Esmer ve Siyah Alaca Sağmal İnekler ile Düvelerde İki Farklı Yemleme Programının Karşılaştırılması

Öz

Bu çalışmanın amaçları, 2 farklı yemleme programının; i) 20 adet Siyah Alaca ve 20 adet Esmer sığırda 144 günlük deneme süresince süt verimi ve kompozisyonu ile duyusal özellikleri üzerine etkilerini 1. denemede değerlendirmek, ii) 18 adet Esmer ve 14 adet Siyah Alaca düvenin 90 gün boyunca gelişme performanslarını 2. denemede karşılaştırmaktır. Birinci denemede, yemleme programları [(i) mısır silajı (25.0 kg/baş/gün) ile sınırlı miktarda kuru ot (5.0 kg/baş/gün) ve 4.5 kg/baş/gün kesif yem (MS yemleme programı); (ii) kuru ot (10,0 kg/baş/gün) ve 4.5 kg/baş/gün kesif yem (KO yemleme programı)] günlük süt verimi ile süt yağı, kuru madde ve yağsız kuru madde oranlarını önemli derecede etkilememiştir. Farklı yemleme programlarının sütün duyusal özellikleri üzerine etkileri önemli olmayıp, silaj içeren rasyonla yapılan yemleme, sütün duyusal özellikleri üzerine herhangi bir olumsuz etkiye neden olmamıştır. İkinci denemede, DMS yemleme programındaki [mısır silajı (10.0 kg/baş/gün) ile sınırlı miktarda kuru ot (2.0 kg/baş/gün) ve 2.0 kg/ baş/gün kesif yem] düveler, DKO programındakilere [kuru ot (6.0 kg/baş/gün) ve 2.0 kg/baş/gün kesif yem] göre % 49.7 oranında daha yüksek toplam canlı ağırlık artışı sağlamışlardır. DMS yemleme programındaki düvelerin ortalama yemden yararlanma oranları önemli ölçüde daha iyi bulunmuştur. Sonuç olarak, incelenen her iki yemleme programı Esmer ve Siyah Alaca ineklerin günlük süt verimi ile sütün kompozisyonu ve duyusal özellikleri üzerine önemli etkilerde bulunmazken, DMS yemleme programı düveler için tavsiye edilmiştir.

Anahtar Kelimeler

• Mısır silajı,günlük süt verimi,sütün duyusal özellikleri,canlı ağırlık artışı

Comparison of Two Different Feeding Programs For Brown Swiss And Holstein Friesian Lactating Cows And Heifers

Öz

Purposes of the study were; i) to evaluate the effects of 2 different feeding programs on the yield, composition and organoleptic properties of milk from 20 Brown Swiss (BS) and 20 Holstein Friesian (HF) cows during 144 days in the trial 1, ii) to compare the growth performance of the 18 BS and 14 HF heifers during 90 days in the trial 2. In trial 1, feeding schedules [( i) corn silage (25.0 kg/head/day) plus limited amount of dry hay (5.0 kg/head/day) and 4.5 kg/head/day of concentrate (CS feeding program); ii) all dry hay (10.0 kg/head/day) and 4.5 kg/head/day of concentrate (DH feeding program)] did not significantly affect on daily milk yield as well as percentages of fat, dry matter and non-fat dry matter of the milk. The influence of the different feeding programs on the sensorial features of the milk was not significant, and feeding silage based ration did not cause any adverse effect on the organoleptic properties of the milk. In trial 2, heifers in the HCS feeding program [corn silage (10.0 kg/head/day) plus limited amount of dry hay (2.0 kg/head/day) and 2.0 kg/head/day of concentrate] had 49.7 % higher total weight gain than those in HDH feeding program [all dry hay (6.0 kg/head/day) and 2.0 kg/head/day of concentrate]. The average feed efficiency ratio for heifers fed in HCS feeding program was also improved considerably. In conclusion, HCS feeding program could be suggested for HF and BS heifers, although both feeding programs studied did not result in significant influence on the daily milk yield as well as milk composition and sensorial properties of the milk from HF and BS cows.

Anahtar Kelimeler

• Corn silage,daily milk yield,organoleptic properties of milk,weight gain

Kaynakça

1. Beck, P.A., Stewart, C.B., Gray, H.C., Smith, H.C., Gunter, S.A., 2009. Effect of wheat forage maturity and preservation method on forage chemical composition and performance of growing calves fed mixed diets. J. Anim. Sci., 87: 4133-4142.
2. Bodyfelt, F.W., Tobias, J., Trout, G.M., 1988. The Sensory Evaluation of Dairy Products. Van Nostrand Reinhold / AVI Book Publishing, New York.
3. Borreani, G., Giaccone, D., Mimosi, A., Tabacco, E., 2007. Comparison of hay and haylage from permanent Alpine meadows in winter dairy cow diets. J. Dairy Sci., 90: 5643-5650.
4. Broderick, G.A., 1995. Performance of lactating dairy cows fed either alfalfa silage or alfalfa hay as the sole forage. J. Dairy Sci., 78: 320-329.
5. Colombari, G., Borreani, G., Crovetto, G.M., 1999. Comparison of lucerne silage and ventilated hay in maize silage-based rations for dairy cows for production of milk destine for Grana cheese. Grass and Forage Sci., 54: 184-194.
6. Coulon, .J B., Pradel, P. Verdier, I., 1995. Effect of forage type on milk yield, chemical composition and clotting properties of milk. Lait, 75: 513-521.
7. Coulon, J.B., Pradel, P. Verdier, I., 1997. Effect of forage conservation (hay or silage) on chemical composition of milk. Ann. Zootechn., 46:21-26
8. Dennis, T.S., Tower, J.E., Nennich, T.D., 2012. Effects of feeding hay and baleage to prepubertal dairy heifers during the grower period. Prof. Anim. Scientist, 28: 648-656.

9. Erdman, R.A., Piperova, L.S., Kohn, R. A., 2011. Corn silage versus corn silage: alfalfa hay mixtures for dairy cows: Effects of dietary potassium, calcium and cation-anion difference. J. Dairy Sci., 94: 5105-5110.
10. Eun, J.S., Fellner, V., Burnsand, J. C., Gumpertz, M.L., 2003. Eastern gamagrass evaluated as hay or silage for lactating dairy cows. Prof. Anim. Scientist, 19: 362-369.
11. Heinrichs, A.J. Hargrove, G.L., 1987. Standards of weight and height for Holstein heifers. J. Dairy Sci., 70: 653-660. Heinrichs, A.J., Hargrove, G. L., 1994. Standards of weight and height for Ayrshire, Brown Swiss, and Milking Shorthorn heifers. J. Dairy Sci., 77: 1676-1681.
12. Kalac, P., 2011. The effects of silage feeding on some sensory and health attributes of cow’s milk: A review. Food Chem., 125: 307–317.
13. Klosowski, B., Bidwellporebska, K., Klosowska, D., Piotrowski, J., 1992. Microstructure of skelatal-muscles fed silage-based vs hay-based diets. 1. Fiber diameters. Reprod. Nutr. Dev., 32: 1-10.
14. Manzi, M., Junga, J.O., Ebong, C., Mosi, R.O., 2012. Factors affecting pre and post-weaning growth of six cattle breed groups at Songa Research station in Rwanda. Livest. Res. Rural Dev., 24: 4.
15. Cormick., M.C., M.E, Han, K. J., Moreira, V. R, Blouin, D.C, Forbes, S., 2011. Forage conservation efficiency and lactation responses to bahiagrass conserved as barn-stored hay, outdoor-stored hay or baleage. J. Dairy Sci., 94 (5): 2500-2507.
16. SPSS, 2004. SPSS for Windows, Release 13.0, Chicago, IL., USA.
17. Tan, M., Yolcu, H., Dumlu, G. Z., 2015. Nutritive value of sunflower silages ensiled with corn or alfalfa at different rate. Tar. Bil. Der.-J. Agric. Sci., 21:184-191.
18. Wyss, U., Collomb, M., 2011. Influence of hay or silage on cow-milk fatty acid composition. Proceedings of the 16th Symposium of European Grassland Federation, 100-102, 29th-31st August, Gumpestein, Austria.