The Effects of Restricted and Ad Libitum Milk Feeding on Growth and Health of Calves

İbrahim Öztop; Serkan Özkaya

Makale detayları

The Effects of Restricted and Ad Libitum Milk Feeding on Growth and Health of Calves

Yazarlar:

İbrahim Öztop | Serkan Özkaya

Yayıncı:

Tekirdag Namik Kemal University

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.21 Issue 4, pp.1033-1044

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001327090

pISSN:

1302-7050

Anahtar kelimeler:

Özet:

 In recent years, there has been a growing concern among consumers regarding animal welfare and their requirements, leading to an increased interest in exploring new approaches to calf rearing. Therefore, the aim of this study was to investigate the effects of milk feeding levels on the growth, feed intake, and blood variables of group-raised calves during the suckling period. Ten Holstein calves, 5 in each group, were used in the study when they were five years old. The calves were acclimated to an automated feeder during the initial 19 days of the experiment, and their initial LWs were recorded after weighing them again. The study concluded upon weaning the calves when they were sixty years old, with a total duration of 36 days The calves in the first group G1 were provided with a total of 4 Lday of milk replacer, divided into 2 L servings in the morning and evening. Conversely, calves in the second group G2 were allowed a maximum intake of 12 Lday of milk replacer, mimicking the natural sucking behaviour, with feedings in the morning 05:00-08:00, midday 10:00-13:00, and evening 16:00-20:00. Despite no significant differences in the LW, total and daily LW gains, and body measurements averages between of the groups, calves in G1 consumed more starter feed compared to those in G2 P0.05. There was a non-significant improvement in feed efficiency in favor of calves in G2. Additionally, significant increases were noted in serum glucose concentrations among the biochemical variables in G2 P0.05. Furthermore, hematological blood variables, including haemoglobin, haematocrit, and erythrocyte values, tended to increase in calves in G2. However, there was no significant effect of milk feeding levels observed on oxidative stress, antioxidative defense mechanisms and immune response. In conclusion, the results from this study suggest that the amount of milk feeding does not exert a significant effect on the growth and health of the calves during the milk-feeding period.

 In recent years, there has been a growing concern among consumers regarding animal welfare and their requirements, leading to an increased interest in exploring new approaches to calf rearing. Therefore, the aim of this study was to investigate the effects of milk feeding levels on the growth, feed intake, and blood variables of group-raised calves during the suckling period. Ten Holstein calves, 5 in each group, were used in the study when they were five years old. The calves were acclimated to an automated feeder during the initial 19 days of the experiment, and their initial LWs were recorded after weighing them again. The study concluded upon weaning the calves when they were sixty years old, with a total duration of 36 days The calves in the first group G1 were provided with a total of 4 Lday of milk replacer, divided into 2 L servings in the morning and evening. Conversely, calves in the second group G2 were allowed a maximum intake of 12 Lday of milk replacer, mimicking the natural sucking behaviour, with feedings in the morning 05:00-08:00, midday 10:00-13:00, and evening 16:00-20:00. Despite no significant differences in the LW, total and daily LW gains, and body measurements averages between of the groups, calves in G1 consumed more starter feed compared to those in G2 P0.05. There was a non-significant improvement in feed efficiency in favor of calves in G2. Additionally, significant increases were noted in serum glucose concentrations among the biochemical variables in G2 P0.05. Furthermore, hematological blood variables, including haemoglobin, haematocrit, and erythrocyte values, tended to increase in calves in G2. However, there was no significant effect of milk feeding levels observed on oxidative stress, antioxidative defense mechanisms and immune response. In conclusion, the results from this study suggest that the amount of milk feeding does not exert a significant effect on the growth and health of the calves during the milk-feeding period.

 In recent years, there has been a growing concern among consumers regarding animal welfare and their requirements, leading to an increased interest in exploring new approaches to calf rearing. Therefore, the aim of this study was to investigate the effects of milk feeding levels on the growth, feed intake, and blood variables of group-raised calves during the suckling period. Ten Holstein calves, 5 in each group, were used in the study when they were five years old. The calves were acclimated to an automated feeder during the initial 19 days of the experiment, and their initial LWs were recorded after weighing them again. The study concluded upon weaning the calves when they were sixty years old, with a total duration of 36 days The calves in the first group G1 were provided with a total of 4 Lday of milk replacer, divided into 2 L servings in the morning and evening. Conversely, calves in the second group G2 were allowed a maximum intake of 12 Lday of milk replacer, mimicking the natural sucking behaviour, with feedings in the morning 05:00-08:00, midday 10:00-13:00, and evening 16:00-20:00. Despite no significant differences in the LW, total and daily LW gains, and body measurements averages between of the groups, calves in G1 consumed more starter feed compared to those in G2 P0.05. There was a non-significant improvement in feed efficiency in favor of calves in G2. Additionally, significant increases were noted in serum glucose concentrations among the biochemical variables in G2 P0.05. Furthermore, hematological blood variables, including haemoglobin, haematocrit, and erythrocyte values, tended to increase in calves in G2. However, there was no significant effect of milk feeding levels observed on oxidative stress, antioxidative defense mechanisms and immune response. In conclusion, the results from this study suggest that the amount of milk feeding does not exert a significant effect on the growth and health of the calves during the milk-feeding period.

 Son yıllarda, hayvan refahı ve hayvan gereksinimleri ile ilgili tüketicilerdeki endişeler, buzağı yetiştirmenin yeni yollarını bulma arzusunu arttırmıştır. Bu nedenle çalışmanın amacı, süt içirme miktarının grup halinde yetiştirilen buzağıların süt içme dönemindeki büyüme, yem tüketimi ve kan değişkenleri üzerindeki etkilerinin incelenmesidir. Çalışmada 5 günlük yaşta 10 Holstein buzağı her grupta 5 buzağı kullanılmıştır. Denemenin ilk 19 gününde buzağılar otomatik yemleme robotuna alıştırılmıştır. Buzağılar tekrar tartılarak deneme başı canlı ağırlıkları belirlenmiştir. Buzağılar 60 günlük yaşta sütten kesilmişler ve deneme sonlandırılmıştır. Deneme toplam 36 gün sürmüştür. Birinci grupta bulunan G1 buzağıların, sabah 2 L ve akşam 2 L olmak üzere toplam 4 Lgün süt ikame yemi tüketmelerine müsaade edilmiştir. İkinci grupta bulunan G2 buzağıların ise doğal emzirme davranışı olan sabah 05:00-08:00, öğlen 10.00-13:00 ve akşam 16:00-20:00 olmak üzere azami 12 Lgün süt ikame yemi tüketmelerine müsaade edilmiştir. Grupların canlı ağırlıkları, toplam ve günlük canlı ağırlık artışları ve vücut ölçüleri ortalamaları arasında önemli farklılık bulunamamıştır. Ancak G1de bulunan buzağıların, G2de bulunan buzağılara nazaran daha fazla buzağı başlangıç yemi tükettikleri belirlenmiştir P0.05. Yemden yararlanma oranında G2de bulunan buzağıların lehine önemli olmayan bir iyileşme elde edilmiştir. Biyokimya kan değişkenlerinden serum glikoz konsantrasyonlarında G2de bulunan buzağılarda önemli artış elde edilmiştir P0.05. Hematolojik kan değişkenlerinden Hemoglobin, hematokrit, ve eritrosit değerleri G2de bulunan buzağılarda artma eğilimi göstermiştir. Ancak, oksidatif stres, antioksidatif savunma mekanizması ve bağışıklık sistemi üzerine süt içirme miktarının önemli bir etkisi gözlenmemiştir. Çalışmada elde edilen sonuçlar, süt içirme miktarının buzağıların süt içme dönemindeki gelişimleri ve sağlıkları üzerine önemli etkisinin olmadığını göstermiştir.

Makale detayları

The Effects of Restricted and Ad Libitum Milk Feeding on Growth and Health of Calves

Yazarlar:

İbrahim Öztop | Serkan Özkaya

Yayıncı:

Tekirdag Namik Kemal University

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.21 Issue 4, pp.1033-1044

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001327090

pISSN:

1302-7050

Calves

Growth

Health

Milk feeding amountBuzağı

Gelişim

Sağlık

Süt içirme miktarı

Sayı

Makale detayları

Yazarlar: İbrahim Öztop | Serkan Özkaya

Yayıncı: Tekirdag Namik Kemal University

Ana Başlıklar: Hayvan Yetiştirme

Dergi: Tekirdağ Ziraat Fakültesi Dergisi Vol.21 Issue 4, pp.1033-1044

Belge Tipi: Makale

Yayın Tarihi: 9/2024

Belge Dili: İngilizce

Document ID (Org No.): 2001327090

pISSN: 1302-7050

Sayı

Yazarlar:

İbrahim Öztop | Serkan Özkaya

Yayıncı:

Tekirdag Namik Kemal University

Ana Başlıklar:

Hayvan Yetiştirme

Dergi:

Tekirdağ Ziraat Fakültesi Dergisi Vol.21 Issue 4, pp.1033-1044

Belge Tipi:

Makale

Yayın Tarihi:

9/2024

Belge Dili:

İngilizce

Document ID (Org No.):

2001327090

pISSN:

1302-7050