Milk Production in Awassi Sheep and their Crosses with Assaf under Accelerated Lambing System

Alkass, Jalal E.; Al-Azzawi, W. A. R.; Al-Tayy, Hafedh Mossa Ali

doi:10.17656/jzs.10190

Cited by 9 publications

(7 citation statements)

References 9 publications

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“…Daily milk production of ewes in February (478.09 gm) was differed significantly (p≤0.05) as compared with January (458.95 gm) and December (475.60 gm). Similar results were reported by (Jalal et al, 2016 andBalisany, 2016), this result could be attributed to changes in the environmental conditions, particularly in ambient temperature together with the availability of feeds during different lambing months (Alkass, 2009). The ewes with male lams had higher milk production (488.57 gm) than did those with female (451.29 gm) lambs the differences being significant (P≤0.05).This may attributed to the fact that males are usually bigger than females and need higher nutrients, thus induce mothers to produce more quantities of milk, these findings were in agreement with those reported by (Owen,1976;Ploumi andEmmanouilidis,1999 andAl-sherwani, 2013) ,and on the other hand (Al-samarai et al, 2014 andJalal et al, 2016), showed no significant effect of sex on milk production.…”

Section: Resultssupporting

confidence: 89%

Genetic Evaluation and Relationships Between Body Weight and Milk Production in Kurdi Sheep

Raoof¹

2021

PLANT ARCHIVES

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This study was carried out at the private field Jezhnikan village ,Erbil, Kurdistan region, Iraq. The data set used was (245) records from(101) ewes and ( 5) sires (rams) of Kurdi sheep over the period April (2018) until May( 2020, in order to study the genetic evaluation and non-genetic factors (age of dam, month of lactation, sex, type of birth and year of birth) relationship between ewe's weight at mating ,birth and milking with daily milk production (DMP), total milk production (TMP).The overall mean of the daily milk production (TDM) and total milk production (TMP) (470.90gm )and (45.95kg) respectively. The results showed that the age of dam, Month of lactation, sex and type of birth affected significantly (p≤0.05) on daily milk production and total milk production, excepted year of birth was non-significant effected on milk production. Ewes aged 4years and 5≥ years 2 year old ewes produced significantly (P≤ 0.05) lower (DMP), (386.67gm) than 3year (423.26gm) than 4 years (480.67gm) and 5≥ (493.97 gm.) old ewes. The heritability estimate of (DMP) was found to be (0.13). The repeatability estimate of (DMP) was found to be (0.22).however, the genetic and phenotypic correlation had non-significant effected between milk production and ewes weights at mating, birth and milking, the breeding value of sire (rams)ranged between (-1.194 to1.520),it was concluded that the most of genetic and non-genetic factors showed a significant impact in the performance of Kurdi sheep which requires study and determine the impact of interest and administrative aspects of the herd to increase performance and maximize economic return.

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Section: Resultssupporting

confidence: 89%

Genetic Evaluation and Relationships Between Body Weight and Milk Production in Kurdi Sheep

Raoof¹

2021

PLANT ARCHIVES

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“…Lactation period averaged 169.33 and 140.28 days for ewes maintained in restricted and continuous suckling system, respectively; and the difference between them is significant (p < 0.05) (Table 1). The length of lactation recorded herein is longer than that reported earlier by other workers on Awassi ewes (3,9,14,19) as well as for karadi ewes (2), but it is almost similar to those indicated by Alkass and A keryi. (1) for Awassi (169.66 daya) and karadi ewes (168.71 days).…”

Section: Resultssupporting

confidence: 77%

“…Results revealed that the overall means of preweaning, post-weaning, total, and commercial milk yield averaged 57.25 ± 3.22, 65.66 ± 6.63, 122.91 ±7.56 and 75.52 ± 7.72 L, respectively. Moreover, total milk yield recorded herein by native ewes is higher than those reported earlier for the Awassi in Iraq (3,14) as well as it is higher than those recorded earlier for karadi ewes (2,4,21).However, such value is very close to those found earthier for Awassi ewes ( 126.05 L) and karadi ewes (126.39 L) by Alkass and Akreyi (1). Such differences in yield could be attributed to the genetic make-up of the animals, as well as conditions of ewes and feeding and management practices followed in different farms.…”

Section: Resultssupporting

confidence: 59%

The Combined Effect of Suckling System and Weaning Weight on Milk Traits of Native Sheep

Alkass¹

2021

Iraqi J. Agric. Sci.

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Data of the current stud, were collected on 32 Iraqi native sheep aged 2-5 years maintained on commercial flock. At lambing, the 32 ewes were divided into two equal groups, lambs in the 1st group were left with their dams till weaning and then were milked twice daily till they dry off (Continuous), whereas the 2nd group, lambs were separated at night for 12 hr. and the ewes were milked once daily at morning (Restricted). Then each main group was subdivided into two group to be weaned their lambs when they reached 3 or 4 times of their birth weight (WB1 and WB2). Results revealed that ewes of restricted suckling produced significantly (P < 0.05) more post weaning (80.80 vs.49.44 L), total milk yield (135.01 vs. 109.94 L) and sealable milk (99.86 vs. 49.44 L) and had significantly longer lactation period (169.3 vs. 140.2 days) compared ewes in continuous suckling. Also, results obtained indicate that daily gain in weight averaged 0.23 kg from birth to weaning and from birth to marketing and 0.24 kg from weaning to marketing and neither suckling system nor weaning weight affected these trait significantly. It can be concluded that restricted suckling resulted in an increase in sealable milk without any adverse effect on growth of lambs.

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“…In a previous research conducted in Iraq by [20], no statistically significant impact of the lambing month was observed on the milk protein % and fat % in Karadi, Awassi, and Hamdani ewes. This outcome may be ascribed to variations in environmental factors, specifically fluctuations in ambient temperature and the varying accessibility of feeds across different lambing months [21].…”

Section: Month Of Birthmentioning

confidence: 99%

Evaluation of Milk Characteristics of Karadi Sheep Breed in Halabja Province, Kurdistan Region of Iraq

Karym,

AL-Barzinji

2024

UPJOZ

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In the Kurdistan region, sheep play a pivotal role as the most significant farm animals, with lamb sales constituting a major portion of the income. In present study data was collected from commercial Karadi ewes flock located in Chawg village, Halabja province, Kurdistan Region of Iraq. A total of 163 ewes were utilized to investigate the impact of various factors on daily milk yield (DMY), total milk yield (TMY), lactation period (LP) and the percentages of total solid (TS), fat, protein and lactose. The investigation also sought to determine correlations among these parameters. The least square mean ± SE of DMY, TMY, LP and the percentages of TS, fat, protein and lactose were 613.5±90.06g/ewe/day, 67.05±11.8kg/ewe, 107.8±11.14day/ewe and 16.41±1.84%, 5.79±0.69%, 5.43±0.64% and 4.28±0.51%, respectively. It is evident that all fixed effects, with the exception of the type of birth, wield a significant influence (P≤0.05) on both milk production and composition. Notably, a substantial positive correlation (p≤0.01) was observed between total solid percentages and the percentages of fat, protein and lactose. The BLUP values for TMY were ranged from -60.64 kg/ewe to 1 kg/ewe, while the MPPA value for TMY were ranged from 57.73092 to 78.83427. The wide range of BLUP values and the MPPA values for TMY indicate the presence of significant genetic variation among the Karadi ewes under study, where selection can play an important role in increasing productivity and the genetic and economic gain to the breeder in next generation and increasing genetic and productive ability of Karadi sheep in the Kurdistan region of Iraq.

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Milk Production in Awassi Sheep and their Crosses with Assaf under Accelerated Lambing System

Cited by 9 publications

References 9 publications

Genetic Evaluation and Relationships Between Body Weight and Milk Production in Kurdi Sheep

Genetic Evaluation and Relationships Between Body Weight and Milk Production in Kurdi Sheep

The Combined Effect of Suckling System and Weaning Weight on Milk Traits of Native Sheep

Evaluation of Milk Characteristics of Karadi Sheep Breed in Halabja Province, Kurdistan Region of Iraq

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