Effect of body condition score at mating on the reproductive performance of Kivircik sheep under an extensive production system

Yılmaz, Murat; Altin, Tufan; Karaca, Orhan; Cemal, İ̇brahim; Bardakçioğlu, Hüsnü Erbay; Yılmaz, Onur; Taşkın, Turğay

doi:10.1007/s11250-011-9841-1

Cited by 36 publications

(31 citation statements)

References 12 publications

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“…Gender had a statistically significant effect on muscle depth. These results are consistent with literature data [3,17] .…”

Section: Discussionsupporting

confidence: 94%

Association of Calpastatin (CAST) Gene Polymorphism with Weaning Weight and Ultrasonic Measurements of Loin Eye Muscle in Kıvırcık Lambs

Yılmaz¹,

Cemal²,

Karaca³

et al. 2014

Kafkas Univ Vet Fak Derg

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SummaryThis study was to investigate the association of Calpastatin (CAST) gene with carcass quality characteristics in Kıvırcık lambs, which are important in Turkey in terms of meat production and quality. It was found that allele M of Calpastatin locus was the most common allele. MM, MN and NN genotype frequencies were 72.91%, 22.66% and 4.43%, respectively. This SNP was associated with backfat thickness and skin+backfat thickness values of loin eye muscle (Musculus longissimus thoracis et lumborum-MLD) and average daily gain (P<0.05). Live weight, average daily gain, backfat thickness and skin+backfat thickness mean values were found to be lower in animals with NN genotype when compared to those with MM and MN genotype. The results showed that Calpastatin gene affected back fat and skin+backfat and that they had less fatty carcass than those with NN genotype. Keywords: Kıvırcık, CAST, Ultrasonic measurement, MLD, Weaning weight Kıvırcık Kuzularda Calpastatin Gen Polimorfizmi ve Sütten Kesim Ağırlığı ve Ultrasonik Göz Kası Ölçümleri İle İlişkisi ÖzetBu çalışmada Türkiye'de önemli bir et tipi koyun olan Kıvırcık ırkı kuzularda karkas kalite karakteristikleri ile Calpastatin geninin ilişkisi araştırılmıştır. Kıvırcık kuzularda Calpastatin lokusunun M allelinin en yaygın allel olduğu tespit edilmiştir. MM, MN ve NN genotipleri için genotip frekansları sırasıyla %72.91, %22.66 ve %4.43 olarak bulunmuştur. Bu tek nokta mutasyonunun (SNP) bel gözü kasına (Musculus longissimus thoracis et lumborum-MLD) ait yağ kalınlığı ve deri+yağ kalınlığı değerleri ve günlük canlı ağırlık artışı ile ilişkili olduğu ortaya konmuştur (P<0.05). Canlı ağırlık, ortalama günlük canlı ağırlık artışı, yağ kalınlığı ve deri+yağ kalınlığı ortalamaları NN genotipine sahip hayvanlarda MM ve MN genotipine göre daha düşük bulunmuştur. Elde edilen bulgular yağ kalınlığı ve deri+yağ kalınlığı üzerine Calpastatin allelerinin etkili olduğunu ve NN genotipi taşıyanların diğerlerine göre daha yağsız karkasa sahip olduğunu göstermektedir.

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“…Gender had a statistically significant effect on muscle depth. These results are consistent with literature data [3,17] .…”

Section: Discussionsupporting

confidence: 94%

Association of Calpastatin (CAST) Gene Polymorphism with Weaning Weight and Ultrasonic Measurements of Loin Eye Muscle in Kıvırcık Lambs

Yılmaz¹,

Cemal²,

Karaca³

et al. 2014

Kafkas Univ Vet Fak Derg

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“…The differences between the body conditions scores of ewes in this study could be attributed to their status within the hierarchy of the herd, competition among them and physiological differences (milk yield levels, suckling and having twin lamb) (Gonzáles-García et al, 2015). A BCS above 2.5 is recommended at mating (Thompson and Meyer, 1994;Yilmaz et al, 2011;Vatankhah et al, 2012;Van-Burgel et al, 2011). The BCS values of ewes determined in the present study are in accordance with this recommendation (68.2 % of ewes were in the medium and fat BCS groups; Table 2 and Fig.…”

Section: Discussionsupporting

confidence: 85%

“…Additionally, there are many reports that ovulation rate and litter size were influenced by ewe BW, parity and BCS (Michels et al, 2000). It was reported in some studies (Michels et al, 2000;Yilmaz et al, 2011;González-García and Hazard, 2016) that parity has a strong effect on fecundity and prolificacy or litter size in sheep farming. The present study showed that animal body fat reserves can affect the return rate and fecundity of ewes.…”

Section: Discussionmentioning

confidence: 99%

Body condition status at mating affects gestation length, offspring yield and return rate in ewes

2018

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Abstract. The present study was planned to determine the effect of ewe body condition score (BCS) and parities on fertility, return rate, gestation length, fecundity, litter size and lamb birth weight. Data were collected from 284 heads of ewes with first to fifth parity and raised at a state farm for three consecutive (2002)(2003)(2004) years. Teaser rams were used to monitor estrus twice daily in the morning and in the evening from September to October. BCSs and body weights (BWs) were recorded at mating and postpartum. The ewes, at mating time in breeding season and within first 6 h after the expulsion of fetal membranes, were divided into four groups on the basis of their BCS: thin (BCS = ≤ 2.0; n = 70; 38), medium (BCS = 2.5-3.0; n = 122; 142), fat (BCS = 3.5-4.0; n = 72; 59) and very fat (BCS = ≥ 4.5; n = 20;17). BCSs and BWs of ewes at postpartum were highly correlated with lamb birth weight (R = 0.486, P < 0.01, and R = 0.130, P < 0.05, respectively). BCSs and BWs of ewes at postpartum had positive effects on lamb birth weight (Y = 3.43 ± 0.10 + 0.130 + 0.047 ewe body condition score (EBCS), P < 0.01; Y = 2.92 ± 0.42 + 0.018 ± 0.009 ewe body weight (EBW), P < 0.05 kg of lamb birth weight per BCS and kilogram of ewe live weight, respectively). The fertility rate, litter size and fecundity were higher in the medium and fat groups than thin and very fat groups (χ 2 = 10.607, P < 0.01). The BW and BCS at postpartum affected gestation length positively (P < 0.05). Return rate or number of coitus for conception were higher (P < 0.05) in thin and very fat groups than medium and fat groups. The data revealed that the ewes with medium and fat body condition (BCS = 2.5-4.0) scores were profitable.

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“…Studies have reported direct impacts of ewe BCS on reproductive performance (Yılmaz et al, 2011), colostrum production (Jalilian and Moeini, 2013), survival and growth rates of lambs (Sarı et al, 2013;Corner-Thomas et al, 2015a, b).…”

Section: Introductionmentioning

confidence: 99%

The effect of ewe body condition at lambing on growth of lambs and colostral specific gravity

Karakuş

Atmaca

2016

Arch. Anim. Breed.

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Abstract. This study was carried out on 60 Norduz ewes to determine the effect of ewe body condition at lambing on growth of lambs and colostral specific gravity. Body condition score (BCS), ranging from 2.5 to 3.5, had no effect on lamb live weight at birth, 30, 60, 90 and 120 days of age (P > 0.05). The average colostral specific gravity determined as 1.049 was not affected by body condition of ewes. A moderate positive correlation (r = 0.436) was observed between condition score and live weight of ewes (P < 0.001). The results of this study suggest that BCS is not a reliable estimator of live weight for Norduz ewes.

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Effect of body condition score at mating on the reproductive performance of Kivircik sheep under an extensive production system

Cited by 36 publications

References 12 publications

Association of Calpastatin (CAST) Gene Polymorphism with Weaning Weight and Ultrasonic Measurements of Loin Eye Muscle in Kıvırcık Lambs

Association of Calpastatin (CAST) Gene Polymorphism with Weaning Weight and Ultrasonic Measurements of Loin Eye Muscle in Kıvırcık Lambs

Body condition status at mating affects gestation length, offspring yield and return rate in ewes

The effect of ewe body condition at lambing on growth of lambs and colostral specific gravity

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