Effect of lactation number on milk yield in Holstein dairy cows

Eşki, Funda; Kurt, Serdal

doi:10.47748/tjvr.772135

Cited by 5 publications

(3 citation statements)

References 19 publications

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“…On the other hand, it is known that in addition to the dry period length (17), many different parameters such as lactation number, season and management can affect milk yield in buffaloes (8). Similarly, a previous study reported that the number of lactations can affect milk yield in Holstein dairy cows (26). Therefore, in the presented study, buffaloes with similar lactation numbers were used to eliminate the effect of lactation between groups, and the study was also conducted on animals managed in similar conditions during the same season.…”

Section: Discussionmentioning

confidence: 98%

The Effect of Dry Period Length on Average Milk Yield in Early Lactation Period in Anatolian Buffaloes

Eşki

Kurt

Yazlık

2022

Dicle Üniversitesi Veteriner Fakültesi Dergisi

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This study aimed to investigate the effect of short and long dry period on milk yield in next early lactation period in Anatolian buffalo. The buffaloes (n=64) were assigned to three groups as a short dry period (Group SD; n=17; ≤6 weeks), a normal dry period (Group ND; n=20; 8-10 weeks) and a long dry period (Group LD; n=27; ≥12 weeks). Early lactation milk yields and lactation numbers of all groups were compared statistically. It was observed that there was no difference between SD, ND and LD groups in terms of lactation numbers (p >0.05). The milk yield in the early lactation was lower in the SD group compared to the other groups (p 0.05). However, it was found that the milk yields of the ND and LD groups were similar in the early lactation period. In conclusion, short dry period had a negative effect on milk yield in early lactation period in Anatolian buffaloes. On the other hand, animals with normal and long dry periods had a similar milk yield. However, we think that milk yield should be followed throughout all lactation period for a more precise result.

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Section: Discussionmentioning

confidence: 98%

The Effect of Dry Period Length on Average Milk Yield in Early Lactation Period in Anatolian Buffaloes

Eşki

Kurt

Yazlık

2022

Dicle Üniversitesi Veteriner Fakültesi Dergisi

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“…The impact of lactation number on milk yield varies (Funda & Serdal, 2021; Mellado et al., 2011; Vijayakumar et al., 2017). Our study revealed significant milk yield differences between cows in the second and fifth lactation, supporting a decline in total milk production post‐4th lactation, as noted also by Vijayakumar et al.…”

Section: Discussionmentioning

confidence: 99%

Assessment of antibiotic use patterns in bovine mastitis treatment in the dairy sector in Serbia

Tomanić,

Samardžija,

Kladar

et al. 2023

Reprod Domestic Animals

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The dairy sector is essential for the world's food systems, playing a vital role in agricultural production. Yet, mastitis, an inflammation of the mammary gland, affects a considerable portion of the dairy cow population annually, leading to reduced productivity and sustainability. Insight into therapeutic protocols is essential for a better understanding of the situation on farms with the aim of developing new or harmonizing existing protocols in the mastitis treatment. This study conducted on dairy farm in Serbia aimed to explore the most commonly used antibiotics during bovine mastitis treatment and their association with daily milk yield. Data from 100 lactating cows, including therapeutic protocols, lactation numbers, mastitis episodes, milk yield, and antibiotic usage, were obtained from a computerized database and statistically analysed. The results demonstrated a high prevalence of narrow‐spectrum antibiotics usage, with the majority of cows treated with combination therapy. The route of antibiotic application did not significantly impact daily milk yield, while treatment duration had no discernible effect. Nonetheless, specific antibiotics were associated with milk yield variations, suggesting the need for careful antibiotic selection and management in mastitis therapy. These findings emphasize the importance of prudent antibiotic use to safeguard animal health and long‐term milk production sustainability.

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“…There are few studies which are related with IgG composition and concentration of colostrum in dairy cows (Guy et al 1994, Morin et al 2001, Moore et al 2005. In last 25 years, with the help of successful genetic selection milk yield per cow has been increased about times (Abuelo et al 2019, Funda andSerdal 2021). So, it supposed to be more diluted and lower IgG concentrations of colostrum in a lactation.…”

Section: Introductionmentioning

confidence: 99%

Holştayn İneklerde Bir Laktasyonda Üretilen Toplam Kolostral IgG’nin Araştırılması

Kara

Yağci

et al. 2023

Kocatepe Veterinary Journal

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Since dairy cows have greater milk production than beef cows, because of the dilution of IgG colostrum of dairy cows assumed to be of poorer quality compared with beef cows. The objective of the present study was to investigate quality of colostrum and total IgG produced in a lactation by Holstein cows. The average colostrum volume at the first seven milking were measured as 5.42 L, 6.73 L, 8.55 L, 9.26 L, 8.44 L, 9 L, 10.01 L respectively. The average total colostrum produced by cows in the first 3 days period was calculated as 57.41L. The average colostrum IgG concentration were calculated as 90.81 mg/ml, 68.67 mg/ml, 58.40 mg/ml, 37.33 mg/ml, 15.22 mg/ml, 10.7 0mg/ml, 5.9 mg/ml respectively for each milking. In conclusion, enough colostrum and IgG are produced in the first 3 days in Holstein cows for calf feeding. In addition to this, there is huge opportunity that excessive amount of IgG and colostrum could be processed for other by-products.

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Effect of lactation number on milk yield in Holstein dairy cows

Cited by 5 publications

References 19 publications

The Effect of Dry Period Length on Average Milk Yield in Early Lactation Period in Anatolian Buffaloes

The Effect of Dry Period Length on Average Milk Yield in Early Lactation Period in Anatolian Buffaloes

Assessment of antibiotic use patterns in bovine mastitis treatment in the dairy sector in Serbia

Holştayn İneklerde Bir Laktasyonda Üretilen Toplam Kolostral IgG’nin Araştırılması

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