Performance, Carcass Traits and Quality of Longissimus lumborum muscle of Santa Inês lambs

The aim of this trial was to determine the effect of the presence of wire or plastic mesh elevated platforms on carcass traits and meat quality characteristics, with particular attention to the oxidative status of growing rabbits. A total of 174 five-week old rabbits were randomly divided into 3 groups with 2 replications (6 pens; 29 rabbits/pen): pens without platforms (NoP) with a stocking density of 16 rabbits/m2 and pens with wire-mesh platforms (WP) or plastic-mesh platforms (PP) that were placed on 2 levels, with a stocking density of 16 rabbits/m2 on the floor or 9.14 rabbits/m2 when the platform were included. At 84 d rabbits were slaughtered. The slaughter traits and Longissimus lumborum (LL) physical and chemical compositition were not affected by treatments. Rabbits from the PP group showed the highest retinol and γ-tocotrienol content on LL muscle, whereas the NoP ones showed a higher α-tocotrienol and α-tocopherol level. The absence of platforms led to decreased (P<0.001) thiobarbituric acid-reactive substances values and induced an improvement in n-3 polyunsaturated fatty acids. Levels of linoleic, linolenic and docosahexaenoic acids were equal to those of the WP group (23.45, 3.75, 0.64% in NoP and 22.6, 4.14, 0.53% in WP, respectively) but higher than in PP rabbits (20.86, 3.05, 0.45%, respectively). It can be concluded that the pens with elevated platforms provide greater possibilities for movement, which is beneficial from the viewpoint of animal welfare. However, this greater activity influences the oxidative status of the meat, decreasing the antioxidant content and worsening the lipid oxidation of rabbit meat.

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Meat quality of castrated and non-castrated Santa Ines lambs subjected to food restriction

Semina Ciências Agrárias ◽

10.5433/1679-0359.2016v37n3p1515 ◽

2016 ◽

Vol 37 (3) ◽

pp. 1515

Author(s):

Dayanne Lima de Sousa ◽

Patrícia Guimarães Pimentel ◽

Elisabeth Mary Cunha da Silva ◽

Elzânia Sales Pereira ◽

Assis Rubens Montenegro ◽

...

Keyword(s):

Body Weight ◽

Food Restriction ◽

Mean Values ◽

Randomized Design ◽

Yellow Color ◽

Quality Aspects ◽

Longissimus Lumborum ◽

Santa Inês ◽

Time Required

This study aimed to evaluate the quality of meat of castrated and non-castrated Santa Ines lambs submitted to food restriction. Were used 30 lambs, 15 castrated and 15 non-castrated, about two months of age and average initial body weight of 13.00 ± 1.49 kg. The lambs were distributed in a completely randomized design in a factorial arrangement 3 x 2 (restriction level x sex class), according to the amount of food provided. The duration of the experiment was determined by the time required for the animals in the one of the groups achieved 28 kg of body weight. There was interaction between food restriction levels and sex class to the variables intensity of yellow color and pH in the longissimus lumborum muscle and the shear force in the semimembranosus muscle. In non-castrated animals, the intensity of yellow color was higher in the longissimus lumborum muscle at the level of 30% of food restriction. There was no significant interaction between food restriction levels and sex class for the quality aspects related to color saturation, color tone, luminosity, red intensity, water holding capacity and cooking losses in longissimus lumborum and semimembranosus muscles. Although food restriction and sex class have influenced the variables related to the quality of meat of the animals evaluated, the mean values are considered acceptable by the literature. The feeding restriction levels and sex class influence some important features of quality of Santa Ines lamb meat.

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Effects of slaughter age on carcass traits and meat quality of crossbred (Duroc × Landrace × Yorkshire) finishing pigs

Animal Biotechnology ◽

10.1080/10495398.2021.1916512 ◽

2021 ◽

pp. 1-7

Author(s):

Zhongyang Guo ◽

Xiaoling Chen ◽

Daiwen Chen ◽

Mingzhou Li ◽

Jingdong Yin ◽

...

Keyword(s):

Meat Quality ◽

Carcass Traits ◽

Finishing Pigs ◽

Slaughter Age

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Carcass Composition, Meat Quality and Sensory Quality of Gentile di Puglia Light Lambs: Effects of Dietary Supplementation with Oregano and Linseed

Animals ◽

10.3390/ani11030607 ◽

2021 ◽

Vol 11 (3) ◽

pp. 607

Author(s):

Giuseppe Scarpa ◽

Simona Tarricone ◽

Marco Ragni

Keyword(s):

Meat Quality ◽

Control Diet ◽

Saturated Fatty Acids ◽

Total Content ◽

Carcass Composition ◽

Origanum Vulgare ◽

Growth Performances ◽

Longissimus Lumborum ◽

Dietary Treatments

There is a growing demand by the modern consumer for meat containing less fat and lower levels of saturated fatty acids, which are considered to increase the risk of coronary heart disease. In southern Italy, the Gentile di Puglia breed is one of the most common on farms, and the light lambs are often consumed. The study evaluates the effect of a diet containing extruded linseed (Linum usitatissimum) on growth performances, carcass traits, and meat quality in Gentile di Puglia light lambs. Thirty-six male lambs are weaned at about 20 days of age, and divided into three groups—each group is either fed a control diet (C), a diet containing 3% extruded linseed (L), or a diet containing 3% extruded linseed and 0.6% oregano (Origanum vulgare) (L + O). The lambs’ growth performances and the slaughtering and dissection data did not differ between groups. Dietary treatments have no significant effect on the quality and chemical composition of Longissimus lumborum (Ll). The mount of linoleic acid in Ll meat is significantly higher in the L group, and this positively affected the total content of n-3 Polyunsaturated Fatty Acid, as well as the n-6/n-3 ratio. The good results obtained concerning the sensory traits meet the requirements of the market’s consumer.

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Carcass traits and meat quality of Texel lambs raised in Brachiaria pasture and feedlot systems

Animal Science Journal ◽

10.1111/asj.13394 ◽

2020 ◽

Vol 91 (1) ◽

Author(s):

Pâmila Carolini Gonçalves Silva ◽

Camila Celeste Brandão Ferreira Ítavo ◽

Luís Carlos Vinhas Ítavo ◽

Marina Nadai Bonin Gomes ◽

Gelson Luís Dias Feijó ◽

...

Keyword(s):

Meat Quality ◽

Carcass Traits

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Performance, carcass traits and meat quality of lambs fed with different roughage:concentrate ratios associated with variable physically effective neutral detergent fibre content

The Journal of Agricultural Science ◽

10.1017/s0021859621000459 ◽

2021 ◽

pp. 1-11

Author(s):

L. de O. Queiroz ◽

A. M. Barbosa ◽

G. B. Mourão ◽

M. A. Fonseca ◽

L. F. B. Pinto ◽

...

Keyword(s):

Fatty Acids ◽

Particle Size ◽

Meat Quality ◽

Average Daily Gain ◽

Carcass Traits ◽

Faecal Excretion ◽

Neutral Detergent Fibre ◽

Fatty Acids Profile ◽

Colour Parameter

Abstract This study evaluated the effect of roughage:concentrate (R:C) ratio associated with a variable particle size of physically effective neutral detergent fibre (peNDF8) in the forage (Tifton-85 hay) on the performance, carcass traits and meat quality of lambs. Seventy-two 4-month-old, non-castrated Santa Ines male lambs (23.5 ± 2.32 kg BW) were distributed in a completely randomized design, in a 2 × 2 factorial arrangement [two peNDF8 hay particle sizes (13 and 6 mm) and two R:C ratios (700:300 and 500:500 g/kg DM total)]. DMI, DM, NFC and TDN digestibility's, N-intake and N-faecal excretion were affected by the R:C ratio (P < 0.05). However, the N-retained was not affected by the studied variables (P > 0.05). It was observed an interaction (P < 0.05) between the peNDF8 and R:C ratios for final BW, average daily gain (ADG), colour parameters and pH 24 h. The lower roughage ratio provided greater (P < 0.05) concentrations of C14:1, C16:1–cis9, C18:1–cis9, ΣMUFA, Σn–6:Σn–3 and hypocholesterolemic/hypercholesterolemic index, enzymatic activity Δ9desaturase-C16 and -C18. Lambs fed a lower roughage diet had improved performance and feed efficiency, however, presented reduced polyunsaturated fatty acids (PUFA) concentrations in the meat, especially Σn–3 family. Higher roughage diet and larger peNDF8 particle size improved the concentrations of PUFA while decreased Σn–6:Σn–3 ratio in meat. Larger peNDF8 particle size associated with higher roughage proportion, have reduced animal performance however, it increased protein concentration, a* and C* colour parameter without affecting fatty acids profile of Longissimus lumborum muscle.

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