Effects of concentrate levels on fattening performance, carcass and meat quality attributes of Small East African×Norwegian crossbred goats fed low quality grass hay

Mushi, D.E.; Safari, J.; Mtenga, L.A.; Kifaro, G.C.; Eik, Lars Olav

doi:10.1016/j.livsci.2009.01.012

Cited by 50 publications

(50 citation statements)

References 28 publications

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“…This result supports earlier reports by several authors (Silva and Araujo, 2000;Mushi et al, 2009;Moyo et al, 2012) indicating crossbreeding as tool for improving meat production traits in goat. The fluctuations with age in the percent F1 heterosis agrees with the earlier report of William et al (2011) who obtained different percent heterosis for bodyweight at birth, pre-weaning and weaning stages in the crosses involving Boer, Kiko and Spanish goat breeds.…”

Section: Discussionsupporting

confidence: 93%

Heterosis and Reciprocal Effect For Body Weight and Leather Properties in Hybrid Goats

2017

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Identification and evaluation of economically important traits in livestock is central to genetic improvement. The objective of this study was to evaluate heterosis and reciprocal effects for bodyweight and leather properties among progenies of pure and reciprocal crossing of West African Dwarf (WAD) and Red Sokoto (RS) goats. Bodyweights of 96 kids were recorded at birth, weaning and yearling. Skins collected from slaughtered goats at yearling were processed to leather using vegetable tanning approach. The leathers were subjected to physical analysis to determine Thickness, Percentage Elongation (PE), Surface Area, weight and grain properties comprising Load at Crack, Load at Tear, Distension at Crack and Distension at Tear. Heterotic effect for bodyweight was negative at birth (-8.99%) and weaning (-11.15%) but positive at yearling (6.64%). Specific heterosis for bodyweight at yearling was higher for progenies of WAD does serviced with RS bucks. General and specific heterosis were positive for all the leather traits except PE. Specific heterosis was higher when RS does were serviced with WAD bucks. Reciprocal effects for bodyweight reduces with increase in goats' age (Birth > Weaning > Yearling: 9.88 > 6.28 > 5.62).Reciprocal effects for grain properties were generally higher than other leather traits. This study concluded that WAD and RS goats are dissimilar in leather traits and bodyweight at different ages, and that choice of sire or dam for successful crossbreeding programme is trait dependent.

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Section: Discussionsupporting

confidence: 93%

Heterosis and Reciprocal Effect For Body Weight and Leather Properties in Hybrid Goats

2017

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“…As reported by Oman et al (1999), the advantage of the Boer over Boer*Spanish is primarily in their higher growth potential and feed efficiency. Upgrading local tropical breed with exotic ones such as in Tanzania (Mushi et al 2009) did not systematically result in very high carcass conformation and index even when animals are reared under very intensive feeding system (data recalculated: 3.2 and 0.212, respectively).…”

Section: Carcass Conformationmentioning

confidence: 97%

“…According to Fehr et al (1976), the linear carcass measurements are indices of skeletal development and indirectly help to determine carcass conformation; they are dependent on genotype, sex and feeding regimen (inducing differences in growth patterns; Attah et al 2004;Mushi et al 2009). Thus, comparisons of absolute values with those from other studies are difficult.…”

Section: Carcass Conformationmentioning

confidence: 99%

Carcass conformation and cut composition of Creole goat from Guadeloupe

Liméa

Bocage²,

Arquet

et al. 2009

Trop Anim Health Prod

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Carcass data base of 164 Creole male goats was used in order to provide factual data on the carcass conformation. Standardised procedures of carcass measuring and cutting were followed. The European official grid of light lamb is implemented for meat goat in the French West Indies and included five levels. Weights of carcass, cuts and tissues, quality scores and linear measurements were analysed. Feeding system, age at slaughter and weight were taken into account for statistical analysis. There were significant differences among carcass conformation classes (CC) for many traits except for the fat score, leg length and compactness ratio (carcass width on length): 2.2, 34.5 cm and 0.30 on average, respectively. The values of chilled carcass weight and yield and the carcass linear measurements steadily increased until conformation class 4 or 5: 6.7 to 11.2 kg, 49% to 55% and 52.4 to 58.0 cm carcass length. For the weights of carcass cuts, significant differences appeared between two groups: classes 1 and 2 vs. classes 3, 4 and 5. Regardless of the carcass weight, the distribution of prime cuts remained similar. The indices calculated on a weight basis (kg/cm), either for the carcass or the leg, increased significantly (P<0.01): with 54% and 63% difference between the two extreme classes, respectively. The muscle, bone and fat proportions in the shoulder did not vary between CC with 0.72, 0.22 and 0.06, respectively. Corresponding traits in leg were 0.74, 0.23 and 0.03; the last two were different (P<0.05) from class 1 to class 5. The muscle/bone ratios calculated either in shoulder or in leg ranged from 3.1 to 3.6 (P>0.05).

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“…The WB shear force values (29.8 to 32.6 N) reported in this study are lower than those (between 29.8 to 35.6 N) of Marume (2010) and were slightly more tender than a value of 55 N, which is a benchmark for exceptionally tough meat. Exceeding 55 N would be considered objectionably tough by trained sensory panels and consumers (Abdullah & Musallam, 2007;Mushi et al, 2009). The tenderness in SC and MOL meat could be due to a higher amount of intramuscular fat, but within the normal ranges reported elsewhere (Dhanda et al, 2003;Kadim et al, 2003).…”

Section: Discussionmentioning

confidence: 97%

“…However, undernourished goats tend to produce poor quality meat (Mushi et al, 2009), which is attributed to poor nutrition and genotype (Madruga et al, 2008). The differences in meat composition may affect the flavour and texture of meat and consequently consumer preferences (Font i Furnols et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Effect of feeding Moringa (Moringa oleifera) leaf meal on the physico-chemical characteristics and sensory properties of goat meat

Moyo¹,

Masika²,

Muchenje³

2014

SA J. An. Sci.

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The objective of this study was to determine the physico-chemical characteristics and consumer sensory scores of chevon from crossbred Xhosa lop-eared goats supplemented with Moringa oleifera leaf meal (MOL). Twenty-four goats, aged 8 months, were divided into three groups with eight goats in each. All three groups were fed a basal diet of grass hay (GH) ad libitum and wheat bran at 200 g/head/day. In addition to the basal diet, the MOL and sunflower seed cake (SC) groups were fed 200 g dried M. oleifera leaf meal and 170 g sunflower seed cake, which contained 238 g and 233 g crude protein/kg, respectively, with GH having 141 g. Diet influenced chevon colour. Chevon from MOL-and SC-fed goats had higher values for lightness (L*) 24 h post mortem. The redness (a*) values of chevon 24 hours post mortem were significantly higher in MOL supplemented goats. Warner Bratzler shear force (WBSF) values of chevon from SC (30.1 N) and MOL (29.8 N) were lower than those for meat from GH diet (32.6 N). Chevon from goats fed GH diet had significantly higher cooking losses (29.5%) than that from the MOL (25.4%) and SC (25.6%) fed groups. Diet influenced the consumer sensory scores of chevon from goats supplemented with MOL, which had higher first bite, aroma, flavour and juiciness scores. Supplementing crossbred Xhosa lop-eared goats with an MOL diet produced chevon with the highest physico-chemical characteristics and consumer sensory scores. ______________________________________________________________________________________

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Effects of concentrate levels on fattening performance, carcass and meat quality attributes of Small East African×Norwegian crossbred goats fed low quality grass hay

Cited by 50 publications

References 28 publications

Heterosis and Reciprocal Effect For Body Weight and Leather Properties in Hybrid Goats

Heterosis and Reciprocal Effect For Body Weight and Leather Properties in Hybrid Goats

Carcass conformation and cut composition of Creole goat from Guadeloupe

Effect of feeding Moringa (Moringa oleifera) leaf meal on the physico-chemical characteristics and sensory properties of goat meat

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