Effect of Supplemental Feeding with Glycerol or Propylene Glycol in Early Lactation on the Fertility of Swedish Dairy Cows

Lomander, Hanna; Gustafsson, H.; Frössling, Jenny; Ingvartsen, Klaus Lønne; Larsen, Torben; Svensson, C.

doi:10.1111/j.1439-0531.2012.02004.x

Cited by 4 publications

(8 citation statements)

References 32 publications

(69 reference statements)

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“…This result was not in agreement with the study by Lomander et al. () who found that glycerol feeding did not influence the first luteal activity. Short‐term fluctuations in energy intake (Dunne et al.…”

Section: Discussioncontrasting

confidence: 99%

“…To the best knowledge of authors, there is only one study (Lomander et al. ) that has investigated effects on early fertility measurements following supplemental feeding of glycerol. Lomander et al.…”

Section: Introductionmentioning

confidence: 99%

“…Lomander et al. () concluded that supplemental feeding of glycerol to dairy cows in early lactation did not influence the number of days from calving to resumption of luteal activity. On the other hand, supplemental glycerol tended to increase days to first artificial insemination (AI) without subsequent increase in the number of days until conception (Lomander et al.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, supplemental glycerol tended to increase days to first artificial insemination (AI) without subsequent increase in the number of days until conception (Lomander et al. ).…”

Section: Introductionmentioning

confidence: 99%

“…Cows fed glycerol and Ca-propionate, both glucogenic agents, during the insemination period have a shorter interval between calving and last insemination (Pehrson et al 1992). To the best knowledge of authors, there is only one study (Lomander et al 2012b) that has investigated effects on early fertility measurements following supplemental feeding of glycerol. Lomander et al (2012b) concluded that supplemental feeding of glycerol to dairy cows in early lactation did not influence the number of days from calving to resumption of luteal activity.…”

Section: Introductionmentioning

confidence: 99%

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Effects of Feeding Dry Glycerol to Primiparous Holstein Dairy Cows on Follicular Development, Reproductive Performance and Metabolic Parameters Related to Fertility during the Early Post‐partum Period

Karamishabankareh

Kafilzadeh

Piri

et al. 2013

Reprod Domestic Animals

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This study examined the effects of dry glycerol supplementation on follicular growth, post-partum interval to first ovulation, concentration of serum metabolites and hormones related to fertility, body condition score (BCS) and body weight (BW) in primiparous Holstein dairy cows. Sixty primiparous Holstein dairy cows were randomly assigned to two groups (control: n = 30 and glycerol supplemented: n = 30). Dry glycerol (250 g/day/cow) was fed as a top dressing to the common lactating total mixed ration (TMR) from parturition to 21 days post-partum. Ovaries were examined four times using ultrasonography on days 13, 19, 25 and 36 post-partum to determine ovarian follicular growth. Concentration of serum metabolites and hormones was determined weekly. Body condition score was evaluated weekly from weeks 1 to 5 after parturition, and BWs were recorded three times on days 1, 11 and 21 during the experimental period. The cows fed dry glycerol had more large follicles (p < 0.0001) and corpora lutea (CL) (p = 0.02) compared with the control cows. Days to the first ovulation (p = 0.06), days to first oestrus (p = 0.05), services per conception (p = 0.06) and days open (p = 0.004) were positively affected by dry glycerol supplementation. Serum concentration of glucose and insulin was higher in dry glycerol-supplemented cows (p = 0.1; p = 0.06, respectively). Feeding glycerol had no effect on mean serum concentrations of β-hydroxybutyrate, non-esterified fatty acids and IGF-1 during the experimental period. However, significant differences were observed at concentration of BHBA and IGF-1 (p = 0.02 and p = 0.04, respectively) between two groups on day 21 after calving. The cows in the glycerol-fed group had higher serum progesterone concentrations on days 33 (p = 0.007) and 36 (p = 0.004) after calving. Supplemented cows had lower body condition loss during weeks 1-5 after calving compared with the control cows (0.34 vs 0.41 BCS). In week 13 post-partum, the proportion of cycling cows was 83.3 and 69.9% for those which received supplemented or non-supplemented diet, respectively. These results demonstrated that feeding dry glycerol as a glucogenic supply may be useful to improve negative energy balance and reproductive efficiency in young cows which calve with high requirement of energy.

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Section: Discussioncontrasting

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of Feeding Dry Glycerol to Primiparous Holstein Dairy Cows on Follicular Development, Reproductive Performance and Metabolic Parameters Related to Fertility during the Early Post‐partum Period

Karamishabankareh

Kafilzadeh

Piri

et al. 2013

Reprod Domestic Animals

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Long-term oral drenching of crude glycerol to primiparous dairy cows in early lactation

Kass¹,

Ariko²,

Samarütel³

et al. 2013

Animal Feed Science and Technology

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The role of rumen-protected choline in hepatic function and performance of transition dairy cows

2016

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High-producing dairy cows enter a period of negative energy balance during the first weeks of lactation. Energy intake is usually sufficient to cover the increase in energy requirements for fetal growth during the period before calving, but meeting the demand for energy is often difficult during the early stages of lactation. A catabolic state predominates during the transition period, leading to the mobilisation of energy reserves (NEFA and amino acids) that are utilised mainly by the liver and muscle. Increased uptake of mobilised NEFA by the liver, combined with the limited capacity of hepatocytes to either oxidise fatty acids for energy or to incorporate esterified fatty acids into VLDL results in fatty liver syndrome and ketosis. This metabolic disturbance can affect the general health, and it causes economic losses. Different nutritional strategies have been used to restrict negative effects associated with the energy challenge in transition cows. The provision of choline in the form of rumen-protected choline (RPC) can potentially improve liver function by increasing VLDL exportation from the liver. RPC increases gene expression of microsomal TAG transfer protein and APOB100 that are required for VLDL synthesis and secretion. Studies with RPC have looked at gene expression, metabolic hormones, metabolite profiles, milk production and postpartum reproduction. A reduction in liver fat and enhanced milk production has been observed with RPC supplementation. However, the effects of RPC on health and reproduction are equivocal, which could reflect the lack of sufficient dose-response studies.

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Effect of Supplemental Feeding with Glycerol or Propylene Glycol in Early Lactation on the Fertility of Swedish Dairy Cows

Cited by 4 publications

References 32 publications

Effects of Feeding Dry Glycerol to Primiparous Holstein Dairy Cows on Follicular Development, Reproductive Performance and Metabolic Parameters Related to Fertility during the Early Post‐partum Period

Effects of Feeding Dry Glycerol to Primiparous Holstein Dairy Cows on Follicular Development, Reproductive Performance and Metabolic Parameters Related to Fertility during the Early Post‐partum Period

Long-term oral drenching of crude glycerol to primiparous dairy cows in early lactation

The role of rumen-protected choline in hepatic function and performance of transition dairy cows

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