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Animal: An International Journal of Animal Bioscience

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https://www.readbyqxmd.com/read/29343316/black-soldier-fly-larva-fat-inclusion-in-finisher-broiler-chicken-diet-as-an-alternative-fat-source
#1
A Schiavone, S Dabbou, M De Marco, M Cullere, I Biasato, E Biasibetti, M T Capucchio, S Bergagna, D Dezzutto, M Meneguz, F Gai, A Dalle Zotte, L Gasco
The objective of the present study was to evaluate the effects of partial or total replacement of finisher diet soybean oil with black soldier fly (Hermethia illucens L.; HI) larva fat on the growth performance, carcass traits, blood parameters, intestinal morphology and histological features of broiler chickens. At 21 days of age, a total of 120 male broiler chickens (Ross 308) were randomly allocated to three experimental groups (five replicates and eight birds/pen). To a basal control diet (C; 68.7 g/kg as fed of soybean oil), either 50% or 100% of the soybean oil was replaced with HI larva fat (HI50 and HI100 group, respectively)...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29343313/eucalyptus-leaves-powder-antibiotic-and-probiotic-addition-to-broiler-diets-effect-on-growth-performance-immune-response-blood-components-and-carcass-traits
#2
H Mashayekhi, M Mazhari, O Esmaeilipour
The study was conducted to investigate the effects of different levels of eucalyptus powder (EP), virginiamycin and probiotic on performance, immunity, blood components and carcass traits of broiler chickens. A total of 250, 1-day-old male broiler chickens (Ross 308) were randomly allocated to five treatments with five replicates and 10 chicks each, as a completely randomized design. The dietary treatments consisted of: basal diet (BD), BD+0.25% EP, BD+0.5% EP, BD+0.01% of diet probiotic (Protexin), BD+0.02% of diet antibiotic (virginiamycin)...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29343310/effect-of-dietary-fish-oil-on-selected-inflammatory-markers-in-pigs
#3
T Komprda, P Ondráčková, M Vícenová, V Rozíková, N Procházková, L Levá, M Faldyna
The present study tested a hypothesis that dietary fish oil (eicosapentaenoic acid+docosahexaenoic acid) in a commonly achievable dose ameliorates a systemic inflammation in pigs. Two groups of pigs of 16 animals each were fed a diet with either 2.5% of fish oil (F) or a control diet with 2.5% of palm oil (P). After 70 days of fattening, eight F and eight P pigs were challenged (F+; P+) i.v. by lipopolysaccharide. After 3 h, all pigs were sacrificed and blood, liver and visceral adipose tissue (VAT) samples were taken...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29343308/invited-review-genomic-selection-for-small-ruminants-in-developed-countries-how-applicable-for-the-rest-of-the-world
#4
R Mrode, G M Tarekegn, J M Mwacharo, A Djikeng
Improved management and use of estimated breeding values in breeding programmes, have resulted in rapid genetic progress for small ruminants (SR) in Europe and other developed countries. The development of single nucleotide polymorphisms chips opened opportunities for genomic selection (GS) in SR in these countries. Initially focused on production traits (growth and milk), GS has been extended to functional traits (reproductive performance, disease resistance and meat quality). The GS systems have been characterized by smaller reference populations compared with those of dairy cattle and consisting mostly of cross- or multi-breed populations...
January 18, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29332611/effect-of-rubber-mats-and-perforation-in-the-lying-area-on-claw-and-limb-lesions-of-fattening-pigs
#5
A Falke, K Friedli, L Gygax, B Wechsler, X Sidler, R Weber
Claw and leg lesions are frequently observed in finishing pigs and are likely to compromise their welfare. Providing softer than the usual concrete flooring may reduce both the frequency and severity of these lesions. Therefore, this study evaluated the influence of rubber mats and floor perforation in the lying area on claw and leg health of finishing pigs. A total of 240 Swiss Large White finishing pigs from on average 24.9 kg until 102.3 kg were used in four batches, with six groups of 10 animals per batch...
January 15, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29332610/improvements-in-the-conception-rate-milk-composition-and-embryo-quality-of-rabbit-does-after-dietary-enrichment-with-n-3-polyunsaturated-fatty-acids
#6
M Rodríguez, R M García-García, M Arias-Álvarez, P Millán, N Febrel, N Formoso-Rafferty, J López-Tello, P L Lorenzo, P G Rebollar
This work attempts to confirm the effect of an enriched diet with n-3 polyunsaturated fatty acids (PUFA) trying to mitigate the reproductive performances issues such as low conception rate of primiparous rabbits. A total of 127 does were fed ad libitum throughout their two first cycles with two diets with different fat sources: mixed fat in the control and salmon oil in the enriched one, with 3.19 g/100 g (n=63 does) and 28.77 g/100 g (n=64 does) of n-3 of the total fatty acid, respectively. Feed intake was similar between groups (P>0...
January 15, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29331165/investigating-the-population-structure-and-genetic-differentiation-of-livestock-guard-dog-breeds
#7
D Bigi, S P Marelli, L Liotta, S Frattini, A Talenti, G Pagnacco, M Polli, P Crepaldi
Livestock guarding dogs are a valuable adjunct to the pastoral community. Having been traditionally selected for their working ability, they fulfil their function with minimal interaction or command from their human owners. In this study, the population structure and the genetic differentiation of three Italian livestock guardian breeds (Sila's Dog, Maremma and Abruzzese Sheepdog and Mannara's Dog) and three functionally and physically similar breeds (Cane Corso, Central Asian Shepherd Dog and Caucasian Shepherd Dog), totalling 179 dogs unrelated at the second generation, were investigated with 18 autosomal microsatellite markers...
January 14, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29310743/how-do-farm-models-compare-when-estimating-greenhouse-gas-emissions-from-dairy-cattle-production
#8
N J Hutchings, Ş Özkan Gülzari, M de Haan, D Sandars
The European Union Effort Sharing Regulation (ESR) will require a 30% reduction in greenhouse gas (GHG) emissions by 2030 compared with 2005 from the sectors not included in the European Emissions Trading Scheme, including agriculture. This will require the estimation of current and future emissions from agriculture, including dairy cattle production systems. Using a farm-scale model as part of a Tier 3 method for farm to national scales provides a more holistic and informative approach than IPCC (2006) Tier 2 but requires independent quality control...
January 9, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29310736/anti-inflammatory-effects-of-conjugated-linoleic-acid-isomers-and-essential-fatty-acids-in-bovine-mammary-epithelial-cells
#9
D Dipasquale, L Basiricò, P Morera, R Primi, A Tröscher, U Bernabucci
Fatty acids are important modulators of inflammatory responses, in particular, n-3 and n-6 essential fatty acids and CLA have received particular attention for their ability to modulate inflammation. The objectives of this study were to compare the effects of CLA and essential fatty acids on the expression of pro and anti- inflammatory cytokines and their protective efficacy against inflammatory status in mammary gland by an in vitro model based on bovine mammary epithelial cells (BME-UV1). Bovine mammary epithelial cells were treated with complete medium containing either 50 µM of cis-9, trans-11 CLA (c9,t11 CLA) or trans-10, cis-12 CLA (t10,c12 CLA) or (α)-linolenic acid (aLnA) or (γ)-linolenic acid (gLnA) or linoleic acid (LA)...
January 9, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29310729/efficiency-and-demographics-of-a-high-yield-dairy-ewe-farm-with-two-managing-systems-involving-five-or-10-lambings-per-year
#10
J-L Pesantez-Pacheco, L Torres-Rovira, F Hernandez, M V Sanz-Fernandez, N P Villalobos, A Heras-Molina, C Garcia-Contreras, M Vazquez-Gomez, P Martinez-Ros, J-V Gonzalez-Martin, A Gonzalez-Bulnes, S Astiz
This study assessed milk productivity, demographic characteristics and workload distribution on a single high-yield dairy ewe farm in Spain (Avila, Spain; continental climate, latitude of 40.90 N, altitude of 900 m) over a 7-year period considering a transition from a herd management system involving five lambings per year (5LY) to a system involving 10 lambings per year (10LY). The 5LY system was practiced on the farm from 2010 to 2012 and the 10LY system from 2014 to 2015, with 2009 and 2013 being considered transition years...
January 9, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29307328/milk-protein-composition-in-purebred-holsteins-and-in-first-second-generation-crossbred-cows-from-swedish-red-montbeliarde-and-brown-swiss-bulls
#11
A Maurmayr, S Pegolo, F Malchiodi, G Bittante, A Cecchinato
The aim of this study was to analyze milk protein composition in purebred and crossbred dairy cattle and estimate the effects of individual sources of variation on the investigated traits. Milk samples were collected from 505 cows from three commercial farms located in Northern Italy, some of which had originated from crossbreeding programs, although most were purebred Holsteins (HO). The basic crossbreeding scheme was a three-breed rotational system using Swedish Red (SR) semen on HO cows (SR×HO), Montbeliarde (MO) semen on SR×HO cows (MO×(SR×HO)) and HO semen again on MO×(SR×HO) cows...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29307323/quality-of-eggs-from-lohmann-brown-classic-laying-hens-fed-black-soldier-fly-meal-as-substitute-for-soya-bean
#12
G Secci, F Bovera, S Nizza, N Baronti, L Gasco, G Conte, A Serra, A Bonelli, G Parisi
Soya bean is the main protein source in poultry feed but rising prices make an alternative protein source necessary. Insects, such as the black soldier fly (Hermetia illucens), may be an attractive solution for hens, although little information is available on their effect on egg quality. The present study aims to fill this gap by testing the effect of 100% replacement of soya bean with H. illucens larva meal in the diet of Lohmann Brown Classic laying hens for 21 weeks. At the end of the trial, the eggs were characterized for parameters such as weight, colour, proximate composition of albumen and yolk, and content of carotenoids, tocopherols and cholesterol...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29307312/the-different-molecular-structure-and-glycerol-to-fatty-acid-ratio-of-palm-oils-affect-their-nutritive-value-in-broiler-chicken-diets
#13
A P Roll, E Vilarrasa, A Tres, A C Barroeta
The aim of this study is to assess how the fat molecular structure and its glycerol-to-fatty acid ratio (G : FA) affect the fatty acid (FA) apparent absorption of palm oils in broiler chickens. The experimental diets were the result of a basal diet supplemented with 6% of different palm oils. Native palm oil (N), rich in triacylglycerols, was the positive control (T1), and acid palm oil (A), rich in free FA, was the negative control (T2). In order to improve the nutritive value of A, two different nutritional strategies were performed...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306351/dissection-of-ancestral-genetic-contributions-to-creole-goat-populations
#14
N Sevane, O Cortés, L T Gama, A Martínez, P Zaragoza, M Amills, D O Bedotti, C Bruno de Sousa, J Cañon, S Dunner, C Ginja, M R Lanari, V Landi, P Sponenberg, J V Delgado
Goats have played a key role as source of nourishment for humans in their expansion all over the world in long land and sea trips. This has guaranteed a place for this species in the important and rapid episode of livestock expansion triggered by Columbus' arrival in the Americas in the late 1400s. The aims of this study are to provide a comprehensive perspective on genetic diversity in American goat populations and to assess their origins and evolutionary trajectories. This was achieved by combining data from autosomal neutral genetic markers obtained in more than two thousand samples that encompass a wide range of Iberian, African and Creole goat breeds...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306350/effect-of-condensed-tannins-in-rations-of-lactating-dairy-cows-on-production-variables-and-nitrogen-use-efficiency
#15
K Gerlach, M Pries, E Tholen, A J Schmithausen, W Büscher, K-H Südekum
The objective of this study was to evaluate the effect of supplemented condensed tannins (CT) from the bark of the Black Wattle tree (Acacia mearnsii) on production variables and N use efficiency in high yielding dairy cows. A feeding trial with 96 lactating German Holstein cows was conducted for a total of 169 days, divided into four periods. The animals were allotted to two groups (control (CON) and experimental (EXP) group) according to milk yield in previous lactation, days in milk (98), number of lactations and BW...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306348/effect-of-different-dietary-energy-and-protein-sources-on-antioxidant-status-fresh-yolk-fatty-acid-profile-and-microstructure-of-salted-yolks-in-laying-ducks
#16
D Ruan, Y J Hu, A M Fouad, C X Lin, Z P Xu, W Chen, Q L Fan, W G Xia, S Wang, Y Wang, L Yang, C T Zheng
The study investigated whether different dietary energy and protein sources affect laying performance, antioxidant status, fresh yolk fatty acid profile and quality of salted yolks in laying ducks. In all, 360 19-week-old Longyan ducks were randomly assigned to four diets in a factorial arrangement (2×2). The four diets consisted of two energy sources, corn (CO) or sorghum (SO) and two protein sources, soybean meal (SM) and rapeseed meal with corn distillers dried grains with solubles (RMD), and each treatment contained six replicates of 15 birds each...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306347/effect-of-white-striping-on-turkey-breast-meat-quality
#17
F Soglia, G Baldi, L Laghi, S Mudalal, C Cavani, M Petracci
In the past decades, the intense selection practices carried out in order to develop fast growing and high breast-yield turkey hybrids profoundly modified the muscle physiology leading to the development of growth-related alterations and muscular abnormalities. White striations of variable thickness have been particularly observed on the ventral surface of Pectoralis major muscle belonging from heavy male turkeys since several years. However, although the effects of white striping (WS) have been extensively studied on broilers, this condition was not considered as a main quality issue by both turkey producers and meat industry...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306346/inter-observer-reliability-of-animal-based-welfare-indicators-included-in-the-animal-welfare-indicators-welfare-assessment-protocol-for-dairy-goats
#18
A Vieira, M Battini, E Can, S Mattiello, G Stilwell
This study was conducted within the context of the Animal Welfare Indicators (AWIN) project and the underlying scientific motivation for the development of the study was the scarcity of data regarding inter-observer reliability (IOR) of welfare indicators, particularly given the importance of reliability as a further step for developing on-farm welfare assessment protocols. The objective of this study is therefore to evaluate IOR of animal-based indicators (at group and individual-level) of the AWIN welfare assessment protocol (prototype) for dairy goats...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306345/evaluation-of-the-effects-of-different-diets-on-microbiome-diversity-and-fatty-acid-composition-of-rumen-liquor-in-dairy-goat
#19
P Cremonesi, G Conte, M Severgnini, F Turri, A Monni, E Capra, L Rapetti, S Colombini, S Chessa, G Battelli, S P Alves, M Mele, B Castiglioni
Fat supplementation plays an important role in defining milk fatty acids (FA) composition of ruminant products. The use of sources rich in linoleic and α-linolenic acid favors the accumulation of conjugated linoleic acids isomers, increasing the healthy properties of milk. Ruminal microbiota plays a pivotal role in defining milk FA composition, and its profile is affected by diet composition. The aim of this study was to investigate the responses of rumen FA production and microbial structure to hemp or linseed supplementation in diets of dairy goats...
January 8, 2018: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/29306344/preweaning-mortality-in-piglets-in-loose-housed-herds-etiology-and-prevalence
#20
C Kielland, H Wisløff, M Valheim, A K Fauske, O Reksen, T Framstad
Preweaning mortality in piglets is a welfare issue, as well as an ethical and economic concern in commercial pig farming. Studying the causes of preweaning mortality and their prevalence is necessary to reduce losses. Preweaning piglet mortality was investigated in a field study including 347 sows from 14 loose-housed Norwegian piglet-producing herds. A total of 5254 piglets were born in these herds during the study period, and 1200 piglets were necropsied. The cause of death was based on pathoanatomical diagnosis (PAD)...
January 8, 2018: Animal: An International Journal of Animal Bioscience
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