The Effect of Different Environmental Factors on Milk Yield Characteristics of Holstein Fresian Cattle Raised with Different Production Scale on Teke Region of Turkey

Abstract

This study was intended to determine whether there was any difference between the parameters of herd size and milk yield based on the hypothesis that the dairy cattle enterprises in the Teke Region used different production methods depending on their herd size. Total milk yield and 305-d milk yield were increased in parallel with the farm-scale and reached 8968.70 ± 124.56 kg and 7632.20 ± 79.67 kg, respectively, in the farms with the largest scale of 101 heads and above (p < 0.001). It was further determined that milk yield decreased significantly in the summer calving season compared to other seasons (Summer: 7897.20 ± 154.48 b, Autumn: 8344.80 ± 169.33 a, Winter: 8054.50 ± 127.22 a, Spring: 8133.60 ± 159.77 a) (p < 0.01). Heat stress is thought to be the reason for the low milk yield in the summer season compared to other seasons. It was shown that the small-scale farms with 1–10 cows had the longest lactation length (394.90 ± 6.90 days) (p < 0.001). It was also determined that there is a directly proportional and significant relationship between the lactation number of Holstein cattle and lactation milk yield and 305-d milk yield values (p < 0.01). It was determined that dairy cattle in the 5th lactation had the highest 305-d milk yield value with 6992.00 ± 164.40 kg. In conclusion, a positive statistical correlation was found between the scale of dairy farms and their milk production parameter.

Effect of Environmental Factors on Fertility and Milk Yield Traits of Simmental Cattle Raised on Different Production Scales in Tropical Region (Teke)

“…It was also reported in the studies that there was a positive relationship between enterprise scale and farm size and that enterprise scale had a positive effect on farm pro tability (Bravo-Ureta and Rieger 1990, Gloy et al 2002). In light of these ndings, as the scale of the enterprise grows, the success of management, organization, care, feding management, and breeding in dairy farms and their awareness and knowledge on these issues increase (Sipahi 2022).…”

“…305-day MY and LMY were the highest in winter season Özkan and Güneş (2007). andSipahi (2022) reported that the effects of the calving season on 305-day MY and LMY were signi cant and the highest values were obtained in autumn and winter.It was determined that the effects of lactation number on LL, 305-day MY, LMY, and LDP were insigni cant. 305-day MY and LMY were detected the highest values in the fth lactation.…”

“…In this study, the LL value determined as 365.80 days in Denizli Province, which were similar to the values reported by Sipahi (2022) as 366.50, 366.60, and 363.80 days in Holsteins raised in Burdur, Denizli, and Isparta provinces in the Teke Region, respectively. However,Sipahi (2022) determined the effect of province on LL was insigni cant. In this study, the general LL determined as 337.71 days which was higher than the values reported by Akbulut (1998) as 291 days,Özkan (2007) as 310.20 days, Petrovic et al (2009) as 313.88 days, and Gündoğan (2019) as 339.20 days.…”

Genetic and Non-Genetic Factors Affecting Test Day Milk Yield and Milk Composition Traits in Crossbred Dairy Cattle in Ethiopia

“…The calving season significantly impacted test-daily milk yield; this is similar to what Tadesse and Dessie (2003) observed in Ethiopia for the daily milk yield of Holstein Friesians and their crosses. According to Sipahi (2022), there was a seasonal effect on the test-day milk yield of Holstein Friesian cows in Turkey. Although milk yield was high during the rainy season, Desyibelew and Wondifraw (2019) reported higher levels of the milk constituents during the dry season; this is similar to the current study except for lactose and density; all milk constituents are numerically high, which may be due to the low water content of the feed.…”