Search results for " cows"

The maturity stage of the grass affects milk fatty acids of cows grazing a mountain grassland

2010

International audience; We aimed to quantify the effect of the growth stage of a mountain grassland pasture on the fatty acid (FA) composition of grass and milk. In June (growth) and October (regrowth), a mountain pasture was continuously grazed by six dairy cows in a strip grazing system. During June, the grass C18:3n-3 content decreased while C16:0, c9-C18:1 and C18:2n-6 content increased. During October, the grass FA composition was similar to that observed in the first part of June. During June, milk saturated FA (SFA) content increased while the sum of the trans FA and polyunsaturated FA (PUFA) content decreased, mainly due to the decrease in C18:3n-3 and c9t11-CLA percentages. At the …

Microbial analysis of raw cows' milk used for cheese-making: influence of storage treatments on microbial composition and other technological traits

2010

Raw milk used to produce Grana cheese was subjected to several treatment regimes, including varying temperatures and storage times. Milk from morning and evening milking were transferred to a dairy factory sepa- rately (double delivery) or together (single delivery), after storage at the farm for 12 h; in the former case, milk was stored at 12 or 8°C, whereas, in the latter, it was kept at ambient temperature or 18°C. Values of pH of the vat milk were lower for milk samples kept at room temperature, while other physico-chemical parameters and rheological characteristics tested did not show significant differ- ences linked to the different storage temperatures of milk used for ‘‘Grana Trenti…

Effects of grazing on welfare and production traits of organic dairy cows

2013

In organic livestock systems, grazing is the preferred feeding source, especially for animal welfare and health implications, but it is not an obliged practice. In order to contribute on this topic, in an organic dairy farm, grazing was compared with permanent free-stall housing using two homogeneous groups of eight Bruna cows allocated to the following regimes: (G) grazing on barley grass for 5 h/d, and then kept in a free-stall structure and fed with unifeed, composed of hay and concentrate; (S) kept in a free-stall building for 24 h/d and fed with a diet based on the same unifeed. Comparison was based on milk production, behaviour, immune responses, metabolic status and oxidative stress …

Both grass development stage and grazing management play a major role on milk terpene content

2004

International audience

Wheat bran as dietary tool to improve dairy production, oxidative status of lactating cows and food sustainability indexes.

2017

Wheat bran (WB), an inexpensive by-product widely available in southern Italy, is largely used as component of feed for ruminants, contributing to decrease the use of food suitable for human consumption, thus to improve the sustainability of livestock production. However, the potential benefits of WB, due to its content in polyphenolic compounds, mainly consisted of ferulic acid, in improving rumen conditions and the antioxidant balance of animals, and also providing animal products with functional properties, are not yet well known. Accordingly, this experiment was carried out for 100 days with 36 lactating Italian Simmental cows divided into 3 groups receiving one of 3 concentrates includ…

Both grass development and grazing management influence milk terpene content.

2005

Milk fatty acids of cows grazing a mountain diversified grassland is highly affected by the maturity stage of the grass.

2009

Effect of β-lactoglobulin (LGB) and k-casein (CSN3) alleles on some characteristics of milk produced by Cinisara cows

2015

It is well known that β-lactoglobulin (LGB) and k-casein (CSN3) alleles affect milk cheese making properties. The purpose of this study was to analyse the A and B allele distribution at the LGB and CSN3 loci in Cinisara breed and their influence on milk and cheese making production traits. The Cinisara is a Sicilian breed which, according to DAD-IS database (FAO), consists of about 5,000 individuals and is reared mainly for milk production which is usually transformed into Caciocavallo Palermitano, a typical stretched-curd cheese. We typed 314 lactating cows at the LGB and CSN3 loci by means of RFLP-PCR analyses. The frequencies of LGB A and B alleles were 0.22 and 0.78, respectively; the f…