H. A. Huda BASHIR, I. BUSHARA, İbrahim El İMAM

Sudan’da Geleneksel Koşullarda Baggara İneklerinin Pariteden Etkilenen Süt Verimi, Süt Bileşimi ve Üreme Performansı

Bu çalışma, Baggara sığırlarında paritenin süt verimine ve süt kimyasal bileşimine ve pariteden etkilenen buzağılama aralığına etkisini değerlendirmek amacıyla yapılmıştır. Baggara sığırlarının sürüsünden 48 inek seçilmiştir. İnekler tartılarak her grup (12) inek, parite sırasına, birinci, ikinci, üçüncü ve dördüncü paritelere göre dört gruba ayrılmıştır. Tüm inekler doğal olarak otlatılmıştır. Sonuçlar, parite sırasının (P≤0.05) günlük, aylık ve toplam süt verimlerini önemli ölçüde etkilediğini ortaya koymuştur. Süt üretimi avans paritesi ile artmıştır. Yüksek (P≤0.05) süt verimi, aylık ve günlük süt 3. paritede sırasıyla 668,47 kg, 133,73 kg ve 4,49 kg olarak belirlenmiştir. Sonuçlar, laktasyon döneminin birinci ve üçüncü ayında süt kompozisyonu için farklı pariteler arasında önemli farklılıklar olduğunu (P≤0.05), 2. pariteler (6.21) ve 3. pariteler (6.26) için ilk ayda yüksek yağ yüzdeleri olduğunu göstermiştir. laktasyonun 3. ayında. Sonuçlar doğumun, ilk kızgınlığa kadar geçen günlerin ve gebe kalınan günlerin parite sayısından önemli ölçüde (P≤0.05) etkilendiğini göstermiştir. Östrus göstermek için daha kısa günler, primipar ineklerde görülmüştür (56.19 ±8.72 gün), ayrıca gebe kalma günleri, parite düzenini önemli ölçüde etkilemiştir (P≤0.05). Sonuçlar ayrıca buzağılama aralığı için farklı doğum sırası sıralaması, ilk doğumlar (10.04 ay) tarafından puanlanan kısa buzağılama günü ve 4. doğumlar (13.17 ay) için uzun günler arasında anlamlı bir fark (P≤0.05) göstermiştir. Sonuç olarak, doğal otlatmaya bağımlı olan Baggara inekleri, bu hayvanların asıl amacının et için olduğu düşünülerek üçüncü paritede en yüksek süt üretimine ulaşmıştır.

Anahtar Kelimeler:

Baggara inekleri, süt üretimi, süt bileşimi, parite sırası, üreme performansı, Sudan.

Milk Yield, Milk Composition and Reproductive Performance of Baggara Caws as Effected by Parity Under The Traditional System, Sudan

This study was conducted to evaluate the effect of parity on milk yield and milk chemical composition and calving interval of Baggara cattle as effected by parity. Forty eight cows were selected from the herd of Baggara cattle. The cows were weighed and divided into four groups, each group comprised of (12) cows according to parity order, first, second, third and fourth parities. All cows were raised on natural grazing.The results revealed that parity order significantly (P≤0.05) affected daily, monthly and total milk yields. Milk production increased with advance parity. High (P≤0.05) milk yield, monthly and daily milk scored by 3rd parities as 668.47 kg, 133.73kg and 4.49kg, respectively. The results showed that there were significant differences (P≤0.05) between different parities for the milk composition during the first and third month of lactation period, with high fat percentages in the first month for 2nd parities (6.21) and 3rd parities (6.26) in 3rd month of lactation. The results indicated that calving, days to first estrus and days to conceive were significantly (P≤0.05) affected by parity number. Shorter days to show estrus was obtained by primiparous cows (56.19 ±8.72 days), also Days to conceive exerted significantly (P≤0.05) effected parity order. The results also showed a significant difference (P≤0.05) between different parities order for calving interval, that short day of calving interval scored by primiparous parities (10.04 months) and long days by 4th parities (13.17 month).In conclusion, Baggara cows that is depended on natural grazing reached its peak milk production in third parities with considered that the main purpose of these animals for meat production.

Keywords:

Baggara caws, milk production, milk composition, parity order, reproductive performance, Sudan.,

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