Supplementation of lamb diets with vitamin E and rosemary extracts on meat quality parameters

Green tea leaves contain a wide range of active bio-compounds that are essential for sustainable quail intensification; however, its feed value is not known for the Jumbo quail. Therefore, this study evaluated the effect of different levels of green tea leaf powder (GTLP) on physiological and meat quality parameters of the Jumbo quail. One-week-old chicks (n = 350; 56.1 ± 2.12 g live-weight) were evenly distributed to 35 replicate pens and reared on five experimental diets formulated as follows: a standard grower diet with zinc-bacitracin (PosCon), a standard grower diet without zinc-bacitracin (NegCon), and NegCon diet treated with 10 (GT10), 25 (GT25) and 50 g/kg (GT50) of GTLP. Weight gain linearly decreased in week 2 but increased in week 4, whereas feed conversion efficiency linearly declined in weeks 2 and 3 as GTLP levels increased. Overall feed intake, carcass yield, and caecum and colon weights showed a linear increase with GTLP levels. Hematological parameters fell within the normal ranges reported for healthy quail. The GT10 group showed larger liver weights than the PosCon and NegCon groups. It was concluded that dietary inclusion of GTLP enhances overall feed intake and carcass performance but not feed efficiency, hematological and meat quality parameters of Jumbo quail.

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Meat quality and carcass characteristics of Norwegian dairy and Holstein-Friesian cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200020135 ◽

2007 ◽

Vol 2007 ◽

pp. 110-110

Author(s):

R.M. Kirkland ◽

D.C. Patterson ◽

B.W. Moss ◽

T.W.J. Keady ◽

R.W.J. Steen

Keyword(s):

Meat Quality ◽

Production Systems ◽

Carcass Characteristics ◽

Quality Parameters ◽

Quality Characteristics ◽

Production Data ◽

Dairy Traits ◽

Holstein Friesian ◽

Friesian Cattle ◽

Norwegian Dairy

Any evaluation of breeds or production systems for beef must consider effects on production, carcass and meat quality characteristics. Holstein-Friesian (HF) cattle are bred for dairy traits only, while Norwegian dairy cattle (NOR) have been selected with some emphasis on beef characteristics. A comparison of production data from bulls of these two breeds has been presented previously (Kirkland et al., 2005). The objective of the present study was to evaluate specific carcass and meat quality parameters of HF and NOR bulls.

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Meat quality and fatty acid profile of the musculus longissimus lumborum in Czech Fleckvieh, Charolais and Charolais × Czech Fleckvieh bulls fed different types of silages

Czech Journal of Animal Science ◽

10.17221/1713-cjas ◽

2010 ◽

Vol 55 (No. 11) ◽

pp. 479-487 ◽

Cited By ~ 14

Author(s):

L. Bartoň ◽

D. Bureš ◽

V. Kudrna

Keyword(s):

Fatty Acid ◽

Meat Quality ◽

Fatty Acid Profile ◽

Dry Matter ◽

Intramuscular Fat ◽

Quality Parameters ◽

Dietary Energy ◽

Maize Silage ◽

Different Types ◽

Longissimus Lumborum

The effects of breed and diet containing different types of silages on meat quality parameters and fatty acid profile of m. longissimus lumborum (MLL) were evaluated in a total of 30 Czech Fleckvieh (CF), Charolais (CH) and Charolais × Czech Fleckvieh (CH × CF) bulls. The animals were fed two mixed diets: MS (based on maize silage) and LCS (based on legume-cereal mixture silage and lucerne silages) with different concentrations of dietary energy and fatty acids. The MLL from CH bulls had the lowest content of dry matter (P < 0.01), less protein (P < 0.01) and lighter meat (P < 0.01) compared to the CF. The extensive LCS diet reduced dry matter (P < 0.01) and intramuscular fat (P < 0.01) and increased the content of hydroxyproline (P < 0.05). The CH bulls exhibited higher PUFA n-3 (P < 0.05) and lower MUFA (P < 0.05) compared to the CF, with the CH × CF being intermediate. The LCS diet enhanced the proportions of PUFA (P < 0.05) and PUFA n-3 (P < 0.001) and reduced MUFA (P < 0.001). In conclusion, both breed and diet affected the meat quality and fatty acid profile of the intramuscular fat of the bulls. The replacement of maize silage with the legume-cereal mixture and lucerne silages in the diet reduced the concentration of intramuscular fat and improved its fatty acid profile from the human nutrition perspective.

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