Parente, Ariosvaldo N Medeiros, Rui J B Bessa
Dairy goats were fed a total mixed ration with or without the inclusion of castor oil (40 g/kg of DM) to study the metabolism of ricinoleic acid (12-OH,cis-9-18:1). Ten goats, at 39.7 ± 4.0 d in milk, were individually penned and allocated at random to the 2 experimental diets. Goats were manually milked twice a day. Milk fatty acids (FA) were analyzed as methyl esters and hydroxyl groups were derivatized in trimethylsilyl ethers. Apart from ricinoleic acid, 6 FA were only detected in the milk of the castor oil group...
August 9, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28802131/food-contamination-by-pcbs-and-waste-disposal-crisis-evidence-from-goat-milk-in-campania-italy
#7
M C Ferrante, G Fusco, A Monnolo, F Saggiomo, J Guccione, R Mercogliano, M T Clausi
AIM: The study aims at investigating whether, and if so, to what extent the strong presence of urban and industrial waste in a territory may cause PCB contamination in goat milk produced therein. METHODS: We compared PCB concentrations in goat milk from three different locations in the Campania region (Italy). One of the three locations, together with its surrounding area, has long suffered from illegal waste disposal and burning mainly by the so-called Ecomafia...
July 28, 2017: Chemosphere
https://www.readbyqxmd.com/read/28792887/the-genetic-basis-for-the-selection-of-dairy-goats-with-enhanced-resistance-to-gastrointestinal-nematodes
#8
Felix Heckendorn, Anna Bieber, Steffen Werne, Anastasios Saratsis, Veronika Maurer, Chris Stricker
Gastrointestinal nematodes (GIN) severely affect small ruminant production worldwide. Increasing problems of anthelmintic resistance have given strong impetus to the search for alternative strategies to control GIN. Selection of animals with an enhanced resistance to GIN has been shown to be successful in sheep. In goats, the corresponding information is comparatively poor. Therefore, the present study was designed to provide reliable data on heritabilities of and genetic correlations between phenotypic traits linked to GIN and milk yield in two major dairy goat breeds (Alpine and Saanen)...
2017: Parasite: Journal de la Société Française de Parasitologie
https://www.readbyqxmd.com/read/28783032/seroprevalence-of-toxoplasma-gondii-infection-in-goats-from-the-south-west-region-of-poland-and-the-detection-of-t-gondii-dna-in-goat-milk
#9
Jacek Sroka, Pawel Kusyk, Ewa Bilska-Zajac, Jacek Karamon, Jacek Dutkiewicz, Angelina Wojcik-Fatla, Violetta Zajac, Krzysztof Stojecki, Miroslaw Rozycki, Tomasz Cencek
Toxoplasma gondii (Nicolle et Manceaux, 1908) is an obligatory intracellular protozoan parasite prevalent in animals and humans worldwide having medical and veterinary importance on account of causing abortion or congenital disease in intermediate hosts, including man. Since T. gondii has already been identified in the milk of goats, Capra aegagrus hircus (Linnaeus), the possibility of acquiring infection by ingesting unpasteurised goat milk should be taken into consideration. Thus, the aim of the present study was to determine the presence of T...
July 11, 2017: Folia Parasitologica
https://www.readbyqxmd.com/read/28763945/oxidative-stability-of-iron-fortified-goat-and-cow-milk-and-their-peptide-isolates
#10
A Smialowska, L Matia-Merino, A J Carr
The oxidation potential of iron fortified goat and cow milks and casein phosphopeptides obtained from each species of milk was determined using malondialdehyde as an oxidation product marker. There was a reduction in oxidation when iron was 'bound' to milk or peptides compared to free ferrous sulphate in solution. However, goat milk produced significantly lower amounts of malondialdehyde of 0.46±0.04μgMDA/ml after 3days at 30°C compared to the blank of 1.25±0.16μgMDA/ml. The goat peptides produced non-significantly different levels of malondialdehyde compared to the blank containing no ferrous sulphate...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28759641/novel-sensitive-monoclonal-antibody-based-competitive-enzyme-linked-immunosorbent-assay-for-the-detection-of-raw-and-processed-bovine-beta-casein
#11
Daniela S Castillo, Alejandro Cassola
Cow milk protein allergy (CMPA) is the most common childhood food allergy, which can sometimes persist or can newly develop in adulthood with severe symptoms. CMPA's treatment is complete dietary avoidance of milk proteins. To achieve this task, patients have to be aware of milk proteins found as "hidden allergens" in food commodities. In regard to milk proteins, it has been reported that allergenicity of caseins remains unaffected upon heat treatment. For these reasons, we aimed to obtain monoclonal antibodies (mAbs) against native and denatured β-casein, one of the most abundant and antigenic caseins, in order to develop an indirect competitive ELISA (icELISA) to detect and quantify traces of this milk allergen in raw and processed foodstuffs...
2017: PloS One
https://www.readbyqxmd.com/read/28755949/short-communication-passive-shedding-of-mycobacterium-avium-ssp-paratuberculosis-in-commercial-dairy-goats-in-brazil
#12
D G G Schwarz, M C Lima, M Barros, F L Valente, T M Scatamburlo, N Rosado, C T S A M Oliveira, L L Oliveira, M A S Moreira
Goat farming is a low-cost alternative to dairy production in developing countries. In Brazil, goat production has increased in recent years due in part to the implementation of programs encouraging this activity. Mycobacterium avium ssp. paratuberculosis (MAP) is the causative agent of paratuberculosis, a disease that causes chronic granulomatous enteritis in ruminants, but MAP transmission dynamics are still poorly understood in goats. In a previously published study of our research group, 10 dairy goat farms (467 animals) from Minas Gerais state were analyzed for MAP detection; 2 fecal cultures and 11 milk samples tested positive for MAP by conventional PCR and were confirmed by sequencing...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28747241/developing-a-predictive-model-for-the-energy-content-of-goat-milk-as-the-basis-for-a-functional-unit-formulation-to-be-used-in-the-life-cycle-assessment-of-dairy-goat-production-systems
#13
P P Danieli, B Ronchi
Recent reports on livestock environmental impact based on life cycle assessment (LCA) did not fully consider the case of the dairy goat. Assignment of an environmental impact (e.g. global warming potential) to a specific product needs to be related to the appropriate 'unitary amount' or functional unit (FU). For milk, the energy content may provide a common basis for a definition of the FU. To date, no ad hoc formulations for the FU of goat milk have been proposed. For these reasons, this study aimed to develop and test one or more predictive models (DPMs) for the gross energy (GE) content of goat milk, based on published compositional data, such as fat (F), protein, total solids (TS), solid non-fat matter (SNF), lactose (Lac) and ash...
July 27, 2017: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/28740504/2-4-thiazolidinedione-treatment-improves-the-innate-immune-response-in-dairy-goats-with-induced-subclinical-mastitis
#14
Fernanda Rosa, Johan S Osorio, Erminio Trevisi, Francisco Yanqui-Rivera, Charles T Estill, Massimo Bionaz
Mastitis is a major disease in dairy cows resulting in significant economic losses. In vitro works suggest that ruminants peroxisome proliferator-activated receptor gamma (PPARγ) can aid in improving the response to mastitis and can control milk fat synthesis. The objectives of the present experiment were to test if treatment with the putative PPARγ agonist 2,4-thiazolidinedione (TZD) improves (1) the response to subclinical mastitis and (2) milk fat production. Lactating goats received daily injections of 8 mg/kg BW of TZD or saline for 3 weeks...
2017: PPAR Research
https://www.readbyqxmd.com/read/28735580/high-protein-goat-s-milk-diet-identified-through-newborn-screening-clinical-warning-of-a-potentially-dangerous-dietetic-practice
#15
Evelina Maines, Giorgia Gugelmo, Elisa Tadiotto, Angelo Pietrobelli, Natascia Campostrini, Andrea Pasini, Florina Ion-Popa, Monica Vincenzi, Francesca Teofoli, Marta Camilot, Andrea Bordugo
OBJECTIVE: Breast-feeding is an unequalled way of providing optimal food for infants' healthy growth and development and the WHO recommends that infants should be exclusively breast-fed for the first 6 months of life. For mothers who are unable to breast-feed or who decide not to, infant formulas are the safest alternative. Despite recommendations, it is possible that parents make potentially harmful nutritional choices for their children because of cultural beliefs or misinformation on infant nutrition...
July 24, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28728395/effects-of-supplementary-glycerin-on-milk-composition-and-heat-stability-in-dairy-goats
#16
Deela Thoh, Patcharin Pakdeechanuan, Pin Chanjula
Objective: This experiment was to study the effects of various levels of crude glycerin (CG) in dairy goat diet on daily intake, milk yield, milk composition, some physical properties and some quality changes of goat milk after sterilization. Methods: Twelve 75% Saanen dairy goats (BW = 49±3 kg; days in milk = 60±12 d) were randomly assigned in a completely randomized design to evaluate the effects of three experimental diets consisting of 0, 5 and 10% CG (dry matter basis) which were formulated to meet or exceed the nutrient requirements of goats...
May 14, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28728359/influence-of-supplemental-canola-or-soybean-oil-on-milk-yield-fatty-acid-profile-and-postpartum-weight-changes-in-grazing-dairy-goats
#17
Israel Lerma-Reyes, G D Mendoza-Martínez, Rolando Rojo-Rubio, Mario Mejia, Juan Carlos Garcia-Lopez, Hector Aaron Lee-Rangel
Objective: This experiment was designed to evaluate the effect of supplementation with soybean or canola oil on milk production and the composition of long chain fatty acids as well as weight changes in the goats and their kids. Methods: Thirty nine mulitparous crossed Alpine x Nubian goats (initial BW 43.5 ± 1.7 kg) from the day of parturition were assigned to the treatments: grazing control (n=15); grazing plus 20 mL/goat/d of supplemental soybean oil (n=12); and grazing plus 20 mL/goat/d of supplemental canola oil (n=12)...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28727079/detection-of-dietary-dna-protein-and-glyphosate-in-meat-milk-and-eggs
#18
A L Van Eenennaam, A E Young
Products such as meat, milk, and eggs from animals that have consumed genetically engineered (GE) feed are not currently subject to mandatory GE labeling requirements. Some voluntary "non-genetically modified organism" labeling has been associated with such products, indicating that the animals were not fed GE crops, as there are no commercialized GE food animals. This review summarizes the available scientific literature on the detection of dietary DNA and protein in animal products and briefly discusses the implications of mandatory GE labeling for products from animals that have consumed GE feed...
July 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28713793/phenotypic-antimicrobial-resistance-profile-of-isolates-causing-clinical-mastitis-in-dairy-animals
#19
Carlotta Ceniti, Domenico Britti, Adriano Michele Luigi Santoro, Rosanna Musarella, Lucia Ciambrone, Francesco Casalinuovo, Nicola Costanzo
Mastitis is the most frequent and costly disease of lactating animals and is associated with a significant reduction in milk yield, increased cost and culling. Early and specific antibiotic based treatment reduces the severity of the disease. Over the years the extensive use of antimicrobials has led to increase antimicrobial resistance. The present study was designed to investigate the prevalence of microorganisms responsible for mastitis and their antimicrobial resistance pattern. A total of 282 milk samples were collected from different animal species (sheep, cows and goats) with clinical mastitis...
April 13, 2017: Italian Journal of Food Safety
https://www.readbyqxmd.com/read/28711265/feeding-a-concentrate-rich-in-rapeseed-oil-improves-fatty-acid-composition-and-flavor-in-norwegian-goat-milk
#20
R A Inglingstad, S Skeie, G E Vegarud, T G Devold, Y Chilliard, M Eknæs
Impaired quality due to a high content of free fatty acids (FFA) and off-flavors has caused challenges in the development of Norwegian goat milk products. The present study aimed to examine the effect of lipid-supplemented concentrates on milk fat content, fatty acid composition, FFA, lipoprotein lipase activity, sensory properties, and size of milk fat globules of goat milk. Thirty goats assigned to 3 experimental groups were fed different concentrates from 60 d in milk (DIM) until late lactation (230 DIM)...
September 2017: Journal of Dairy Science
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