Crossbreeding the Sardinian and East Friesian breeds in Sardinia

Boyazoglu, J.; Casu, Sara; Flamant, J. C.; Ruda, G.; Picinelli, G.; Carta, Raffaella

doi:10.1186/1297-9686-11-1-23

Cited by 10 publications

(5 citation statements)

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“…The higher birth weight of IF x S lambs than purebred (Table 1) is in agreement with [24][25][26] and [27]. The ADG, as expected, was influenced by litter size while the sire effect did not play a significant role, contrary to what found in [28] and [29].…”

Section: Discussionsupporting

confidence: 82%

Growth rate, meat quality and fatty acids composition of “Agnello di Sardegna” PGI light lambs

Acciaro

2020

ARTOAJ

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The work aims to fill the knowledge gap on performance and meat quality of “Agnello di Sardegna” PGI light lambs. To this end fourteen male lambs, homogeneous for age and litter size and consisting of seven pure Sarda (S X S) and seven crossbred Ile de France x Sarda (IF X S) lambs were compared for growth rate, dressing-out percent, chemical composition, fatty acids (FA) composition of Longissimus lumborum muscle and some nutritional indexes. Lambs suckled and followed their mothers at pasture until slaughtering at17±3 kg Live Weight and 50±1 days old, (means±s.d). The SXS lambs showed higher content of some healthy fatty acids (EPA) and better values of some nutritional indexes (Thrombogenic and Ipo-ipercholesterolemic index). The effect of litter size was more pronounced than sire effect, affecting both chemical and FA composition of light lambs. The single lambs showed higher branched chain fatty acids, linoleic and linolenic acid, CLA and other healthy fatty acids (DPA, DHA, omega 3 polyunsatured fatty acids) content. Overall, the value of nutritional indexes highlighted the high nutritional quality of light lamb meat. The results do not seem to justify the use of specialized meat breed as Ile de France for light lamb production, the short period between birth and slaughter not allowing the crossbred lambs to show their greater potential for muscle development. The high CLA content together with fatty acids considered beneficial for consumer health (DPA, DHA) in meat of single light lambs is a result to take into account in a meat production system aimed at high quality.

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Section: Discussionsupporting

confidence: 82%

Growth rate, meat quality and fatty acids composition of “Agnello di Sardegna” PGI light lambs

Acciaro

2020

ARTOAJ

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“…It is possible to quantify the improvement of a technological domain over time, as was first introduced by Moore [ 1 ] and has since been explored more broadly and deeply by many others [ 2 – 9 ]. All of these authors find exponential relationships between performance and time or equivalently that the fractional (or percentage) change per year is constant.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Determination of Technological Improvement from Patent Data

Benson

Magee

2015

PLoS ONE

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The results in this paper establish that information contained in patents in a technological domain is strongly correlated with the rate of technological progress in that domain. The importance of patents in a domain, the recency of patents in a domain and the immediacy of patents in a domain are all strongly correlated with increases in the rate of performance improvement in the domain of interest. A patent metric that combines both importance and immediacy is not only highly correlated (r = 0.76, p = 2.6*10-6) with the performance improvement rate but the correlation is also very robust to domain selection and appears to have good predictive power for more than ten years into the future. Linear regressions with all three causal concepts indicate realistic value in practical use to estimate the important performance improvement rate of a technological domain.

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“…In Mavrogenis (1981), East-Friesian breed contributed more to increasing the birth weight of crosses with Chios than the Awassi breed, while in this work Awassi contributed more than East-Friesian in raising birth weight of crosses with Istrian breed. Boyazoglu (1979) showed that crosses with 75% East-Friesian breed and 25 % Sarda breed had higher birth weights than crosses with less percent of East-Friesian breed. Positive effect of East-Friesian breed on birth weight of crosses with Sarda breed was also shown in work by Sanna et al (2001).…”

Section: Discussionmentioning

confidence: 99%

“…Their aim was to mate locally adapted autochthonous sheep (Istrian) with highly productive imported breeds, such as Awassi, East-Friesian, and Sarda sheep. Similar crossbreeding systems were utilized in the other Mediterranean regions (Boyazoglu et al, 1979, Sanna et al, 2001, Ugarte et al, 2001. Choice of the breeds that will result in the best performing crossbred and at the same time be suitable for production in the given environment is crucial, and therefore it would be desirable if the farmer could be supplied with the optimal crossbreeding scheme.…”

Section: Introductionmentioning

confidence: 99%

Inheritance of the birth weights in crosses between Istrian, Awassi, East-Friesian and Travnik Pramenka sheep in Croatia: a case study

Pocrnić¹,

Džidić²

2021

JCEA

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The purpose of the study was to estimate the influence of the additive and non-additive genetic effects on the birth weight, using two different crossbreed models. Data on 1176 birth weights were collected. The animals were crosses, with different ratios of Awassi, East-Friesian, Istrian, and Travnik Pramenka sheep breed. The focal breed in this study was Istrian, which is an autochthonous breed in Croatia. In both models mixed procedure was used with random effect of sire and fixed effects of sex, year and month of birth, litter size, and direct inbreeding. The first model contained the additive breed effects, while the second model additionally included non-additive effects of heterosis and recombination loss.Sex, litter size, year and month of birth significantly affected birth weight in both models. Effect of direct inbreeding was negative and significant only in second model. Significant positive additive breed effect was estimated for Awassi breed in both models. The East-Friesian additive breed effect was positive in both models, but it was significant for the first one only. The positive and significant heterosis effect for the birth weight was estimated for the crosses between East-Friesian and Travnik Pramenka, as well as between Travnik Pramenka and Istrian breed. Same crosses showed significant and positive effect of recombination loss. The negative effect of recombination loss was estimated for the crosses of Awassi breed.

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Crossbreeding the Sardinian and East Friesian breeds in Sardinia

Cited by 10 publications

References 0 publications

Growth rate, meat quality and fatty acids composition of “Agnello di Sardegna” PGI light lambs

Growth rate, meat quality and fatty acids composition of “Agnello di Sardegna” PGI light lambs

Quantitative Determination of Technological Improvement from Patent Data

Inheritance of the birth weights in crosses between Istrian, Awassi, East-Friesian and Travnik Pramenka sheep in Croatia: a case study

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