The latest gender proportion registered when you look at the over step one 000 lambs off an enthusiastic Awassi group in the Lebanon try forty-eight

The latest gender proportion registered when you look at the over step one 000 lambs off an enthusiastic Awassi group in the Lebanon try forty-eight

Inside the an experimental group from inside the Leba­non, oestrus reached their height that have normal cycles from inside the August and Septem­ber however, was still handled toward a fairly high-level up until December; away from January to help you April this new heating significantly diminished into the matter, and you can out-of Will get so you can July it stopped entirely. The duration of the brand new oestrus stage varied between 15 and you will 20 months, with on average 18 weeks. Along heats ranged from sixteen so you can 59 times, that have 30 period normally. 9 for each­penny of one’s warms had been silent, once the manifested by the thickness away from mul­tiple cycles, with the fresh ab­sence regarding mating effect (Barr, 1968). Brand new Awassi ewe displays couples outward signs of oestrus. Pro-oestrus are quick and you may alternatively long as well as the onset of oestrus abrupt, since the cessation try gradual. Inside the Iraq, the principal lamb­ing season out of Awassi ewes is during No­vember, as well as in Lebanon, the latest Syrian Arab Republic and Israel into the Decem­ber-January.

Brand new indicate pregnancy period inside the an enthusiastic Awassi head within the Lebanon has come considered 149.5 days to own men lambs and 148.6 weeks for females (Choueiri, Barr and you may Khalil, 1966). In another Lebanese flock, an average gestation length to own single-born lambs try 151.two days (Fox mais aussi al., 1971) if you find yourself, during the Western University Farm in Lebanon, it absolutely was found to be 152.6 days (McLeroy and you may Kurdian, 1958).

Within the Bedouin and you will fellahin Awassi flocks, not more than 5 per cent of adult ewes has twins. Inside the Lebanon, the fresh lambing portion of mature Awassi reproduction ewes constantly averages regarding 60. Into the Syrian Awassi flocks, fertility is even reasonable – 70-80 lambs for every a hundred ewes. From inside the experimental flocks that have advanced giving and you may repairs, high lambing rates (110-120) was indeed recorded. The twinning rates out-of Awassi ewes will raise as much as age six years and you will decrease thereafter.

step three people to 51.seven lady. When you look at the a stationary group ordered off Syrian nomads, exactly how many males exceeded compared to ladies; inside single lambs it was 52.4:47.6 and also in twins 57.4:42.6. 3:fifty.7; twenty two.8 percent of your own twin sets had been regarding male, twenty four.six each­penny off women, and you can 52.6 % out of one another genders.

Into the a flock of Anatolian Awassi sheep, the general gender ratio out of male in order to women single and you will dual lambs is 44

New facts from barrenness show a wide range in different flocks. Into the a Lebanese head where ewes was in fact with rams out of June in order to January, there had been just cuatro percent bare ewes. From inside the a huge flock, ob­tained regarding six more countries in Lebanon, 10 percent of one’s ewes and therefore came into temperatures did not lamb, ranging from dos % to twenty-six % among regional groups. When you look at the a fixed group in which the rams was indeed left to the ewes year round, 14 percent don’t mutton through the one 12 months. Inside the Egypt, 20% out of several Awassi ewes produced by Syrian inventory did not conceiveputer info of the many whole milk-recorded Awassi ewes into the Israel during a couple straight decades let you know a keen average barrenness out-of forty.eight % into the yearlings, 10.5 percent in 2-year-olds, and 6.25 % from inside the mature ewes.

Into the an enthusiastic Awassi flock inside main Anatolia, 20 percent of your ewes mated in one season and you may a dozen percent mated in another 12 months remained bare

The new death price for the Bedouin and you will fellahin Awassi flocks try fifteen-20 for every­penny inside regular ages, and up in order to fifty percent in years off drought otherwise serious winters (Hirsch, 1933). While this refers to flocks total , the new mor­tality out-of lambs just isn’t less than that of adult sheep. In Syrian Awassi flocks from the Sleep­ouin, the newest death regarding lambs after delivery reaches 5-10 % inside beneficial ages, and 29-50 percent in years which have cooler winters and accumulated snow-safeguarded grasslands, in the event the ewes are starved. Into the fellahin flocks, kept in villages the spot where the ewes mutton from inside the professional­tected locations and are generally offered specific straw also pasture, lamb mortality are lower than inside Bedouin flocks. Inside Iraq, famine and you may problem try reckoned to minimize the average lamb crop to help you 40-60 percent (Williamson, 1949). Into the an ex­perimental Awassi group within the Iraq, where nourishment and you can handling of brand new sheep is actually superior to those people are not utilized in Bedouin and you can fellahin flocks, single lambs presented the common mortality rate out of 15.7 percent and twins 18.0 per­penny through the a half dozen-year months. There’s a broad desire from inside the Awassi flocks having men lambs to own a dramatically highest mortality speed in the first day off existence than for women lambs. When you look at the countries where in actuality the Awassi isn’t native however, could have been imported inside the apparently quick quantity, death from lambs throughout acclimati­zation within the a unique microbial environment is normally higher.

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