Search results for "Sheep milk"

L’impiego alimentare di orzo germinato nella produzione di latte ovino biologico

2011

Food use of barley sprouts in organic sheep milk production. Hydroponic forage, used when fresh forage is scarce, represents a good alternative feed for milking ruminants, also in organic farming systems, where it can reduce the forage/concentrate ratio. This study evaluated the effect of barley sprouts (BS) in the diet on nutrients utilization and milk production from organic ewes. Eighteen ewes were divided into 3 groups and fed with 3 diets. Animals was fed with hay ad libitum and supplemented by: 0.6 kg/d of concentrate and 4 kg/d of BS (B100); 0.9 kg/d of concentrate and 2 kg/d of BS (B50); 1.2 kg/d of concentrate (C). Supplied and residual feeds and milk yield were recorded and sample…

ORGANIC SHEEP MILK PRODUCTION AND QUALITY BY USE OF LEGUME GRAINS AS DIETARY SUPPLEMENT

2013

The aim of this study was to evaluate the sheep milk yield and quality as affecting by concentrate dietary supplements prepared on farm by mixing locally produced barley and legume grains, used as alternative to a commercial feed. A total of twelve milking ewes, averaging 92±9 days in milking and 56±6 kg of live weight, were housed in individual pens and divided homogeneously into four groups. Each group was fed ad libitum with a grass-legume hay and received, according to a 4x4 Latin square design with periods comprised of 21 days, one of the following isonitrogenous concentrates: 500 g chickpea and 300 g barley (CP); 450 g faba bean and 350 g barley (FB); 550 g pea and 250 g barley (PE); …

Genetic selection for reduced Somatic Cell Counts in sheep milk: A review

2015

Mastitis is an inflammation of the udder, mainly caused by bacteria, and leads to economic loss, due to discarded milk, reduced milk production, reduced milk quality and increased health costs in both dairy sheep and cattle. Selecting for increased genetic resistance to mastitis can be done directly or indirectly, with the indirect selection corresponding to a prediction of the bacteriological status of the udder based on traits related to the infection. The most frequently used indirect method is currently milk somatic cell count (SCC) or somatic cell score (SCS). This review reports the state of the art relating to the genetic basis of mastitis resistance in sheep and explores the opportu…

STUDY OF FATTY ACIDS PROFILE IN OVINE AND CAPRINE SICILIAN DAIRY BREED AND ASSOCIATION WITH POSSIBLE CANDIDATE GENES

In Sicilia, le razze bovine, ovine e caprine e le produzioni lattiero-casearie rappresentano una risorsa importante per l’economia del settore zootecnico. L’importanza economica del latte ovino e caprino è soprattutto legata per il primo alla sua trasformazione in prodotti lattiero-caseari, per il secondo al possibile utilisso per il consumo fresco. Per entrambe queste specie, il contenuto di grasso e proteine è importante tanto quanto la produzione di latte. L’individuazione dei geni responsabili delle caratteristiche quanti-qualitative del latte dei piccoli ruminanti permetterebbe quindi di aumentare l’efficienza del miglioramento genetico e di considerare nuovi obiettivi di selezione com…

Identification and evaluation of antimicrobial resistance of enterococci isolated from raw ewes’ and cows’ milk collected in western Sicily: a prelim…

2019

The present work was carried out to investigate the Antimicrobial Resistance (AMR) of enterococci isolated from raw ewes’ and cows’ milk. The samples were collected from eighteen semi-extensive dairy sheep and cow farms throughout western Sicily. Plate counts, carried out on Rapid Enterococcus Agar commonly used to detect food enterococci, revealed a maximal enterococcal concentration of approximately 4.58 Log Colony Forming Unit (CFU)/mL. Colonies were isolated and differentiated based on genetic analysis by Randomly Amplified Polymorphic DNA (RAPD)-PCR. Thirty-eight different strains were identified. Analysis by a species-specific multiplex PCR assay grouped the strains into three Enteroc…

The influence of somatic cell count on sheep milk composition and cheese-making properties

2005

Somatic cell count (SCC) is an important tool for monitoring intramammary infections in dairy cows. However, systematic generalization of this decision rule is not easy in small ruminants. Determination of SCC in sheep milk is important for the processors of milk (indicator of quality), for breeders (mastitis indicator) and could be useful for selection as well. SCC value can be affected by some non-infective factors such as breed, stage of lactation, parity, type of lambing, type of milking, etc. (Bergonier et al., 1994), as well the health status of the udder (Fruganti et al., 1985; Ranucci et al., 1988). In addition, EC Directive 92/46, which regulates the production and commercialisatio…