Wyniki wyszukiwania

1

Carcass composition and meat quality of New Zealand White and Californian rabbits

100%

Maj D.

Annals of Animal Science. Supplement

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2005

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nr 2

2

The effect of ad libitum and restricted feeding on fattening performance, carcass composition and meat quality of pigs

86%

Kapelanski W., Falkowski J., Hammermeister A.

Natural Sciences

|

2001

|

tom 09

3

Fattening performance and carcass traits in crossbred ram lambs

72%

Unal N., Akcapinar H., Aytac M., Atasoy F.

Medycyna Weterynaryjna

|

2006

|

tom 62

|

nr 04

401-404

Fattening performance and carcass compositions were compared between Akkaraman (A), Kývýrcýk x Akkaraman F2 (KAF2 ), Kývýrcýk x (Kývýrcýk x Akkaraman) first backcross (KAB1 ), Chios x Akkaraman F2 (CAF2 ) and Chios x (Chios x Akkaraman) fist backcross (CAB1 ) ram lambs. After weaning at 3 months of age, the lambs were fed ad libitum concentrate and 300 g of alfalfa hay per lamb, per day. Six lambs of each genotype were slaughtered at 45 kg live weight and the carcasses were evaluated. The average daily weight gain and feed conversion efficiencies were 284, 271, 279, 282, 274 g and 4.92, 4.81, 4.76, 4.89, 5.01 for A, KAF2 , KAB1 , CAF2 and CAB1 , respectively. Corresponding values for cold dressing percentages were 49.28, 48.89, 48.18, 49.15 and 46.79, respectively. The weight of various fat depots differed (P<0.001 or P<0.01) among genotypes, but the weight of major cuts as a percentage of carcass weight did not differ significantly among genotypes except for percentage loin (P<0.05). It was concluded that there were no statistically significant differences for fattening performance among genotypes and that KA crossbred lambs had a higher percentage of loin and a lower percentage of bone in some of the major cuts. Also, there was a tendency for genotypes with lower tail fat weight to have a higher depot fat.

4

Carcass composition and breast muscle microstructure in guinea fowl (Numida meleagris L.) of different origin

72%

Bernacki Z., Bawej M., Kokoszynski D.

Folia Biologica

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2012

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tom 60

|

nr 3-4

5

Reduction of body fatness and meat fat content in lambs by supplementing their diet with isomerised grapeseed oil

72%

Bodkowski R., Patkowska-Sokola B.

Animal Science Papers and Reports

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2013

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tom 31

|

nr 3

Investigated was the effect of isomerised grapeseed oil supplementation on carcass composition and body fat in lambs and fat content of their meat. Grapeseed oil alkaline isomerisation and crystallisation with urea resulted in synthesis of conjugated dienes amounting to linoleic acid (CLA) 77.6% FFA. The enrichment of fattening lambs´ rations with the additive at 18 g/animal/day did not influence body weight gain, carcass weight and Longissimus dorsi parameters (weight, width,depth). However, it reduced body fatness by 19 to 25%, and decreased the fat content of muscle tissue by 17 to 22 percentage points.

6

Carcass composition and breast muscle microstructure in selected vs non-selected ducks

72%

Witkiewicz K., Kontecka H., Ksiazkiewicz J., Szwaczkowski T., Perz W.

Animal Science Papers and Reports

|

2004

|

tom 22

|

nr 1

Forty ducks aged 7 weeks of strains A44 and P66 and conservative flocks P33 and K2 were investigated, 5 males and 5 females from each. Carcass composition was determined and microstructure of pectoralis maior muscle analysed. Males and females of strain A44 and those from flock K2 were characterized by a significantly greater breast muscles per cent of carcass compared to strain P66 and flock P33, with a significantly lower per cent of thigh and of lower-thigh muscles in K2 males than in males P66 and P33. Carcasses of K2 females contained significantly less skin with subcutaneous fat (incl. neck skin) compared to A44,P66 and P33 females. Pectoralis maior muscle of males and females from both conservative floks was characterized by significantly greater per cent of red fibres and lower per cent of white fibres,as well as smaller diameter of both fibre types. Moreover, the mean white fibre diameter in K2 was significantly lower than in P33 birds.Satisfactory body weight found in birds of both sexes from conservative flock P33 , and considerable muscling, low fatness, greater per cent of red fibres and lower diameter of both fibre types in P33 and K2 birds indicate the feasibility of using them in production of valuable food and in breeding programmes aimed at improving the existing, and creating new, strain(s) of ducks.

7

Carcass composition and meat characteristics of Pekin ducks in relation to age at slaughter and level of maize distiller’s dried grains with solubles in diets

58%

Kowalczyk A., Lukaszewicz E., Adamski M., Kuzniacka J.

Journal of Animal and Feed Sciences

|

2012

|

tom 21

|

nr 1

The effect of the level of maize distiller’s dried grains with solubles (DDGS) in diets for ducks and duration of the fattening period on feed efficiency, body weight, carcass and meat quality was studied. One hundred and sixty commercial Pekin ducklings were divided randomly into four groups (four replicates, each). From 1 to 21 days of age all birds received the same commercial feed, then from day 22 to 56 the ducks were fed with a diet containing one of four levels of DDGS (%): 0 (control), 15, 25 or 30. All ducks were weighed individually at 1, 21, 49 and 56 days of age and feed intake and feed efficiency were calculated. At 49 and 56 days of rearing, 10 birds with body weights close to the average weight for the group were chosen from each group, slaughtered and the following parameters were evaluated: weight of eviscerated carcass with neck, neck without skin, wings with skin, breast and leg muscle, edible giblets (heart, liver, gizzard), skin with subcutaneous fat, abdominal fat, remainder of carcass, as well as the physical and chemical characteristics of breast meat. Inclusion of maize DDGS in amounts up to 25% in the diet of ducks from day 22 of rearing had no adverse effect on the variables studied, regardless of age at slaughter. Moreover, it allowed decreasing the soyabean meal and wheat contents from 18.0 and 41.6% in the control feed to 10.0 and 24.1% in the 25% DDGS feed, respectively.

8

Carcass composition of Polish Lowland and Polish Merino lambs fed diets containing different protein levels

58%

Pajak J. J., Zebrowska T., Janocha A., Kowalik B., Dakowski P.

Journal of Animal and Feed Sciences. Supplement

|

2001

|

tom 10

|

nr 2

9

An estimation of protein and fat content in the carcass based on ultrasonic measurement in sire breeds of pigs

58%

Raj S., Skiba G., Weremko D., Fandrejewski H.

Annals of Animal Science. Supplement

|

2002

|

nr 2

10

Gas chromatography-mass spectrometric confirmatory method for the determination of clenuterol residues in animal urine and liver samples

58%

Sniegocki T., Zmudzki J., Posyniak A., Semeniuk S.

Bulletin of the Veterinary Institute in Puławy

|

2003

|

tom 47

|

nr 1

11

Growth performance of common carp, Cyprinus carpio fed varying lipid levels through low protein diet, with a note on carcass composition and digestive enzyme activity

58%

Manjappa K., Keshavanath P., Gangadhara B.

Acta Ichthyologica et Piscatoria

|

2002

|

tom 32

|

nr 2

Protein sparing by lipid has been demonstrated in certain cultivable species of fish. This study was carried out using four low protein isonitrogenous diets (24% crude protein) formulated by supplementing varied levels of fish oil (0, 3, 6, and 9%). The diets were fed for 120 days at 5% body weight to triplicate groups of common carp (av. wt. 2.13-2.21 g) stocked at 1 per m2 in mud bottomed cement tanks (18 m2), fertilized with poultry manure. The growth of fish was the highest (P < 0.05) with the diet containing 6% fish oil, followed by 3, 9, and 0%. Food conversion ratio and protein efficiency ratio improved with increasing dietary lipid level. Dietary lipid had a positive impact on carcass lipid level (P < 0.05). Moisture and crude protein did not vary (P > 0.05) from that of the control. Survival ranged from 96.29 (T1) to 100% (T0) without any significant (P > 0.05) difference among the treatments. While there was a general increase in amylase activity in the treated fish, protease activity showed a reduction with increase in oil supplementation. No difference (P > 0.05) in lipase activity was observed between the different treatments. The results indicate the beneficial effects of incorporating fish oil in the diet of common carp.

12

Comparison of slaughter value and muscle properties of selected cattle breeds in Poland - review

51%

Iwanowska A., Pospiech E.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2010

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tom 09

|

nr 1

7-22

Abstract. The aim of the paper was the comparison of slaughter value and muscle properties of dual-purpose cattle most common in Poland with that of beef type, from which high quality culinary meat is obtained. Four breeds were compared: two of them were dual-purpose type i.e. Holstein-Fresian of Black and White variety and Polish Red and the other two - of beef type i.e. Limousine and Hereford. There are discussed factors influencing cattle slaughter value and muscle properties, i.e. the impact of the utility type, gender, age, feeding Systems, as well as maturation rate of animals. The slaughter value was presented using the dressing percentage and the content of main components in the carcass i.e. the muscle tissue, fat and bones. The tissue composition of analysed cattle breeds and the share of main cuts in their carcasses were presented. Higher daily gains of beef type or dual-purpose breeds are connected with a higher number of muscle fibers (hyperplasia) and also with a bigger size of their diameter (hypertrophy). These phenomena are accompanied by increased lightness of meat colour what is the result of changes in the muscle fibers metabolism and the proportion of myosin heavy chains (MHC) of the I, Ila and IIx type. Observed differences in the slaughter value existed not only between breeds, but also inside them indicating the need for further improvement of animal selection and deeper analysis of factors influencing it. It was stated that the amount of culinary meat obtained from carcasses may be increased not only through the selection of corresponding genotypes, but also through the modification of the system of carcass cutting. The performed analysis of the slaughter value emphasizes special significance of the domestic Polish Red cattle also as a breed for production of good quality meat similar to beef cattle breeds.

Ograniczanie wyników

Carcass composition and meat quality of New Zealand White and Californian rabbits

The effect of ad libitum and restricted feeding on fattening performance, carcass composition and meat quality of pigs

Fattening performance and carcass traits in crossbred ram lambs

Carcass composition and breast muscle microstructure in guinea fowl (Numida meleagris L.) of different origin

Reduction of body fatness and meat fat content in lambs by supplementing their diet with isomerised grapeseed oil

Carcass composition and breast muscle microstructure in selected vs non-selected ducks

Carcass composition and meat characteristics of Pekin ducks in relation to age at slaughter and level of maize distiller’s dried grains with solubles in diets

Carcass composition of Polish Lowland and Polish Merino lambs fed diets containing different protein levels

An estimation of protein and fat content in the carcass based on ultrasonic measurement in sire breeds of pigs

Gas chromatography-mass spectrometric confirmatory method for the determination of clenuterol residues in animal urine and liver samples

Growth performance of common carp, Cyprinus carpio fed varying lipid levels through low protein diet, with a note on carcass composition and digestive enzyme activity

Comparison of slaughter value and muscle properties of selected cattle breeds in Poland - review