The genetic improvement of Syrian Awassi sheep with special reference to milk production

Hossamo, H. E.; Owen, J. B.; Farid, M. F. A.

doi:10.1017/s0021859600056380

Cited by 12 publications

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Means, standard deviations and extreme values of LW in each half score of BCS (Table 1) show that, even in nonlactating and non-pregnant animals, ewes with a similar LW can exhibit very different BCS or, in other words, ewes scoring the same BCS may have very different LW. This can probably be justified by different body sizes of ewes in this breed and/or variation in gastrointestinal contents, which are some of the most important factors that make LW difficult to interpret in ruminants (Russel et al, 1971;Hossamo et al, 1986;Jarrige, 1988).…”

Section: Resultsmentioning

confidence: 99%

Relationships of Body Composition and Fat Partition with Body Condition Score in Serra da Estrela Ewes

Caldeira¹,

Portugal²

2007

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

Twenty eight non-lactating and non-pregnant adult Serra da Estrela ewes, ranging in body condition score (BCS) from 1 to 4 were used to study the relationships between BCS, live weight (LW), body composition and fat partition. Ewes were slaughtered and their kidney knob and channel fat (KKCF), sternal fat (STF) and omental plus mesenteric fat (OMF) were separated and weighed. Left sides of carcasses as well as the respective lumbar joints were then dissected into muscle, bone and subcutaneous (SCF) and intermuscular fat (IMF). The relationship between LW and BCS was studied using data from 1,396 observations on 63 ewes from the same flock and it was found to be linear. Regression analysis was also used to describe the relationships among BCS and/or LW and weights (kg) and percentages in empty body weight (EBW) of dissected tissues. The prediction of weights and percentages in EBW of total fat (TF) and of all fat depots afforded by BCS was better than that provided by LW. Only the weight of muscle and the percentage of bone in the EBW were more efficiently predicted by LW than by BCS. IMF represented the largest fat depot with a BCS of 1 and 2, whereas SCF was the most important site of fat deposition with a BCS of 3 and 4. Allometric coefficients for each fat depot in TF suggest that the fat deposition order in ewes from this breed is: IMF, OMF, SCF and KKCF. Results demonstrate that BCS is a better predictor than LW of body reserves in this breed and that LJ is a suitable anatomical region to evaluate BCS.

show abstract

Section: Resultsmentioning

confidence: 99%

Relationships of Body Composition and Fat Partition with Body Condition Score in Serra da Estrela Ewes

Caldeira¹,

Portugal²

2007

Asian Australas. J. Anim. Sci

View full text Add to dashboard Cite

show abstract

“…In accordance with the findings of Sejian et al (2009), who found that lambs born to Malpura ewes with a BCS of 2.5 at fattening were lighter at weaning than those born to ewes with a BCS of 3.0 and 3.5. the results shown in Tables 2 and 3 explain the effect of BCS on BW of ewes and lambs; higher BW was in BCS-3 and 3.5. The pre-breeding BCS had no impact on the weight at weaning or the growth of the lambs in Awassi ewes, whereas the pre-lambing BCS had a favorable impact on both results (Hossamo et al, 1986). Different letters vertically mean, significant difference at (P≤0.05).…”

Section: Resultsmentioning

confidence: 93%

Effect of Body Condition Score and Weaning Age in Some Productive Traits of Awassi Sheep

Sultan¹,

Abdul-Rahman²

2023

MJA

View full text Add to dashboard Cite

To study the impact of the body condition score (BCS) of ewes on body weight (BW) and body weight gain (BWG) of ewes and lambs and the effect of weaning age on BW and BWG of lambs, thirty Awassi ewes (2-3 years old) with their borne male lambs were used in the study. Ewes condition-scored and assigned to three groups, 1 st , 2 nd and 3 rd groups were with BCS 2.5, 3 and 3.5 respectively. Lambs weaned neither 60 or 90 days (5 lambs for each), the study lasted 90 days. The analyzed data showed significant (P≤0.05) differences in high BCS ewes; also, lambs BW increased significantly by 3 and 3.5 compared with 2.5 BCS at the 4 th , 6 th , and 8 th weeks of the study. Total BWG was higher significantly for BCS-3 and 3.5 ewe's lambs. While body weight increased significantly for BCS-3 and 3.5 ewe lambs at the 10 th and 12 th weeks of study. Ewes were significantly heavier whose weaned her lambs at 60 days, while lambs weaned at 90 days had higher BW at the 10 th and 12 th weeks of the study. BWG was better significantly (P≤0.05) for BCS-2.5 and 3 in lambs at 12 th week. In conclusion, this means that BCS-3 lambs had a higher BW, while 2.5 and 3 BCS lambs had a better BWG at the end of the study.

show abstract

The Awassi Sheep Breeding Project in Syria

Kassem¹

1988

Increasing Small Ruminant Productivity in Semi-Arid Areas

View full text Add to dashboard Cite

The genetic improvement of Syrian Awassi sheep with special reference to milk production

Cited by 12 publications

References 3 publications

Relationships of Body Composition and Fat Partition with Body Condition Score in Serra da Estrela Ewes

Relationships of Body Composition and Fat Partition with Body Condition Score in Serra da Estrela Ewes

Effect of Body Condition Score and Weaning Age in Some Productive Traits of Awassi Sheep

The Awassi Sheep Breeding Project in Syria

Contact Info

Product

Resources

About